本文报道了两种生于杨树上的多孔菌,杨生薄孔菌(AntrodialeucaenaY.C.DaiNiemel)和西伯利亚毡被孔菌(Spongipellissibirica(PenzinaRyvarden)PenzinaKotir.)。根据所采集标本对其进行了详细描述。杨生薄孔菌的主要特征为子实体平伏反转,二系菌丝系统,生殖菌丝具锁状联合,担孢子圆柱形,造成杨树木材褐色腐朽。杨生薄孔菌目前只发现在中国东北,该种与垫状薄孔菌(Antrodiapulvinascens(Pilat)Niemel)和大孔薄孔菌Antrodiamacra(Sommerf.)Niemel 较类似,但垫状薄孔菌的担子果不形成真正的菌盖,其担孢子为椭圆形,菌丝组织中无结晶体存在。大孔薄孔菌也生长在杨树上,但该种只形成平伏的子实体,其孔口和担孢子均比杨生薄孔菌大。西伯利亚毡被孔菌目前只发现在中国东北和俄罗斯的西伯利亚地区,其主要特征为子实体盖状、白色、肉质,单系菌丝系统,生殖菌丝具锁状联合,担孢子椭圆形至近圆形,通常生长在杨树活立木上,造成木材白色腐朽。该种与同属的松软毡被孔菌Spongipellisspumea(Sower by:Fr.)Pat.很接近,但后者的孔口为圆形且完整,其担孢子比西伯利亚毡被孔菌的大。

报道了云南省西双版纳热带雨林地区阔叶树上和四川成都肉桂活树上的两种新的干基腐朽病害,其病原菌为角壳多年卧孔菌( Perenniporia martius (Berk. ) Ryvarden)和似雪拟层孔菌( Fomitopsis nivosa (Berk. ) Gilb. & Ryvarden) 。根据所采集的材料对其进行了详细的形态描述并对病害的症状、分布等进行了讨论。

A newly described pathogen,Gyrodontium sacchari,on hardwood in tropical area was reported from Yunnan Province.The genus of Gyrodontium was also the first recorded in mainland of China.An illustrated description of the fungus was given in detail based on the specimens from China.

A lignicolous fungus,Hydnochaete tabacina(Berk.& M.A.Curtis) Ryvarden,was newly recorded from China,it was found on Quercus variabilis in Beijing.An illustrated description of this species was given based on the materials related.