i O, - i'v V ', - Spi llfe. ri w * W r \ f$á & k ^ ji? ^ ^ t X*, i i» 1Í: < _<!^ ^ -^ / {?ť$ ACADEMIA/PRAH A I I I N I» I I - I I 7 I

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1 i O, - i'v V ', - Spi llfe. ri w * W r \ f$á & k ^ ji? ^ ^ t X*, i i» 1Í: < _<!^ ^ -^ / {?ť$ ^ ACADEMA/PRAH A SRPEN 1988 N» - 7

2 ČESKÁ MYKOLOGE Časopis Cs. vědecké společnosti pro mykologii k šíření znalosti hub po stránce vědecké i praktické Ročník 42 Číslo 3 Srpen 1988 Vedoucí redaktor: prof. RNDr. Zdeněk Urban, DrSc. Redakční rada: RNDr. Dorota Brillová, CSc.; RNDr. Petr Fragner; MUDr. Josef Herink; RNDr. Věra Holubová, CSc.; RNDr. František Kotlaba, CSc.; RNDr. Vladimír Musílek, DrSc.; doc. RNDr. Jan Nečásek, CSc.; ng. Cyprián Paulech, CSc.; prof. RNDr. Vladimír Rypáček, DrSc., člen korespondent ČSAV. Výkonný redaktor: RNDr. Mirko Svrček, CSc. Příspěvky zasílejte na adresu výkonného redaktora: P raha 1, Vítězného února 74, N árodní muzeum, telefon sešit vyšel 10. května 1988 OBSAH F. Kotlaba, Z. Pouzar: Studie o typech chorošů popsaných A. P ilá te m M. Svrček: Nové nebo m éně známé disikomycety. X V E. Záhorovská: Parazitická huba M icrasphaera a jej askakarpové Stádium n a duboch Slovenska. 149 J. Klán, Z. Rand a, J. Bern ad a, a J. Horyna: Sledování neradioaktivního Rb, Cs a radioaktivního cesia u vyšších h u b A. K o c k o v á - K r a t o chví 1 o v á, E. Slavíková, E. Kovačovská a Wai Yin Mok: Zriedka sa vysikytujúci kvasinkovité organizmy z povodia A m a z o n k y J. Herink: K osmdesátiinám Anny P i l á t o v é J. Kunert a K. Le m h a rit: Významné životní výročí doc. RNDr. M ilana H ejtm ánka, DrSc M. Svrček a Z. Urban: Jarom ír K lika 100 let od narození Referáty o literatuře: R. L. Giibertsom et L. Ryvarden, N orth A m e rican polypores, vol. 2 (F. K otlaba a Z. Pouzar, str. 190) H. K reisel et F. Scihiauer, M ethoden der mykologischen L aboratorium s (V. Šašek, str. 190); M. A. Bondarceva et E. Ch. Parm asto, Q predelitel gribov SSSR, porjadok afiilloforovye (F. Kotlaba, str. 191);. A. Dudka et S. P. Vasser, Griby, sjpravočnik miikologa i gr-ibnilka (F. K otlaba, str. 192). Přílohy: černobílé tabule: V. a V. M icrosphaera alphiitoides Griffon et M aublanc

3 ČESKÁ MYKOLOGE Ča s o p i s Če s k o s l o v e n s k é v é d e c k é s p o l e č n o s t i p r o m y k o l o g i i ROCn K SEŠT 3 Type studies of polypores described by A. Pilát. Studie o typech chorošů popsaných A. Pilátem -. František Kotlaba and Zdenek' Pouzar There are dealt with 32 taxa o f polypores described as new by A. Pilát, type material of which is preservod in herbarium PRM, Je pojednáno o 32 taxonech chorošů popsaných jako nové A. Pilátem, jejichž typový materiál je uložen v herbářích PRM. Dr. Albert P i l á t ( ) described during his life a large num ber of polypores (Polyporales s. 1.) not only from Europe but also from N orth America, Africa and especially from Asia. Most of these new tax a come from N ortheastern Asia, while the European tax a come m ostly from contem porary T ranscarpathian Ukraine USSR (between the m ost eastern p art of Czechoslovakia). W ith regard to publication of the species, we cite only the references where the name was validly published we om it reference to earlier publications where some names appeared in invalid form. We would like to note, however, th a t m any of the new tax a of polypores described by A. P ilát appear to be identical w ith taxa (mainly species) described previously by other authors and so become synonyms. He overlooked previously described species (e. g. Xanthochrous krawtzewii Pil. 1934, which is identical w ith the much older Mucronoporus andersonii Ell. et Everh. 1890) or he overestim ated the im portance of certain characters, especially when trying to distinguish tax a in w hat are now known to be highly variable species; e. g. in Polyporus latemarginatus Dur. et Mont. in Mont = Poria ambigua Bres. 1897, which he described a t least four times under the names Leptoporus zilingianus Pil. 1934, L. werneri Pil. 1939, Poria consobrinoides Pil and P. reticulato-marginata VW Fortunatelly, almost all P iláťs type m aterial is ex tan t in the herbarium of the Mycological D epartm ent of the N ational Museum, Prague (PRM): only very few of types are missing. n this first part of our revision we present those taxa which seem to us to be clear and those which may be of particular interest especially for polyporologists. Type m aterial studied in detail by us is indicated by an exclam ation m ark in parentheses (!). We quote in full the original data given on herbarium lables (supplementing only the state) as they sometimes differ in certain details from those published by P ilát. W hen no type (holotype) was indicated by Pilát, we have selected a lectotype (mostly in ). P iláťs polypore types were studied in p art e. g. by J. L. Lowe, S. Domaňski, T. Niemelá etc. as well as by ourselves; the published results (and some unpublished) are quoted in pertinent places.

4 ČESKÁ MYKOLOGE 42 (3) 1988 nonotus ehinensis P ilát, Ann. Mycol. 38: Holotype: China, Cliansi, Lao chan, 2178 m, 5. X. 1935, leg. E. Licent, No. 5137, det. A. P ilát, PRM (1). P ilát (1940) believed th e substrate to be possibly fir (,,A bies? ) b u t according to th e paleobotanist Dr. E. Opravil (Opava), th e bark belongs to some broad-leaved tree. A pparently a distinct species Phellinus cliinensis (Pil.) Pil. (see Parm asto, K otlaba et Pouzar 1980). nonotus nidus-pici (Pil.) ex P ilát, Sborn. Nár. Mus. P rah a 9B: 108, Holotype: Yugoslavia, in silva Maksimir prope Zagreb, V. 1937, leg. V. Škorič, det. A. P ilát, PRM (1); paratype: Carmassol, sur chêne, 5. X. 1912, leg. A. Galzin, No , det. H. B ourdot u t Poria obliqua), PRM (!). Surely a distinct species nonotus nidus-pici Pil. ex Pil. (see e. g. Černý 1965). nonotus radial us var. licentii P ilát, Ann. Mycol. 38: 81, Lectotype: China, Chansi, Yao chan, 31. V. 1935, leg. E. Licent, No. 4435, det. A. P ilát, PRM (1). According to Pegler (1967) and as a result of our own study we revised the type of Polyporus xeranticus Berk, from K (H. 1814/6812) on it is Phellinus xeranticus (Berk.) Pegler. Leptoporus alina-utensis P ilát, Bull. Soc. Mycol. Fr. 52: 307, Lectotype: USSR, K azakstan, Alm a-ata, Picea schrenkiana, X. 1935, leg. (B..) Krawtzew, Pl. Y. 93, det. A. Pilát, PRM 25154(!). According to P ilát ( ) it is identical w ith Leptoporus kymatodes (Rostk.) Pil. (sensu B ourdot et Galzin); we confirmed this identity in our revision of This polypore is currently known under the nam e Tyromyces balsameus (Peck) Murrill. U H Leptoporus bourdotii P ilát, Bull. Soc. Mycol. Er. 48: 167, Lectotype: USSR, Carpatorossia, Žám er prope K obylecká Polana, ad corticem H F agi silvaticae, V. 1929, leg. et det. A. P ilát, PRM 33843(1). Fide Lowe (1962) it is Poria pannocincta (Romell) Lowe which we confirmed H following a study of th e type m aterial (as Gloeoporus pannocinctus (Romell) H B J. Erikss.) and (as Tyromyces 'pannocinctus (Romell) K oti. et Pouz.). H H Pilát, however, originally included under Poria bourdotii still another species, H f represented by paratype: Turkey, Turcia asiatiea, m ontes lgaz-dagh, vil. Cankiri, H Pinus nigra, cca m s. m., V.-V. 1931, leg. et det. A. Pilát, P R M This was revised by us ( ) as Skeletocutis amorpha (Fr.) K otl. et Pouz. We H have selected as the lectotype the cited collection (PRM 33843) because Pilát him self H (see P ilát et L indtner 1938) restricted his Poria bourdotii solely to th e species to H which belong this specimen (see K otlaba et Pouzar 1964a). H Leptoporus bredecelcnsis Pil. ex P ilát, Sborn. Nár. Mus. P rah a 9B: 103, Lectotype: USSR, Carpatorossia, in silvis m ixtis virgineis (Abies alba, Faqus silvatica) ad jugum m ontis Menčul inter rivos K uzy et Bredecel prope vicum Trebušany, ait m, Fagus silvatica, V. 1934, leg. et det. A. P ilát, PRM (!). H H H H 130

5 KOTLABA ET POUZAR: POLYPORES DESCRBED BY A. PLÁT Considered by us for some tim e to be an independent species, viz. Spongipellis bredecelensis (Pil. ex Pil.) Bond. (rev see also K otlaba et Pouzar 1965). According to D avid (1969) and our own recent study, it is identical with Spongipellis delectans (Berk.) M urrill, confirmed by č ern ý (1979), Ja h n (1974) etc. Leptoporus bulíjaricus P ilát, Bull. Soc. Mycol. Fr. 53: 84, Holotype: Bulgar:a, Bačkovo, V. 1936, leg.. K lášterský et M. Deyl, det. A. P i lát, rev. by S. Doinanski , u t Coriolellus squalens, PRM (!). According to Domaňski (1964) as well as our study it is identical w ith Trametes squalens P. K arst., now known as Dichomitus squalens (P. K arst.) Reid. Leptoporus dalmatieus P ilát, Bull. Soc. Mycol. Fr. 53: 84, H olotype: Yugoslavia, D alm atia, Dubrovnik, ad truncum P ini maritimae, V 1936, leg. R. Veselý, det. A. Pilát, rev by S. Domaňski, ut Coriolellus squalens,et by F. K otlaba et Z. Pouzar, u t Trametes squalens, PRM 33388(!) As w ith the previous species it was identified by Domaňski (1964) as Trametes squalens (P. K arst.) Reid, an identification which we can now confirm. Leptoporus litschaueri Pilát, Bull. Soc. Mycol. Fr. 48: 9, H olotype: USSR, Sibiria, distr. Tomsk, ad fl. Tschulym, 15. V. 1931, leg. (B..) Krawtzew, b. 26, det. A. P ilát, PRM (!). Pilát ( ) wrongly renam ed it on nom enclatural grounds Leptoporus asiaticus Pil. According to K otlaba et Pouzar (1966) it is identical with Oligoporus sericeomolli s (Romell) M. Bond. Leptoporus m oeszii Pil. ex P ilát, Sborn. Nár. Mus. P raha 9B: 100, Lectotype: H ungary, Budapest, H ortus botanicus, in truncis Robiniaepseudacaciae, 1918, leg. S. Magocsy-Dietz, det. A. P ilát, PRM (1). This seems to be an independent species Rigidoporus moeszii (Pil. ex Pil.) Pouz. (see Pouzar 1966). Leptoporus simunii Pil. ex P ilát, Sborn. Nár. Mus. P raha 9B: 100, Lectotype: USSR, Carpatorossia, Žámer supra Kobyiecká Polana, ad ligna Fagi silvaticae, V. 1929, leg. e t det. A. P ilát, PRM (!). A good species Tyromyces simanii (Pil.)Parm. (see e. g. Parm asto 1961, K otlaba et Pouzar 1964b; Gilbertson et Lowe 1962 and Lowe 1966 both as Poria simanii). Nevertheless according to Gilbertson et R yvarden (1987) the oldest name for it is Oligoporus hibernicus (Berk, e t Br.) Gilb. et Ryv. Leptoporus werneri P ilát, Stud. Bot. Čechoslov. 2: 61, H olotype: Marocco, ad terrain in horto n stitu ti Rerum N aturalium rabatensis febr. 1938, leg. R. G. W erner, (det. A. P ilát), PRM 22853(!). This polyporc is identical w ith Rigidoporus latemarginatus (Dur. et Mont. in Mont.) Pouz. w ith typical encrusted cystidia, rev by F. K otlaba e t Z. Pouzar 9 (see also Donk 1974). Leptoporus zameriensis P ilát, Bull. Soc. Mycol. F r 51: 256 (recte 356), L ectotype: USSR, Žámer, Kobyiecká Polana, ad truncos Fagi em ortuos, V. 1929, leg. et det. A. P ilát, PRM 38318(1). According to the revision of the type m aterial made by J. L. Lowe ( ) and by us ( and ) it is Polyporus pannocinctus Romell = Gloeoporus

6 ČESKÁ MYKOLOGE 42 (3) 1988 pannocinctus (Romell) J. Erikss. = Tyromyces pannocinctus (Romell) K oti. et Pouz. fide Lowe 1946 (see also K otlaba et Pouzar 1964). Leptoporus /.iliiiifiaiius Pilát, Bull. Soc. Mycol. Fr. 49: 8 (recte 258), Holotype: USSR, Sibiria, distr. Tomsk, Betula verrucosa, 3. X. 1925, leg. (M. K.) Ziling, P. f. 14, (det. A. Pilát), PR M According to the revision of S. Domaňski ( ) it is Poria ambigua Bres. f. zilingiana (Pil.) Domaň. tide Domaňski 1964; according to our revision ( ) it is identical with the variable Rigidoporus latemarginatus (Dur. et Mont. in Mont.) Pouz. Phellinus baumii Pilát, Bull. Soc. Mycol. Fr. 48: 25, Holotype: USSR, Asia orientalis, distr. W ladiwostok, Syringa sp., 5. V. 1928, (leg. M. K.) Zilling, no. 267, (det. A. Pilát), PRM (1). A good species Phellinus baumii Pil., an opinion which we can confirm see e. g. Bondarcev 1953, Bondarcev 1961, Ljubarskij et Vasileva Phellinus eontigulformis Pilát, Bull. Soc. Mycol. Fr. 51: 372, Holotype: USSR, Sibiria, W asjuganje, ad radices P in i sibiricae, 15. V. 1934, leg. (B..) Krawtzew, W 116, det. A. P ilát, PRM 80809(1). According to the revision of type m aterial made by one of us (F. K.) ( ) it is Phellinus isabellinus (Fr.) Bourd. e t Galz. = P. viticola (Schw.) Donk. Phellinus torulosus var. laricieolus Pilát, Bull. Soc. Mycol. Fr. 51: 374, Holotype: USSR, Sibiria, Sajany, Larix sibirica, X. 1931, (leg. B..) Krawtzew, P. 19 kr., (det. A. Pilát), PRM (1). According to our revision of type m aterial ( ) and the new revision by one of us (F. K.) it is Phellinus nigrolimitatus (Romell) Bourd. et Galz. see K otlaba (1972). jh Poria eonsobrinoides Pilát, Bull. Soc. Mycol. Fr. 51: 380, H olotype: USSR, W asjuganje, ad ligna Pruni padi, X. 1934, leg. (B..) K raw t zew, W 46a, det. A. P ilát, PRM 77993(1). The author himself (Pilát : 427) identified it later w ith Poria ambigua in its acystidiate form. We support this identification but refer this fungus to Rigidoporus latemarginatus (Dur. et Mont. in Mont.) Pouz. Poria fissiliforinis P ilát, Stud. Bot. Cech. 3: 1, H olotype: USA, Creve Coeur Lake, Mo., log of Acer sp., Sept. 26, 1926, leg. L. O. Overholts, ex H erbarium Overholts 19780, det. A. Pilát, PRM (1). This polypore is considered by Lowe (1966) and Gilbertson et R yvarden (1985, 1987) as an independent species which we can fully confirm (the holotype was revised by us on ); Poria mentschulensis Pil. ex Pil described later from Europe is identical w ith P. fissiliformis (see below). As we consider this polypore to be a member of the genus Tyromyces P. K arst, s. lato, hence the following new com bination is proposed: Tyromyces fissiliformis (Pil.) K otlaba et Pouzar comb, nov.; basionym : Poria fissiliformis P ilát, Studia Botanica Cechica 3 :1, The carpophores of this polypore are much more variable th an hitherto stated. Based on dried m aterial, Pilát described the fungus as a totally resupinate polypore (w ithout pilei). D uring the last 25 years we have accum ulated substantial knowledge 132

7 KOTLABA ET POTJZAR: POLYPORES DESCRBED B Y A. PLÁT of this fungus from several localities in Czechoslovakia, in addition to one from P o land (Bialowieža Virgin Forest). Tt only rarely forms totally resupinate carpophores and is m ostly effuso-reflexed w ith small pilei, usually up to 4 (maximally 8,2) cm broad. W hen fresh the surface of the pileus is zonate and strikingly coloured apricot orange, contrasting w ith the whitish pores. The rather small thin-walled (not thick- - walled) spores, X am, characterise the species. An im portant anatom i cal character is the structure of the context in which the presence of sparse thick-walled, long, unbranched hyphae, very similar to skeletal hyphae, is distinctive. We draw the attention to mycologists of these distinguishing characters, as this polypore is rather widespread in Czechoslovakia, rare in Yugoslavia, Poland, T ranscarpathian Ukraine of the USSR and in the USA (see Gilbertson et Ryvarden 1987, K otlaba 1984, Lowe 1966, Soukup 1981). Poria gelatinoso'tuhulosa P ilát, Bull. Soc. Mycol. Fr. 51: 383, H olotype: USSR, Sibiria, W asjuganje, ad ligna putrida P ini silvestris*), 10. X. 1934, leg. (B..) Krawtzew, W. 128, det, A. Pilát, PRM (1). This m aterial was revised by S. Domaňski ( ) who considered it a good species ( Bonam et generi Tyromyces K arst, propinquam speciem esse v id etu r ) and by Z. Pouzar ( ) who identified it w ith the pale form of Ceriporiopsis placenta (Fr.) Domaň. Poria! ilv< lla P ilát, Sborn. Nár. Mus. P raha 9B: 104, H olotype: USSR, Carpatorossia, in silvis m ixtis virgineis (Abies alba, Picea excelm, Fagus silvatica etc.) in valle rivi Bílý Potok prope vicum Trebušany, alt m s. in., Abies alba, V. 1935, leg. et det. A. Pilát, PRM (!). According to the revision of S. Domaňski ( ) and as a result of our own study ( ) it is ncrustoporia tschulymica (Pil.) Domaň., now known as Skeletocutis odora (Sacc.) Ginns (see Niemelá 1985). Poria kazakstanica P ilát, Bull. Soc. Mycol. Fr. 52: 318, H olotype: USSR, K azakstan, Alma-Ata, Picea schrenkiana, X. 1935,'(leg. B..) Kraw tzew, P. v. 83, (det. A. Pilát), PRM 25149; paratype PRM (!). According to the revision made in Jan u ary 1961 and published by Lowe (1966) it is Poria albolutescens (Romell) Bourd. et Galz. now known as Anomoporia albolutescens (Romell) Pouz. (revised by us on ). Poria medulla-panis var. prunicoln Pilát, Bull. Soc. Mycol. Fr. 51' 389, H olotype: USSR, W asjuganje, Prunus padus, X. 1934, leg. (B..) Krawtzew, W 136, det. A. P ilát, PRM (!). Pilát ( ) re-valuated and consequently renam ed it as Poria subtrametea Pil. (see below), but J. L. Lowe (. 1961) revised it as a young specimen of Trametes colliculosa (Pers.) Lund. = Polyporus albo-carneo-gilvidus Romell. K otlaba and Pouzar (1963) confirmed his identification as Pachykytospora tuberculosa (Fr.) K otl. et Pouz., although it was subsequently re-evaluated as an independent species, Pachykytospora subtrametea (Pil.) K otl. e t Pouz. (K otlaba et Pouzar 1979). Poria m cntsehulensis P ilát, Sborn. Nár. Mus. P raha 9B: 105, H olotype: USSR, Carpatorossia, in silvis m ixtis virgineis (Abies alba, Fagus *) On original small piece of paper written by the collector himself, there is however Prune eibirica

8 ČESKÁ MYKOLOGE 42 (3) 1988 silvatica) ad jugum monti.s Menčul inter rivos Kuzy et Bredecel prope vicum Trebušany, ait m s. m. M atrix: Fagus silvatica, V. 1934, leg. et det. A. Pilát. PRM (!). According to our revision it is identical w ith Poria fissiliformis Pil. (see above), which has priority. Poria retieulato-inarjjinata P ilát, Bull. Soc. Mycol. Fr. 51: 380, Holotype: USSR, Sibiria, W asjuganje, Prunus padus, 8. V. 1934, leg. (B..) K rawtzew, W. 33, det. A. P ilát, PRM (!). Pilát ( ) later identified this species w ith Poria ambigua Bres., which is here confirmed, following a study of the type m aterial; the fungus should be known as Rigidoporus latemarginatus (Lév. et Mont. in Mont.) Pouz. Poria subtrametea P ilát, Atlas hub evropských 3: 453, The holotype is the same as for Poria medulla-panis var. prunicola (see above) and Poria subtrametea has been proposed as a new name for this variety (see K otlaba et Pouzar 1979). Poria trametopora Pilát, Bull. Soc. Mycol. Fr. 51: 381, H olotype: USSR, Sibiria, districtus Narym, ad codicem P ini sibiricae, X. 1934, leg. (B..) K rawtzew, W 242, det. A. P ilát, PRM (!). According to the revision of the type m aterial made by J. L. Lowe ( ), S. Domaňski (* ), who published it next year (Domaňski 1964), and by us ( ) it is Poria subacida (Peck) Sacc. = Perenniporia subacida (Peck) Donk. Spores are ovoid, thick-walled, slightly dextrinoid, cyanophilous and w ithout germ pore; skeletal hyphae thick-walled, dextrinoid and cyanophilous. Poria tsehulymica Pilát, Bull. Soc. Mycol. Fr. 48: 35, Holotype: USSR, Sibiria, distr. Tomsk, ad fl. Tschulym, Populus trémula, X (published by Pilát erroneously as 1941), leg. (B..) Krawtzew, b. 33 (det. A. Pilát), PRM 60523(!). According to Domaňski (1963) who was first to revised the type m aterial ( ) it is a good species, viz. ncrustoporia tschulymica (Pil.) D om aň., an identification which we can confirm. The fungus, however, has an older name, viz. Skeletocutis odora (Sacc.) Ginns see Ginns 1984, Niemelá Eriksson (1958) provided the first modern description and illustration. Trametes inioans var. salíciseda P ilát, Bull. Soc. Mycol. Fr. 51: 363, Holotype: USSR, Sibiria, W asjuganje, 30. X. 1934, leg. (B..) Krawtzew, W 138, det. A. Pilát, PRM (!). The type m aterial was revised ( ) by us as Pachykytospora tuberculosa (Fr.) K otl. et Pouz. but later after study of rich m aterial ( ) we identified it with Pachykytospora subtrametea (Pil.) K otl. et Pouz. (see K otlaba et Pouzar 1979). Trametes narymiea Pilát, Bull. Soc. Mycol. Fr. 51: 364, 1936 (ut T. narymicus). H olotype: USSR, Sibiria, distr. Narym, Betula verrucosa, 1933, leg. (B..) K raw t zew 3112 (det. A. Pilát), PRM (1). A good species recognized folows revision of the type m aterial ( ) and 134

9 KOTLABA ET POUZAR: POLYPORES DESCRBED BY A. PLÁT published by Pouzar (1984) as Perenniporia narymica (Pil.) Pouz. t is identical with Perenniporia elongata (Overh.) Doman. which is, however, a later synonym. Xanthochrous krawtzpvvii P ilát, Bull. Soc. Mycol. Fr. 49: 273, p Lectotype: USSR, Asia onentalis, distr. Amur, Quercus mongolica, 1928 (leg. B..) Krawtzew, Cl. 96 (det. A. Pilát), PRM (!); paratype, 1. X. 1928, PRM (1). According to černý (1963) and Lowe (1966) it is identical with nonotus andersonii (Ell. et Everh.) Černý or Poria andersonii (Ell. et Everh.) Lloyd, a disposition which we can fully confirm. X anthochrous psciitloobliquiis P ilát, Bull. Soc. Mycol. Fr. 51: 377, H olotype: USSR, Sibiria, W asjuganje, ad truncum putridum Betulae verrucosae, 15. V. 1934, leg. (B..) Krawtzew, W. 203, det. A. Pilát, PRM ( ). According to our study of th e type m aterial ( ) it is identical with Aporpium caryae (Schw.) Teix. et Rogers. P ilát described large coloured spores which, however, belong to some other fungus; norm al small, hyaline spores belonging to Aporpium caryae, are present in the type (these hyaline spores were overlooked by Pilát). Xanthochrous suberoso-m ollis P ilát, Bull. Soc. Mycol. Fr. 52: 317, H olotype: USSR, Sibiria, distr. Minussinsk, Larix sibirica, 1. X. 1935, (leg. B..) K rawtzew, (det. A. Pilát), PRM 25131(1). Pilát classified it as Phellinus nigrolimitatus f. suberoso-mollis (in herb.) and published it as P. nigrolimitatus f. spongiosa M urashk. (Pilát : 545). t is however, norm al Phellinus nigrolimitatus and there is no reason to accord in the taxonom ic rank of varietv or form. R e fe r e n c e s BONDARCEV A. S. (1953) Trutovye griby evropejskoj časti SSSR i K avkaza p., Moskva et Leningrad. BONDARCEV A. S. (1961): Neskolko interesnych vidov Polyporaceae Dalnego Vostoka. Bot. Mater. Otd. Spor. R ast., Moskva et Leningrad, 14: E R K SSO N J. (1958): Studies in the H eterobasidiom ycetes and Hom obasidiom ycetes-aphyllophorales o f Muddus National Park in North Sweden. Symb. Bot. Upsal., Uppsala, 16/1: , tab ČERNÝ A. (1963): Rezavec Andersonův nonotus andersonii (EU. et Ev.) černý comb. nov. nový choroš pro ČSSR. Čes. Mykol., Praha, 17: 1 8. ČERNÝ A. (1965): Bionom ie, ozšíření a hospodářský význam chorošů nonotus nidus-pici Pilát a nonotus obliquus (Pers. ex Fr.) Pilát v ČSSR. Sborn. Nár. Muz. Praha 21B: ČERNÝ A. (1979): Bělochoroš bukový Spongipellis delectans (Peck) Murr. nový choroš pro ČSSR. - Čes. Mykol., Praha, 33: tab DAVTD A. (1969): Caractères culturaux et eytologiques d espèces du genre Spongipellis Pat. et affines. Bull. Mens. Soc. Linn. Lyon 38: DOM AŇSK S. (1963): Dwa nowe rodzaje grzybów z grupy Poria Pers. ex S. F. Gray Acta Soc. Bot. Polon., Warszawa, 32: DOM AŇSK S. (1964): Révision de certaines espèces de champignons de la famille Polyporaceae. Acta Soc. Bot. Polon., Warszawa, 33: DONK M. A. (1974): Check list o f European polypores. 169 p., Amsterdam et London. G LBERTSO N R. L. et LOWE J. L. (1962): N otes on western polypores.. New distribution records. Pap. Michigan Acad. Sci., Ann Arbor 47: GLBERTSON R. L. et R Y V A R D E X.. (1985): Some new combinations in the Polyporaceae. Myf'olaxon. thaca, 22: GLBERTSON R. L. et R Y V A R D E N L. (1987): North American polypores 2. Oslo. 135

10 ČESKÁ MYKOLOGE 42 (3) 1988 GNNS J. (1984): New names, new combinations and new synonym y in the Corticiaceae, Hymenochaetaceae and Polyporaceae. M ycotaxon, thaca, 21: JA H N H. (1974): Einige in W est-deutschland (BRD) neue, seltene oder wenig er bekannte Porlinge (Polyporaceae s. lato). W estf. Pilzbr., Detmold-Heiligenkirchen, 9 (1973): KOTLABA F. (1972): Ekologie a rozšíření ohňovce ohraničeného Phellinus nigrolim itatus (Romell) Bourd. et Galz. v Československu. Čes. Mykol., Praha, 26: , tab KOTLABA F. (1984): Zeměpisné rozšíření a ekologie chorošů (Polyporales s. 1.) v Československu. 194 p., 36 tab., 123 map. in append., ed. Academia, Praha. KOTLABA F. et POUZAR Z. (1963): N ový rod chorošovitých hub, dubovnice P achykytospora gen. nov. Čes. Mykol., Praha, 17: 27 34, tab KOTLABA F. et POUZAR Z. (1964a): Studie o bělochoroši nazelenalém Tyromyces pannocinctus (Romell) comb. nov. Čes. Mykol., Praha, 18: 65 76, tab KOTLABA F. et POUZAR Z. (1964b): Staronový choroš Tyrom yces gloeocystidiatus K otl. et Pouz. bělochoroš nahořklý. čes. Mykol., Praha, 18: , tab KOTLABA F. et POUZAR Z. (1965): Spongipellis litschaueri Lohwag a Tyrom yces km etii (Bres.) Bond, et Sing., dva vzácné choroše v Československu. Čes. Mykol., Praha, 19: 69 78, tab KOTLABA F. et POUZAR Z. (1979): An interesting Asian poty pore Pachykytospora subtram etea. čes. Mykol., Praha, 33: , tab L JU B A R SK J L. V. et VASLEVA L. N. (1975): Derevorazrušajuščie griby Dalnego Vostoka. 164 p., 53 tab., Novosibirsk. LOWE J. L. (1946): The Polyporaceae of New York State (The genus Poria). Techn. Publ. New York State Coll. Forest. 65: LOWE J. L. (1962): Studies in the genus Poria. V. Pap. Michigan Acad. Sei., Ann Arbor, 47: LOWE J. L. (1966): Polyporaceae of North America. The genus Poria. Techn. Publ. State Univ. Coll. Forest. Syracuse Univ. 90: NEM ELÄ T. (1985): On Fennoscandian polypores 9. Gelatoporia n. gen. and Tyromyces canadensis, plus notes on Skeletocutis and Antrodia. Karstenia, Helsinki, 52: PARMASTO E. (1961): O sistem atičeskom položenii trutovogo griba Chaetoporellus simanii (Pil.) Bond. Eesti NSV Tead. Akad. Toim et., ser. biol., Tallin, 10: , 1 tab. PARMASTO E., KOTLABA F. et POUZAR Z. (1980): Re-colloction of Phellinus cliinensis (Pil.) Pil. (Hymenochaetaceae). Čes. Mykol., Praha, 34: PEG L E R D. N. (1967): Notes on ndian H ym enoehaetoideae. K ew Bull., London, 21 (1967 to 1968): PLÁT A. ( ): Polyporaceae H ouby chorošovité. Atlas hub evropských, Praha, 3: , tab PLÁT A. et LN D TN ER V. (1938): Ein Beitrag zur K enntnis der Basidiom yceten von Südserbien. Glasn. Skop. Nauč. Druš. 18: POUZAR Z. (1966): Studies in the taxonom y of the polypores. Folia Geobot. Phytotax. Boliemoslovaca, Praha, 1: POUZAR Z. (1984): N otes on four European polypores. čes. Mykol., Praha, 38: SO UK UP F. (1981): Příspěvek k poznání dřevokazných chorošů státní přírodní rezervace Chejlava na Nepomucku. Zpr. Muz. Západočes. Kraje-Přír., Plzeň, 24: 3 7. Addresses of the authors: RNDr. František Kotlaba, CSc., Botanický ústav ČSAV, Průhonice, ČSSR, and Zdeněk Pouzar, CSc., Národní museum, tř. Vítězného února 74, Praha 1, ČSSR. 136

11 New or less known Discomycetes. XV. Nové nebo méně známé diskomycety. XV. M irko Svrček Ten new species of Discom ycetes according to the material collected in Czechoslovakia are described: Arachnopeziza, depauperata, Belonidium lizonii, H ym enoscyphus angustisporus, Lachnum tenuipilosum, M ollisia polytrichicola, M ollisia potentillae-erectae, Pseudombrophila fettneri, Sclerotinia atrostipitata, Vnguicularia aconiti, Unguicularia iridia. One new genus, Niveostoma, for Dasyscypha leucostoma Rehm is proposed. Je popsáno deset nových druhů diskom ycetů podle materiálu z území československá: Arachnopeziza depauperata, B elonidium lizonii, Hym enoscyphus angustisporus, Lachnum tenuipilosum, M ollisia polytrichicola, M ollisia potentillae-erectae, Pseudomrophila fellneri, Sclerotinia atrostipitata, Unguicularia aconiti, Unguicularia iridia. Je vystaven nový rod Niveoatoma pro Dasyscypha leucostoma Rehm. Arachnopeziza depauperata sp. nov. Apothecia mm diam., subiculo paupero insidentia, late sessilia, interdum basi subangustato sessilia, orbicularia vel irregulariter angulata, granuliformia, pure alba, molliter ceracea, viva subnuda sed sicca extus brevissime denseque albopilosuia, non pellucida, absque margine distincto, disco piano usque convexo, vivo pruinoso, sporis ascis liberantibus pilosulo. Subiculum tantum ex hyphis laxe intricatis, ecoloratis, pertenuibus in superficie substrati praesens. Excipulum ecoloratum, e cellulis parte basali usque ad 9 X 7 xm magnis, angulatis, tenuiter tunicatis, marginem versus elongatis, usque ad 2 4 xm latis, vi solutione Melzeri haudcoloratis. Pili ( 60) X (1 ) fxm, filiformes, plus minusve flexuosi, inaequaliter crassi, apice obtusi vel obtuse-dilatati, (1 2 fxm), tenuiter tunicati, nudi, hyalini, septis haud distinctis. H yphae subiculi [xm, saepe inaequaliter crassae, usque gibbosae, parietibus subinerassatis, firmae, ramosae, rem ote septatae, hyalinae. Asci X 8 10 fxm, crasse clavati, apice obtuse angustati, poro fxm lato, amyloideo instructi, basi breviter crasseque stipitati, 8-spori, sporis fasciculatis. Paraphyses xm crassae, basi ramosae, apice usque ad 2.5 xm parum dilatatae, rectae saepeque guttulis impletae, hyalinae. Ascosporae x xm, filiformes, rectae vel subrectae, basi attenu atae, ecoloratae; septa nulla observata. H a b i t a t ad ram um deiectum Tiliae. B o h e m ia m e r id io n a lis : Horní Ostrovec prope čim eliee, ad marginem silvae Třebošov supra vallem rivi Lomnice, 30. V leg. M. Svrček (holotypus, PRM). Fresh apothecia of this Arachnopeziza growing on bast of a fallen twig of Tilia are alm ost smooth w ith the disc finely hairy by the needle-like ascospores emerging from asci, but bearing distinctly visible short hairs near the margin only when dried. The subiculum is formed of white, very delicate and laxy interwoven, cobweb-like hyphae easily overlooked on th e substrate. The species is closely related to Arachnopeziza delicatula Fuckel (K orf 1951) from which it is distinguished by apothecia less th an 0.5 mm in diam eter, scanty subiculum, very thin hairs and more narrower ascospores. Arachnopeziza corcontica Vel. (Velenovský 1934) seems to be according to the original description similar. t is described as having apothecia 1 mm in diam eter, and smaller (20 30 X 1 xm), often flexuouse, distinctly septate ascospores. No m aterial of this Arachnopeziza exists in PRM. 137

12 Č e s k á m y k o l o g i e 42 (3) i% 8 ^ v í ', p i i n p í l l É ë o C ' j w U J M «f i., A ' 3 r 1 1 í S i l i í u % * : 1 m f i Y i 7 * lil J li Mmi/íi. ^ i i! ( i ; 138

13 SVKĎKFí: NEW OR LESS KNOW N DSCOMYCETES. X V. tclonidiiim lizonii sp. nov. A pothecia m m diam., gregaria, late sessilia,m argineextusque dense breviter castaneo-pilosa, subcrasse carnosa, disco piano, albido, vulnerato im mutabili. Excipulum ectale e basi ad marginem usque e cellulis 5 15 xm diam., vel etiam 19 x 13 xm magnis, subisodiam etricis, fere globosis vel irregulariter angulatis, in strato pallide brunneis, singulariter subhyalinis, tenuiter tunicatis, parietibus pig- m ento m em branaceo pallide castaneo frequenter incrustatis, vi solutione Melzeri atque in solutione alcalino (KOH) im m utabilibus. Medulla (excipulum intem um ) hyphis longe cylindraceis, xm crassis, tenuiter tunicatis, hyalinis, ramosis, dense intricatis. Pili X xm, e cellulis superficialibus excipuli obscure brunneo- coloratis crescentes, cylindracei, recti, basi haud d ilatati vel solum parum crassiori, apice obtusi vel obtuso-angustati, 4 6 septis tenuibus instructi, tenuiter tunicati, pallide brunnei, ad superficiem totam sparse crystallis vel granulis m inutis (rarior maioribus) tecti. n solutione Melzeri pili decolorantur atque nudi apparent, ops nulla in solutione alcalino. Asci x 6 xm, cylindracei, apice obtuse conico-angustati, basi breviter H crasseque stipitati, 8spori, sporis distich is, poro xm diam., in solutione Melzeri usque vim solutionis K O H distincte amyloideo (fortiter coerulescente). Paraphyses xm crassae, apice acute vel subobtuse lanceolato-angustatae, 8 12 xm ascos superantes, septatae, guttulatae, copiosae. Ascosporae 8 16 ( 17.5) X (1.3 ) xm, anguste fusiformes, plerum que subcurvatae usque arcuatae, semper guttulis plurimis inaequaliter magnis im pletae, hyalinae. H a b i t a t ad caules emortuos Artemisiae vulgaris. S lo v a c ia o cc id e n ta lis : Bratislava, in horto privato dom. Dr. Pavel Lizoň, 230 m s. m., VT leg. P. Lizoň (holotypus PRM, paratypus BRA). Tt is ra th e r easily distinguished from other members of the genus Belonidium M ont. et Dur. em. R aitviir (1970) by the densely clothed apothecia w ith brown, thin-w alled, cylindrical hairs covered w ith scattered crystals and granules, whitish disc as well as rath er long ascospores filled with numerous guttules. The brown pigm ent rem ains with no change in K O H solution, but in Melzer s reagent brown pigm ent and crystals on th e hairs dissolve, so th a t they are then sm ooth and almost colourless. llyinenoseypluis ancjustisporus sp. nov. Apothecia mm diam., gregaria, cyathiform ia, dein patellaria, denique explanata usque convexa, irregulariter orbicularia, m argine angusto flexuoso dein nullo, ceracea, subtus semper distincte ten u iter breviter stip itata, stipite radium thecii aequanti vel breviori ( mm), extus subtiliter tom entosa vel pulveraceo- -fibrillosa, to ta pallide luteola usque albida, disco pallidissime vitellino, vulnerato im m utabili, sicco obscure vitellino, stipite concolor, unacum parte exteriori pallido Arachnopeziza depauperata Svr. (holotype). Hairs, marginal part of ectal excipulum (1), asci, paraphyses, ascospores (2), three apothecia, subieular hyphae (3) Belonidium lizonii Svr. (holotype). Hairs, excipular cells partly encrusted with brown pigment, hyphae of medullary excipulum, apothecia (4), ascus, paraphyses, ascospores (5) Lachnum tenuipilosum Svr. (holoty]»). Hairs, asci, paraphyses (6), two apothecia. ascospores (7). 8. Hymenoscyphus angustisporus Svr. (holotype). Four apothecia, asci, paraphyses, marginal part o f ectal excipulum, superficial cells o f the stipe, ascospores. 139

14 ČESKÁ M YKOLOGE 42 (3) 1988 Excipulum parte basali e cellulis ecoloratis, X 6 13 xm magnis, m arginem versus minoribus, elongatis, angustis, hyphis m arginalibus cylindraceis obtusis^ 2 3 xm crassis. Superficies externa excipuli atque stipitis cum cellulis breviter cylindraceis vel clavatis, hyalinis, te n u ite r tunicatis, nudis vel m inute granulosis, 3 7 fxm crassis. Asci X 4 6 xm, subanguste oblongo-clavati, vel cylindraceo-clavati, apice obtusi poro amyloideo, deorsum sensim longius stipitati, 8-spori. Paraphyses xm crassae, apice haud dilatatae, p arte superiore plasm ate oleosa ecolorata impletae. Ascosporae 6 9 X ( 2) xm, subcylindraceae, fusoideo-cylindraceae, plerum que subcurvatae, semper guttulis binis m inutis polaribus instructae. H a b i t a t ad petiolos atque nervos foliorum deiectorum anni praecedentis Aesculi hippocastani. B o h e m ia s e p t e n t r io n a lis : České středohoři, in m onte Březina 690 m s. m. prope M ilešov in fossa secus viam silvaticam 15. X leg. M. Svrček (holotypus l RM). No similar species of Hymenoscyphus or Pezizella is reported from leaves of Aesculus hippocastanum but there are two species occurring on herbaceous stems which could be closely related: Pezizella discreta (K arst.) Dennis differs in the smaller, shortly and thick stipitate white apothecia and ascospores 5 8 X xm large (Dennis 1956). Hymenoscyphus euphorbiae (Vel.) Svr. has apothecia when fresh intensively orange coloured and thin (1.5 xm) paraphyses (Svrček 1985). n Southern Bohemia collected an other similar Hymenoscyphus also on petioles of leaves of Aesculus hippocastanum (Třeboň, in a park, 22. X. 1965), Alnus glutinosa (Třeboň, near the pond Svět, 9. X leg. V. Ježek et M. S.), Populus tremula a n d Salix sp. (Třeboň, a boggy Alder-wood Pram eniště u Jin d rů, X leg. J. K ubická et M. S.) having white, w hitish or yellowish anothecia and narrow ly, eguttulate ascospores. Laclimini tcnuijtilosuiii sp. nov. Apothecia mm diam., gregaria, patellaria, distincte breviter vel longius stipitata (stipite xm crasso), margine extusque to ta albo-pilosa, disco vivo niveo, sicco plus m inusve aurantiaco-rubello vel pallide roseo. Excipulum textura prism atica, hyalina, tenuiter tunicata, hyphae stipitis longe cylindraceae, 2 3 xm crassae. Pili X 2 3 xm, graciles, tenues, anguste cylindracei, recti, apice interdum subangustati sed semper obtusi vel rotundati (numquam dilatati), rem ote tenuiter septati, to ti dense subtiliter granuloso-incrustati (granulis usque ad 0.5 xm diam.), parietibus tenuibus, ecolorati, tantum in apotheciis siccis pallide ferrugineo-brunneoli vel rubro-lutei. Asci ( ) X xm, anguste cylindracei, stipitati, apice obtusi poro m inuto amyloideo (post vi solutionis N H 4OH solum indistincte in solut. Melzeri coerulescente), 8-spori, sporis distichis. Paraphyses lanceolatae, xm crassae, copiosae, longe acutae, usque ad 25 xm longe ascos superantes, hyalinae, nudae. Ascosporae (6 ) 9 12 ( 14) x xm, tenuiter fusiformes, rectae, polis longe atten u atis et saepe acutis, guttulis parvis im pletae. H a b i t a t ad culmos gram inum em ortuorum {Festuca sp., Stipa spp.) locis stepposis aridis. B o h e m ia c e n tr a lis : Praha 5 Nová Yes prope B utoviee, in valle Prokopské údoli, Festuca sp., solo calcareo insolato 10. V leg. M. Svrček (holotypus, PRM). České středohoři (Bohemia septentrionalis), mons Raná (457 s. m.), in declivitate moridionali stepposo solo basaltico, Festuca sulcata, S tip a capillata, S. ioannis 25. V et2. V leg. J. Klán; ibidem, in colie Brník (424 m s. m.), Stip a ioannis 30. V teg. J. Klán.

15 SVRČEK: NEW OR LESS KNOW N DSCOMYCETES. X V. The very narrow, obtuse or slightly attenuated hairs (never enlarged!) and thin, narrow ly fusiform ascospores are distinctive characters of this graminicolous Lachnum. Unlike Lachnum contr over sum (Cooke) Rehm, commonly occurring on Phragmites in swamps, the species described above grows on various xerothermie grasses on dry places. Dasyscyphus carneolus var. longisporus Dennis (1949) appears to be the same as Lachnum elongatisporum Baral (nom. nud., 1986). The name longisporus cannot be use because already Lachnum longisporum K arsten exists. Lachnum sagarum Vel. (1934), lectotypus PRM : Slovacia, Vysoké T atry Mts., 1600 m s. m., ad culmos gram inum V leg. Alb. Pilát, det. J. Velenovský, has the hairs distinctly enlarged (3.5 6 xm) a t their apices as well as long ascospores X xm. Mollisia polytrichicola sp. nov. Apothecia mm diam.. sparsa, sine subiculo, late sessilia, disciformia, irregulariter orbicularia, absque m argine distincto, disco piano dein convexo, pallide coeruleo-griseo, extus m arginem que nuda, pallide fusca. Excipulum ectale tenue, e cellulis 5 10 fxm diam., globosis vel obtuse angulato- -globosis, parietibus xm crassis, obscure fusco-coloratis, margine integro, cellulis m arginalibus globosis 5 9 xm diam., saepe apice vel parte superioři strato pigmento fusco incrustatis. Pars basalis excipuli ut annulus xm latus, e cellulis elongatis, irregulariter flexuosis lobatisque, obscure fuscis, 2 4 xm latis, form ats. Asci X 7 10 xm oblongo-clavati, apice angustato-obtusi, deorsum plerumque crasse breviterque stipitati, sed etiam cum stipite longiori, 8-spori, sporis partim distichis, poro amyloideo. Paraphyses xm crassae, basi ramosae, apice rectae vel paulum flexuosae, non dilatatae vel subincrassatae, plasma oleacea impletae, ecoloratae. Ascosporae x xm, obtuse inaequaliter fusiformes, rectae vel subrectae, medio cum pseudosepto distincto, ecoloratae. H a b i t a t in parte inferiore caulis musci vivi Polytrichum formosum Hedw. B o h e m ia c e n tr a lis : Praha 4 K lánovice, silva Vidrholec, 7. X leg. M. Svrček (holotypus PRM). Only scanty m aterial of this interesting Mollisia has been found. The characters are so distinctive th a t consider it a species of its own and very different from all other discomycetes till known on Polytrichum, e. g. M ollisia polytrichi Rehm, Durella epibrya (K arst.) Dennis, Patinella polytrichina (Karst.) Sacc. Mollisia potcnlillae-crcclae sp. nov. Apothecia mm diam., sparsa, gregaria, sine subiculo, late sessilia, non erum pentia, obscure fusca, disco piano, pallide vel obscure griseo, piano, margine angusto, albido, subintegro, parte exteriore obscure cinereo vel cinereofusco, nudo. Excipulum xm crassum, fuscuin, e cellulis 5 10 xm diam., pallide umbrinis, sat tenuiter tunicatis; margo ex hyphis cylindraceis, apice obtusis, seriatim ordinatis, X xm (pars inferior) X xm (apex), unicellularibus usque biseptatis, parietibus tenuibus, nudis, solum parte inferiore pallide brunneis, sursum ecoloratis. Mycelium basale in substrato ex hyphis longis, ramosis, hyalinis, xm crassis, firmis (interdum subcrasse tunicatis). Hypothecm m indistinctum, tenue, ecoloratum, stratum internum excipuli e cellulis subangulatis, tenuiter tunicatis, hyalinis. n solutione Melzeri cellulae atque hyphae marginales excipuli non colorantur. Asci X 4 5 xm, clavati, apice angustato-obtusi, subtus breviter crasseque stipitato-angustati, poro m inutissimo amyloideo, 8-spori, sporis distichis. Paraphyses 141

16 142 0ESK Á MYKOLOGE 42 (3) 1988

17 SVRČEK: N EW OR LESS KNOW N DSCOMYCETES. X V. H H xm, simplices, hyalinae, apice rectae, non dilatatae, aequilongae vel parum (usque ad 5 xm) ascos superantes. Ascosporae 5 8 X xm, anguste cylindraceo-oblongae, rectae vel subcurvatae, cum guttulis binis polaribus. H a b i t a t ad caulem em ortuum deiectum Potentillae erectae ( = P. tormentillae). B o h e m ia m e r id io n a lis : Ražice prope Písek, ad marginem piscinae Režabinee (area tuta) 24. V leg. J. Kubická (holotypus PRM). t is recognized am ongst other Mollisia species occurring on herbaceous stems by the colour of superficial apothecia (not erum pent), the shape of m arginal hyphae and narrow ly cylindrical, biguttulate ascospores. H Pseudombrophila fellneri sp. nov. H Apothecia 4 10 mm diam., gregaria vel fasciculata, basi angustato sessilia, firme carnosa, disco concavo, mox explanato, absque margine distincto, pallide cinereo vel albido, sicco albo-pruinoso, extus m arginem que concolor vel tin ctu brun- neolo, pallide appresse fusco-fibrilloso. Excipulum cellulis subglobosis (12 xm diam.), late ellipsoideis vel elongato- angulatis (usque ad 29 X xm magnis), ten u iter tunicatis, ecoloratis. Pars externa excipuli hyphis copiosis, longis, ramosis, 4 8 xm crassis, crebre strangu- lato-septatis, pallide fuscis, parietibus subincrassatis laxe reticulato-intricatis obducta est. H yphae marginales similes, tenuiter tunicatae, cellula term inali cylindriea vel obtuse conica. Cellulae atque hyphae vi solutione Melzeri rubrobrun- nescentes. Asci X 8 10 xm, cylindrici, apice subtruncati, basi sensim breviter atten u ati, parietibus inamyloideis, 8-spori, sporis monostichis. Paraphyses xm crassae, apice rectae, interdum parum dilatatae, ecoloratae, granulis minutissimis copiosis tectae. Ascosporae X xm, ellipsoideae, polis rotundatis, ecoloratae, g u ttu la unica m agna centrali ( de B ary bubble ), subtiliter denseque verrucosae (verrucis xm altis) et dense reticulatae (areis polygonis irregulariter elongatis, xm latis). H a b i t a t ad folia ramulosque deiectos putridos Quercias petraeae atque ad terram argillaceam granulis CO(NH2)2 (carbodiamidum) conspersam (area experimentalis). H B o h e m ia c e n tr a lis : Český kras, Suchomasty prope Beroun, in Querceto-Carpineto solo calcareo 18. V leg. Dr. Rostislav Follner (holotypus PRM). This is a very distinctive species best recognized by rath e r small ornam ented spores with low w arts and ridges forming partly a fine-meshed reticulum distinctly visible in Cotton-blue under oil immersion. Pseudombrophila guldeniae Svrček [1966; Nannfeldtiella guldeniae (Svr.) Svr. 1981] differs by much larger, strongly w arted spores of another shape as well as by quite different colour of apothecia. The place of grow th of Pseudombrophila fellneri is an experim ental area in a mixed broad-leaves xerotherm ic forest (Quercion pubescenti-peiraeae, ass. Potentillo-Quer- cetum), where Dr. Fellner strewed granules of urea (carbdiamid CO(NH2)2 concentr M ollixia polylrii-hirolit Svr. (holoiype). Two apoihoc a. asous. paraphysos, asoospnros, marginal excipular cells, basal part of ectal excipulum. 2. M ollisia 'potentillae-erectae Svr. (holotype). Two apothecia., asci, paraphyses, ascospores. marginal part of ectal excipulum with marginal hyphae. f. 4. Sclerotinia atrostipitata Svr. (holotype). Onr apothecium, ascospores. marginal part of ectal excipulum (3), asciis, paraphyses, superficial cells and hyphae from the basal p a it of the stipe (4). 5. Pseudombrophila /ellneri Svr. (holotype). Four apothecia, marginal and superficial hyphae of the excipulum, excipular cells, ascus, paraphyses, three ascospores (Cotton blue, oil immersion). M. Svrček del. 143

18 ČESKÁ MYKOLOGE 42 (3) 1988 H Unguicularia aconiti Sví*, (holotype). Two apothecia, hairs, ascus, paraphyses, ascospores. H R 2. TJntjuicnlaria iridia Svr. (holotype). One apothecium, hairs, excipular cells, ascus, paraphy- H ses, ascospores. 3. Niveoatoma leucoatoma (Rehm) Svr. (PRM ). Five apothecia, ascospo- H res, hairs of the margin and exterior part of the excipulum, excipular cells, ascus, paraphysis. H M. Svróek del. 160 g for 0.5 x 1 m) to stim ulate the fructification of fungi. The calcareous, clayey soil, overgrown with only scarce copse of herbs and a few mosses, was th e n covered by a th in layer of fallen leaves and twigs of Quercus petraea. The first apothecia of Pseudombrophila fellneri appeared over the rain period, i. e. 14 days after th e applica- tion of urea, m ainly on leaves and twigs, rarely also on naked soil. While the m anuscript was in the press, two additional collections of P. fellneri cam e to hand, both collected by ng. Jaroslav Landa, viz.: 1. P raha, in the w ood Kláno- vický les (Blatov), Molinio-Quercetum on non-calcareous soil, 10. V and 4. V Praha-H lubočepy, in the wood D alejský háj, Cynancho-Quercetum on calcareous soil, 11. V The apothecia were growing there on fallen leaves of Betula and Quercus, always only in small areas sprinkled w ith urea about two m onths ago (April 17, 1987, and April 15, 1988 according to ng. J. Landa).

19 SVRČEK: NEW OR LESS KNOW N DSCOMYCETES. X V. Sclerotinia atrostipilata sp. nov. Apothecium 2 mm diam., patellare, subtus in stipitem 4 mm longum, 0.5 mm crassum attenuatum, disco pallide brunneolo, parte exteriore concolor, nudo, laevi, sicco albo-pulveraceo, stipite usque ad 2/3 longitudine sursum subatro, m inute tom entoso, sclerotio 2 mm diam., subgloboso, pleno, nigro, intus albo. Excipulum e cellulis globosis vel subglobosis, usque ad 14 ;xm diam., pallide brunneolis, tenuiter tunicatis, cellulis marginalibus clavatis X 6 10 xm magnis, ecoloratis, nudis. Medulla sclerotii amyloidea (in solutione Melzeri griseocoerulescens). S tratum externum stipitis parte basali nigro-colorati ex hyphis fusco-coloratis, septatis, 3 5 xm crassis atque cellulis globosis vel pyriformibus, castaneo-brunneis, usque ad 20 xm magnis, parietibus xm incrassatis. Medulla stipitis alba, ex hyphis filamentosis, 3 5 xm crassis, parallelis, firme intricatis, crystallis acute angulatis, hyalinis, usque ad 20 xm magnis farcta. Asci X 8 9 xm, cylindracei, apice rotundati et incrassati, basi subcrasse stipitiform iter attenuati, poro xm longo, xm lato, fortiter amyloideo, 8-spori, sporis monostichis. Paraphyses xm crassae, filiformes, apice rectae, non dilatatae, ecoloratae. Ascosporae X xm, inaequaliter oblongoellipsoideae, ovato-ellipsoideae, eguttulatae, laeves, hyalinae. H a b i t a t inter rhizoidea caulium vivorum musci Ceratodon purpureus (Hedw.) Brid. B o h e m ia c e n t r a lis : Praha 3 Žižkov, in borto meo ubi Ceratodon lectus et domo in olla cum Evonym o radicante cultus erat, apothecium unicum cl. M. Svrčková invenit (holotypus PRM). For the m ost part the blackish, tom entose stipe is the main distinctive character of this small Sclerotinia arising singly from the free, m inute, black sclerotium a t tached to the rhizoids of living stems of the moss Ceratodon purpureus. Sclerotinia incondita (Ellis) Sacc., described inter muscos in paludibus Americae borealis (Saccardo 1889) is according to Seaver (1951) and K ohn (1979) a doubtful species ; it has 4-spored asci and apothecia 3 6 mm in diam eter. Dennis (1956) noted a British find of a Sclerotinia sp. having blackish stipe, on dead stem s of Filipéndula ulmaria. Unguicularia aconiti sp. nov. Apothecia mm diam., sparsa, plana, im m arginata, late sessilia, denique convexa, orbicularia, molliter carnosa, oculo nudo glabra, pallide tnelleo-flavida. Excipulum e cellulis ecoloratis, usque ad 13 xm diam., parte basali late ellipsoideis vel subglobosis, marginem versus minoribus, subangulatis, marginalibus cylindraceo-elongatis, ten uiter tunicatis, non dextrinoideis nec amyloideis. Pili X 3 5 xm, singulares, e basi dilatata sensim conico-attenuati, apice obtusi vel subacuti, saepe irregulares, subcurvati, parte basali tantum tenuiter tunicati, pili ceteri crasse tunicati lumine nullo, ecolorati, lucem frangentes, vi solutione Melzeri amyloidei (distincte griseocoerulescentes). Asci x 8 11 xm, crasse clavati, apice rotundati, basi breviter crasseque stipitati, poro inamyloideo, 8-spori, sporis distichis. Paraphyses xm crassae, simplices, apice rectae, non dilatatae, obtusae, ascis aequilongae, hyalinae. Ascosporae x xm, late oblongo-ellipsoideae, polis rotundatis, medio distincte uniseptatae, ecoloratae, in solutione Melzeri tin ctu flavido. H a b i t a t ad eaules emortuos anni praeteriti herbae Aconitum firmurn subsp. firm um. 145

20 - ČESKÁ MYKOLOGE 42 (3) 1988 S lo v a c ia c e n tr a lis : m ontes Nízké Tatry, Březno nad Hronom, in convalle Trangoška, cca 1200 m s. m., in zona P in i mugonia solo calcareo 6. X leg. M. Svrček (holotypus PRM). Some resemblance exists between the discomycetc described above and species of the genus Chaetonaevia v. Arx (Svrček, 1976, 1982) having the same shape of hairs, but erum pent apothecia. The main difference consists in the am yloidity of the hairs in Unguicularia, but the tru e affinity between both genera is som ewhat obscure. Unguicularia iridis.sp. nov. Apothecia xm diam., sparsa, hemisphaerica, ad superficiem foliorum late sessilia, orbicularia, subhyalina, pellucida, sicca pallide lutea, succineo-flava usque tin ctu fusco, disco plano, im m arginato, nuda (oculo non arm ato observata). Excipulum e cellulis 5 13 X 3 8 xm magnis, subisodiametricis, angulatis, tenuiter tunicatis, ecoloratis, non dextrinoideis, pilis m arginalibus dense seriatim ordinatis, breviter conicis, xm longis, parte basali 4 7 xm crassis, sursum sensim angustatis, apice obtuso atque saepe pigmento luteofusco vel ferrugineo incrustato, ecoloratis, crasse tunicatis absque lumine (basi solum tenuiter tunicatis), lucem frangentes, vi solutione Melzeri distincte amyloideis (griseocoerulescentibus). Asci X xm, crasse clavati, apice late rotundati, deorsum brevissime crasseque attenuati, poro xm diam., usque vim solutionis K O H in solutione Melzeri fortiter coer ules cente, 8-spori, sporis distichis. Paraphyses copiosae, filiformes, apice saepe ramosae flexuosaeque, xm crassae, hyalinae. Ascosporae x xm, oblongo-fusiformes, polis obtuso-attenuat.ae, intus saepe cum guttula única magna, medio uniseptatae, hyalinae. H a b i t a t ad folium em ortuum ridis pseudacori. B o h e m ia m e r id io n a lis : Třeboň, in pratis uliginosis madidis Mokré louky dictis haud procul písčinám magnam Rožmberk 2. VH leg. J. Kubická (holotypus PRM). This very m inute discomycete is similar to Naevioideae, b u t apothecia are superficial, not erum pent, and hairs are amyloid. The relatively large pore turned deep blue in Melzer s reagent only after pretreatm ent in K O H solution. Niveostoma gen. nov. (Hyaloscyphaceae) Apothecia sessilia, longe globoso-clausa, extus dense obscure brunneo-tomentoso- -pilosa, dein perm anenter urceolaria vel profunde cupularia, ore parvo conspecte albom arginato dehiscentia. Pili marginales ecolorati, cylindracei, recti, septati, tenuiter tunicati, pili superficiales longe filiformes, flexuosi vel arcuati, parietibus incrassatis, vi solutione alcalino (KOH) viridescentes vel brunneorubescentes. Excipulum obscure coloratum, parte basali e cellulis globosis, m arginem versus elongatis, pigmento membranáceo dextrinoideo incrustatis. Asci subcylindracei, paraphyses filiformes, ascos non superantes, ascosporae angustae, unicellulares, ecoloratae. H a b i t a t ad residua plantarum em ortua. T y p u s g e n e ris : Dasyscypha leucostoma Rehm, Ber. N aturh. Ver. Augusburg 26: 53, Species única adhuc nota: Niveostoma leucostoma (Rehm) Svrček, comb. nov. Basionymum: Dasyscypha leucostoma Rehm, Ber. N atu rh. Ver. Augsburg 26: This very characteristic discomycete is rath er different from other genera of Hyaloscyphaceae. The shape of apothecia is similar to Olla Vel. (1934) by its globose, 146