A N N A L E S H I S T O R I C O - N A T T J R A L E S M U S E I N A T I O N A L I S H T J N G A R I C I

T o m u s 67 . B u d a p e s t 1975.

Some New Microscopic F u n g i , I I I .

by S. T Ó T H , Gödöllő

Abstract — D e s c r i p t i o n o f Pleosphaerellula fumanae s p . n . a n d Cordana crassa s p . n . f r o m d r y t w i g s o f Fumana procumbens ( DUN . ) G R . e t GODR . a n d f r o m r o t t e n w o o d o f Fagus süvatica L . , r e s p e c t i v e l y . Ceratocystis horanszkyi TÓTH i s t r a n s l o c a t e d i n t o t h e g e n u s Sphaeronaemella. W i t h 4 f i g u r e s .

Pleosphaerellula fumanae sp. n. (Fig. 2)

Peritheeia nigra, carbonacea, cca 150—180 ^ m diam., plus-minus depresse globosa, in rimis transversalibus corticis ad lignum singillatim vel in seriebus bre-vibus vel in gregibus laxis disposita, ostiolo vix conspicuo, glabra. Asci pauci, elongatosaccati, pro ratione sat tenuiter tunicati, apice leniter incrassati, sine apparatu speciali apicali, 35—44x10—12,5 u,m, subtus non pedicellati, primarie polyspori, sporis perfecte repleti, paraphysibus initio crassis, simplicibus vel mo-dice ramosis, ascos superantibus, serius deliquescentibus circumvallati. Sporae hya-linae vel parum flavidulae, elongate ellipsoideae, aseptatae, (3—)3,6—4,5(—6,2) x X ( l , 6 — )1,9—2,2(—2,5) iim.

T y p u s : N o . 8778. M a t r i x : Fumana procumbens (DUN . ) G R . e t GODR . , i n r a m u l i s e m o r t u i s p r a e s e r t i m t e n u i o r i b u s . P r . p a g . S z i g e t c s é p , i n s u l a C s e p e l s z i g e t f l u m i n i s D a n u v i i , h a u d p r o c u l u r b i s B u d a p e s t , H u n g á r i a 9. V I . 1959. l e g . S. TÓTH I n h e r b a r i o S e c t i o n i s B o t a n i c a e , M u s e u m H i s t o r i c o - n a t u r a l e H u n g a r i c u m , B u d a p e s t , H u n g á r i a .

The genus Pleosphaerellula described by N . NAUMOV and N . P. C Z E R E P A N O V A in 1952 and ranged by them within the Mycosphaerellaceae is characterized especially by the stubby, roughly cylindrical asci, having a number (256) of spores. According to these authors, no paraphyses can be found in the peritheeia, as i t mentioned by them in the diagnoses of both the genus and the only species. According to my findings from among the peritheeia of the new species in the younger ones I often clearly saw, some well-developed, bulky, thread-like paraphyses which could not be seen in the older peritheeia considered to be fully mature. For the description of the two authors the material of two gatherings served as base. Following similar cases i t can be supposed that they only studied well-developed peritheeia on their materials, thus, they could not see the paraphyses, though entire in the not fully ripe peritheeia.

The spores of the new species, by means of their size and form, show a well-definable difference from those of the type species. Their number is primarily great, i.e. they did not proliferate through 8 ascospores. The ostiolum of peritheeia here is also hard-observable.

Ann. Hist.-nat. Mus. Nat. Hung., 67, 1975

I succeeded in collecting the new species on a good number of occasions, relatively, but only in a small quantity, in general. Almost on every occasion I could find i t when I studied the microfungi on the dry twigs of Fumana procumbens. Enumeration of other gatherings:

M a t r i x : Fumana procumbens (DUN,) G R . e t GODR. — o n d e a d t w i g s , l e g . S. TÓTH, — 8 7 7 9 . P r . p a g . B u d a ö r s , h a u d p r o e u l u r b i s B u d a p e s t , H u n g á r i a 2 9 . V . 1 9 5 9 . — 8 7 8 0 . P r . p a g . S z i g e t c s é p , i n s u l a C s e p e l s z i g e t , h a u d p r o e u l u r b i s B u d a p e s t , H u n g á r i a 18 . I X . 1 9 5 9 . — 8 7 8 1 . I n i n s u l a S z e n t e n d r e i - s z i g e t p r . o p p . S z e n t e n d r e , H u n g á r i a 2 5 . V I I I . 1 9 6 0 . — 8 7 8 3 . I n i n s u l a S z e n t e n d r e i - s z i g e t , e t c . 6 . I . 1 9 6 1 . — 8 7 8 2 . I n i n s u l a S z e n t e n d r e i - s z i g e t , e t c . 1 . X I I . 1 9 6 1 . — 8 7 8 4 . A d B u g a c p r . p a g . J a k a b s z á l l á s , h a u d p r o e u l o p p . K e c s k e m é t , H u n g á r i a 1 9 . V . 1 9 6 4 . — 8 7 8 5 . I n i n s u l a S z e n t e n d r e i - s z i g e t , e t c . 2 8 . I I I . 1 9 6 8 . — 8 7 8 7 .

I n m t e . T a m á s h e g y p r . p a g . B a l a t o n a r á e s , H u n g á r i a 2 7 . I X . 1 9 6 8 . — 8 7 8 6 . P r . p a g . C s é v l i a r a s z t , H u n g á r i a 1 6 . V . 1 9 6 9 . — 8 7 8 8 . P r . p a g . V e r e s e g y h á z , H u n g á r i a 18 . V I I I . 1 9 6 9 . — 8 7 8 9 . I n m t e . S a s h e g y u r b i s B u d a p e s t , H u n g á r i a 9 . V I . 1 9 7 1 . l e g . S. TÓTH e t A . HORÁNSZKV — 8 7 9 0 . I n m t e . C s ő v á r i h e g y p r . p a g . C s ő v á r , H u n g á r i a 1 4 . V I I I . 1 9 7 3 . — 8 7 9 1 . I n c o l l e K á l v á r i a d o m b p r . p a g . D u n a h a r a s z t i , H u n g á r i a 3 1 . V . 1 9 7 3 . — 8 7 9 2 . I n o p p . G ö d ö l l ő , H u n g á r i a 1 5 . V I . 1 9 7 4 .

F i g . 1 . Cordana crassa s p . n . : o o n i d i o p h o r e a n d c o n i d i a

Cordana crassa sp. n. (Figs. 1, 3—4)

Mycelium septatum, plerumque submersum, tenue, inconspicuum. Conidio-phorabrunnea, plerumque ex agglomeratione minuta hypharum orta, parce septata (septis4—10), erecta, recta vel inclinata, simplicia, cca 140—240 \xm alta, singularia vel parum caespitosa, ad basin plerumque parum dilatata, versus apicem plus-minus aequaliter cca 6-7 u,m crassa, loculo apicali pallidiore, parum inflatulo, capi-tulum e 3—8 conidiis compositum gerenti. Conidia ovata, brunnea — olivaceobrun-nea, prope apicem septo unico transversali saepissime atrobrunneo et ligamenti-f or m iter dilatato, plerumque in loculis guttulis singulis pallidioribus magnis, sub-

tus hilo plus-minus protuberanti, plerumque conspicuo, pro ratione lato (cca 4-—7 u,m), in parte superiore cellulae apicalis conidiophori plerumque conspicue dilatata aero- et pleurogena, post disiunctionem vestigia annuliformia singula relinquen-tia, 20—24 (—28,5) X 13—15 u.m.

T y p u s : N o . 8772. M a t r i x : Fagus silvatica L . : i n l i g n o p u t r i d o . I n v a l l e M á r v á n y k ő -á r o k ( s e u M á r v á n y v ö l g y ) , p r . p a g . B a k o n y k o p p á n y m o n t i u m B a k p n y , H u n g á r i a 29. V I I . 1960. l e g . S. TÓTH . I n h e r b a r i o S e c t i o n i s B o t a n i c a e , M u s e u m H i s t o r i e o - n a t u r a l e H u n g a r i -c u m , B u d a p e s t , H u n g á r i a .

Mycelium immersed. Stroma none. Setae and hyphopodia absent. Conidio-phores macronematous, mononematous, erect, straight or flexuous, brown, un-branched, smooth, solitary or clustered a lit t le, up to 240 [xm long, 6—7 u.m thick, often swollen at the base, sparingly septate, apically with a compact conidium-head. Conidiogenous cell polyblast'ic, integrated, terminal, sympodial, clavate, wi th scars corresponding to the hilum of the conidia. Conidia solitary, pale to dark brown, smooth, ovoid, near the apex 1-septate, mostly with a thick, dark band at the septum, 20—24 (—28,5) x 13—15", m.

The new species differs from Cordana pauciseptata P R E U S S , the type species of the Cordana genus, by the size and of the wide hilum of its conidia, and to some extent, its dissimilar form as well. On the apical cell („conidiogenous cell") of the conidiophore I could not observe any in young state perhaps observable denticula after the abscission of the conidia, but only scars, i.e. ring-like edges, protruding from the surface and agreeing with the hilum of the conidia. This deviation seems me to be reasonable : there is a bigger conidium, a wider hilum, an even shorter or, more correctly (?) missing denticulum on the conidiogenous cell. I t is worthwhile remarking that I did not succeed in observing denticula on the conidiogenous cells after the fall of conidia on a material originated from Congo (Africa), and three from Hungary, qualified undoubtedly as Cordana pauciseptata P R E U S S .

I s u c c e e d e d i n f i n d i n g t h e Cordana crassa s p . n . o n c e m o r e : No. 8773 . I n l i g n o e m o r t u o . I n v a l l e C u h a v ö l g y p r . p a g . Z i r c m o n t i u m B a k o n y , H u n g á r i a 6. X I . 1962. l e g . S. TÓTH.

Sphaeronaeniella horánszkyi (TÓTH ) comb. n.

B a s i o n y m . : Ceratocijstis horánszkyi TÓTH , A n n . H i s t . - n a t . M u s . N a t . H u n g . , 1963, 5 5 : 1 8 2 — 1 8 3 .

The species Ceratocystis horánszkyi described by me in 1963 does not belong to the Ceratocystis genus. I t differs from that by its peritheeia which are light coloured, has not more than a cartilaginous substance in its dry state as well, and has an elastically soft substance in its wet state. These features are characteristic, however, for the Sphaeronaemella K A R S T , genus only, so I had to translocate this species here, from genus Ceratocystis E L L . et H A L S T . I should like, in addition, to remark that I did not yet succeed in finding this species anew, after its first recovery.

A u t h o r i s i n d e b t e d t o Z s . BÜNKÉ ( B o t a n i c a l D e p a r t m e n t , H u n g a r i a n N a t u r a l H i s t o r y M u s e u m , B u d a p e s t ) f o r t h e f i n e a n d c a r e f u l i n k i n g o f f i g u r e c o n t a i n e d i n t h i s p a p e r .

3 Természettudományi Múzeum Évkönyve 1975.

F i g s . 2 — 4 . — 2 = Pleosphaerellula fumanae s p . n . : a s c i w i t h p a r a p h y s e s . — 3 — 4 = Cordana crassa s p . n . : c o n i d i o p h o r e s a n d c o n i d i a .

References

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CZKREPAXOVA, X . I \ & IVUZXETZOVA, L . S. (1952) : Fungi in Cornus. - Not. Syst. Sect. Crypt. Inst. Bot. V. I . Komarocii Acad. Sei. URSS., 8: 1 4 8 — 1 6 3 .

E L L I S , M . B . ( 1 9 7 1 ) : D e m a t i a c e o u s H y p h o m y c e t e s . — K e w , S u r r e y , p p . 608 . HUGHES , S. J . (1955) : M i c r o f u n g i , I . C o r d a n a , B r a c h y s p o r i u m , P h r a g m o e e p h a l a . — Can. J.

Bot., 33: 2 5 9 — 2 6 8 . TÓTH , S. (1963) : D a t a t o t h e k n o w l e d g e o n t h e c o p r o p h i l o u s m i c r o s c o p i c f u n g i i n H u n g a r y ,

I . — Ann. Hist.-nat. Mus. Nat. Hung., 55: 1 8 1 — 1 8 5 .

Author's address: D R . S . T Ó T H

Botanical Department University of Agrarian Sciences H-2103 Gödöllő Hungary