L. Hably szerk.: Studia Botanica Hungarica 18. 1985 (Budapest, 1985)

Révay, Ágnes: Dematiaceous Hyphomycetes inhabiting forest debris in Hungary I

branches of Fagus silvatica (TÓTH 1975a) and the species of Cordana boothii Ellis (ELLIS 1976) is undoubtedly identical with Tóth'

s species. It has been found on two occasions in Hungary since its first collection. - Found on dead twigs of Alnus glutinosa

, near the stream Morgó-patak, Börzsöny Mts, 14.9.1984. Cordana pauciseptata Preuss. Conidiophores simple, dark brown, 120-190 x 4-7 yum, with short denticles on its tip. Conidia dark brown, 8-11.5 x 4-6.4 jum, with 1 very dark and thick septum. This is a very common species on the wood and the bark of deciduous trees and conifers. It has also been sometimes found on animal dung. - Found on dead branches of Fagus silvatica, in the valley Hór-völgy near Oszla, Bükk Mts, 2.6.1982; Odor-hegy, Bükk Mts, 29.6.1984. Corynespora proliferata Loerakker. Colonies on natural substrate effuse, bright, velveti. Conidiophores solitary, erect, straight, mid-brown, 90-120 jum long, 7-10 jum wide. Conidia obclavate pale or dark brown, up to 18-pseudoseptate, 80-500 x 8-12 jum. It is a rare species, had not been found previously in Hungary. - Found on dead branches of Fagus silvatica

, in the valley Ablakoskovölgy, Bükk Mts, 4.6.1982. Cryptocoryneum condensatum (Wallr.) Mason et Hughes (Pl.I. Fig. 4.). Sporodochia pulvinate, dark brown. Conidiophores not seen. Conidia consisting of 5-10 arms which 40-90 jum long and 4-5 Aim thick, with 10-15 septa. Not uncommon. - Found on dead branches of Fraxinus sp

., Gálhegy, Börzsöny Mts, 5.1.1982., Morgó-hegy in the Börzsöny Mts, 9.3.1984. Cylindrotrichum oligospermum (Corda) Bonord. Conidiophores up to 80 jum long, 3-4 jum wide, dark brown sterile setae among the conidiophores up to 400-500 jum long. Conidia cylindrical, 1septate, hyaline, 11-16 x 3-3, 5 Aim. The conidia are somewhat smaller than those reported by Ellis (1971). Not uncommon on various forest debris. - Found on dead twigs of Quercus sp.

, near the stream Morgó-patak, Börzsöny Mts, 9.2.1984., 14.9.1984. Dendryphion nanum (C.G.Nees ex S.F.Gray) Hughes. Stromata partly superficial, partly, immersed. Conidiophores singly or in groups, branched at the apex, 80-250 x 10-11 jum, mid-brown. Conidia solitary or in chains, obclavate to cylindrical, with rounded apex and truncated base with a dark scar, 5-11-septate, 40-90 x 11-12 Aim, brown, basal and apical cells subhyaline, smooth or verruculose. Not a common species in Hungary. - Found on dead stems of Melampyrum sp., Morgó-hegy, Börzsöny Mts, 8.4.1981. Dendryphiopsis atra (Corda) Hughes (Pl. III. Fig'. 2.). Conidiophores up to 400 jum long, 6-9 urn thick, dark brown. Conidia olivaceous brown, 3-5-septate, 30-70 x 10-14 jum. This is a common species in Hungary. - Found on dead branches of Quercus sp.

, near the stream Morgó-patak, Börzsöny Mts, 14.9.1983., 9.3.1984.; on dead twigs of Fagus silvatica

, Odor-hegy, Bükk Mts., 18.4. 1984. Dictyosporium elegáns Corda (Pl.

II. Fig.

4.). Colonies dark brown, granular.Conidia flattened in one plane, consisting of 4-6 arms, 27-52 x 20-28 jum, cells 6-7 jum thick, reddish brown. ELLIS (1971) gives a greater size of the conidia, i.e. 50-80 x 24-31 jum, cells 4-9 Aim thick. It is not a common species. - Found on dead wood, near the stream Morgó-patak, Börzsöny Mts. 15.6.1984.; Odor-hegy, Bükk Mts, 29.5.1984. Dictyosporium toruloides (Corda) Guéguen. Colonies dark blackish-brown, granular. Conidia flattened in one plane, brown, consisting of 6-8 arms which unequal in length. Conidia 33-46 x 22-33 jum, cells 5-6.5 Aim thick. According to literature data it is a common species on various forest debris, but in Hungary only a few data are known. - Found on dead wood, Odor-hegy, Bükk Mts, 29.5.1984. Endophragmia glanduliformis (Höhnel) M.B.Ellis (Pl.II. Fig.

3.). Conidia simple, acrogenous, ellipsoidal, 2-septate, upper cell dark brown, middle cell paler and basal one subhyaline, 12-15 x 9-10 jum. It is a rare species in Hungary. - Found on dead twigs of Alnus glutinosa

, Morgó-hegy, Börzsöny Mts, 5.4.1984. Endophragmiella collapsa (Sutton) Hughes (Pl.II. Fig.

2.). Conidiophores mostly in groups of 2-5, erect, rarely with a lateral branch, straight or irregularly bent, 30-130 jum long, 4-5 jum thick just above the base, golden brown but subhyaline near the apex. Conidia solitary, 2-septate, obovoid or more or less ellipsoidal, the two distal cells mid-brown, thick-walled and often collapsed, measuring 14,5-17 x 6-8 um. It is a rare species, had not been found previously in Hungary. Previously reported only from Canada. Found on decaying twigs of Alnus glutinosa

. near the stream Morgó-patak, Börzsöny Mts, 9.2.1984. Endophragmiella ontariensis Hughes (Pl.II. Fig.l.). Conidiophores usually in groups, erect, sometimes branched, straight, up to 200 jum long and 5-6 jum wide, dark brown, paler towards the apex. Conidia solitary, obovoid, 2-septate, basal cell paler than the two upper ones, 15-22 x 7-10 Aim. This species had not been found previously in Hungary, formerly reported only from Canada