摘要
报道了采自藏东南林区的炭角菌属一新种──委陵菜生炭角菌(XylariapotentillaeA.SXusp.nov.)。该种子座直立,头部分叉或柄基分枝,地上部分高2~4.5cm,顶端可孕。子囊座柱状或圆锥状或扁平,长1~3cm,宽3~7mm,表面精糙,桑葚状,黑色5内部蜡质,中实,白色。柄柱状,直或扭转,具纵皱折,地下具延伸的假根。子囊壳卵圆形,450~500×200~300μm,孔口突出,盾状或疣状。子囊棒状,70~100×6~8μm,8孢子,顶端遇Melzer's试剂变蓝部分为长方体状,6×2.5μm。子囊孢于单行排列,梭形、不等边椭圆形至半球形,10~163×5~7.5μm,成熟后褐至黑褐色,光滑,芽缝不明显,直,稍短于孢子长度。侧丝多,细长,径15μm,无色,无隔。地下假根寄生在蕨麻委陵菜(Potentillaanserina)的活根上。模式标本保存于西藏高原生态研究所标本室(HXZE)。
A species of the genus Xylaria with special habitaL is described as new and named Xylaria potenlillae A. S. Xu sp. nov. Stroma surface is rough, fertile at apex, and ascomal interior white. It grows on the living root of Polentilla anserina (a herb) and is different from all known species of the genus Xylaria.Type specimen is deposited in Herbarium of Xizang Inshtute of Plateau Ecology (HXZE).
出处
《菌物系统》
CSCD
北大核心
1999年第2期137-140,共4页
Mycosystema