被毛孢属的两种新昆虫病原真菌

TWO NEW ENTOMOPATHOGENIC FUNGI OF THE GENUS HIRSUTELLA

本文报道了被毛孢属的两个新种,多颈被毛孢(Hirsutella polycoll-utaLiang sp.nov.)和长白山被毛孢(Hirsutella changbeisanensis Liang sp.nov.).多颈被毛孢的主要鉴别特征是;1)有性型为一种子囊壳表生的虫草(Cordyceps sp.);2)瓶梗及其支撑茵丝皆再育;和3)分生孢子拟棒形或拟梭形,5～8.5×1.5～2μm.长白山被毛孢和其近缘种能以下列特征相区别:被覆寄主的菌丝体白色,瓶梗可再育且上部光滑,无二次分生孢子形成和瓶梗基部略膨大但不靠菌丝的隔膜产生.

Two new species of Hirsutella Pat., Hirsutella polycolluta Liang sp.nov.and Hirsutella changbeisanensis Liang sp.nov., were described and illustrated in this paper.The diagnostic features of Hirsutella polycolluta Liang are as follows, 1)Cordyceps teleomorph of this fungus is a species with superficial perithecia; 2) Both phialides and supporting hyphae are proliferous; and 3)Conidia clavoid of fusoid, 5-8.5×1,5-2μm.Hirsutella changbeisonensis Liang can be distinguished from its allies by white mycelia covering over host body,smooth and proliferous phialides,without formation of secondary conidia and phialides arising more or less from midwav between two septa.