银耳科的三个新种

THREE NEW SPECIES OF TREMELLACEAE FROM CHINA

本文报道了银耳目银耳科的3个新种——黑褐德克耳(Ductifera nigro-brunnea Peng)、黑蜡壳菌(Sebacina fuscata Peng)和长担银耳(Tremella longibasidia Peng)。其形态特征,黑褐德克耳与钙德克耳(Ductifera calcarea Lowy)接近,但前者担子常具柄状基部,担孢子为卵形可与之区别;黑蜡壳菌与蜡壳菌[Sebacina incrustans(Pers.ex Fr.)Tul.]接近,但黑蜡壳菌担子果为黑色膜状,担子有短柄状基部;长担银耳与波纳银耳。(Tremella boraborensis Olive)接近,但前者担子果为黑色,菌丝无小鳞茎状结构,下担子头部决无横分隔者。对这三个新种进行了汉文和拉丁文描述。

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.