L. Hably szerk.: Studia Botanica Hungarica 20. 1988 (Budapest, 1988)

Révay, Ágnes: Dematiaceous Hyphomycetes inhabiting forest debris in Hungary III.

Brachysporium brevius Hol.-Jech. - Folia geobot. phytotax. 7:222, 1972. (Fl. I, Figs 1-2) Conidiophores erect, simple, single, dark-brown, smooth, 60-150jam long, 3.5-4/im thick at the base, 3-3.5/im thick in the middle part, paler towards the apex, proliferating, with small sporogenous denticles. Conidia ellipsoid or cylindrical, 3-septate, brown, 20- 24 x 9- 12.5jum. HOLUBOVÁ-JECHOVÁ (19 72) described this species from Czechoslovakia based on a single collection on rotten wood of Fagus sylvatica

. The present collection differs slightly from the holotype in its longer conidiophores (55-135/im in the holotype) and in somewhat longer conidia (17.5-22.5>im in the holotype). In most of my material there are long upper conidiogenous parts in zig-zag arrangement with very distinct rests of sporogenous pedicels. These differences are interpreted as being the result of better conditions for sporulation. The present collection appears to represent the first record of B. brevius since its description. - Collected on dead bark of Fagus sylvatica

, near Rejtek in the Bükk Mts, 26 August, 1986. Cheiromycella microscopica (Karst. ) Hughes - Can. J. Bot. 36: 747, 1958. (Pl. II, Fig. 4) Sporodochia punctiform, brown. Conidiophores short, branching, pale-brown. Conidia aggregated in slimy masses, simple or branching, cheroid, golden brown, 8-20 x 3-6.5 jam, branches 1-5-septate. This species is represented in the BP in two collections, including the present one from Hungary. - Collected on dead wood of Picea abies

, at Szelcepuszta in the Aggtelek National Park, 15 July, 1987. Corynesporopsis uniseptata P. M. Kirk - Trans. Br. mycol. Soc. 77:463, 1981. (Pl. I, Figs 3-4) Conidiophores usually fasciculate, erect, straight, brown, 100- 190/im high, 3-4.5yum wide. Conidia acrogenous, shortly catenate, ellipsoid, sometimes the apical end obtuse, 1- septate, constricted at the septum, brown, with darker thick septum, 11.5-16 x 5-1.5jam KIRK (1981) described this species from Cornwall, U.K. based on a single collection on dead leaves of Laurus nobilis

. The present collection differs slightly from the holotype in its somewhat longer conidiophores. To the best of my knowledge this collection represents the second record of this species. - Collected on dead bark of Fagus sylvatica, near Barna in the Mátra Mts, 14 May, 1987. Dendryphion comosum Wallroth - Fl. crypt. Germ. 2:300, 1833. Conidiophores branching at the apex, 100-400 x 5-7.57um. Conidia cylindrical, usually 2- 4-septate, constricted at the septa, pale-brown, minutely verruculose, 10-35 x 5-8/im. Dendryphion comosum was reported from Hungary on three occasions by MOESZ (1942), VASS and TÓTH (1963) and VASS (1981). - Collected on dead wood, near Ómassa in the Bükk Mts, 27 March, 1986. Endophragmiella lignicola S.J. Hughes - N. Z. Jl. Bot. 17: 151, 1979. (Pl. II, Fig. 2) Conidiophores single or in groups, erect, simple, straight or flexuous, subcylindrical up to 80yum long 3-4jum wide, at the base 6yum wide. Conidia solitary, ovoid to obclavate, 2-septate, the central cell is the largest, dark-brown, the basal cell truncate and subhyaline, the apical cell obtuse at its end, hyaline, 14-19 x 4.8-6jum. This species is widespread in the British Isles (KIRK 1986) and is known from Argentina (GAMUNDI et al., 1979).

Endo- phragmiella lignicola had hitherto been unknown in Hungary. - Collected on cupules of Quercus cerris from a tree-hollow, near Bak in Zala County, 9 September, 1986. ; on dead cupules of Quercus sp

. near the stream Szén-patak in the Börzsöny Mts, 10 March, 1987. Endophragmiella oblonga (Matsushima) Hughes - N. Z. Jl. Bot. 17:152, 1979. (Pl. III, Fig.

4) Colonies effuse, dark-brown. Conidiophores arising singly or in groups, erect, unbranched, straight or slightly flexuous, brown, 180-280 x 4-5/im, 6-8/im thick at the base. Conidia solitary, ellipsoidal, (l-)2-septate, pale-brown, the central cell slightly darker, 21- 32 x 9.5-12yum, with a hyaline frill l-2jum long. Beside the original collection from Japan (MATSUSHIMA 1975), Endophragmiella oblonga has only been reported from Czechoslovakia (HOLUBOVÁ-JECHOVÁ 1986). This is the first record of E. oblonga from Hungary. Collected on submerged twigs of Fagus sylvatica

, from the stream Szén-patak in the Börzsöny Mts, 14 January, 1986; 3 June, 1987. Endophragmiella similis Hol.-Jech. - Folia geobot. phytotax. 21: 189, 1986. (Pl. IV, Fig. 2) Colonies effuse, dark-brown. Conidiophores crowded, simple or sometimes shortly