THREE NEW SPECIES OF TREMELLACEAE FROM CHINA
银耳科的三个新种

During the course of a study of the family Tremellaceae in China,three fungi were found quite different from those already described and reported here as three new species. They are named Ductifera nigro-brunnea Peng sp. nov.,Sehacina fuscata Peng sp. nov. and Tremella longibasidia Peng sp. nov., Ductifera nigro-brunnea Peng and D. calcarea Lowy are similar in morphological characteristics, but the hypobasidium of the former has a basal stalk, and its basidiospores are ovoid. Sebactna fuscata Peng is similar to S. incrustans (Pers. ex Fr.) Tul., but the fructification of S. fuscata Peng is black membraneous, and its basidium has a short basal stalk. Tremella longibasidia Peng and Tremella boraborensis Olive are similar, but the fructification of T. longibasidia Peng is black, its hyphae do not have small bulbous structures and there is no transverse septa on the top of hypoba sidia. Their Latin and Chinese diagnoses are given. Type specimens of the new species are deposited in the Mycological Herbarium of Hunan Normal University,Changsha, Hunan, China.