间座壳目新种和新记录

NEW SPECIES AND NEW RECORD OF DIAPORTHALES

本文报道在我国东北地区发现寄生在落叶松枝干上,间座壳目(Diaporthales的2个新种,库都尔白座壳(Leucostoma kuduerensis Yuan)八孢黑腐皮壳(Valsa octospora Yuan和针叶树上的新记录种弗氏黑腐皮壳[Valsa friesii(Duby)Fuckel]。库都尔白座壳的无性型属Cytophoma型。八孢黑腐皮壳的子囊孢子为20μm以上的大型种。新种的形态特征有汉文和拉丁文描述。均附有显微照像。

Two new species are reported: Leucostoma kuduerensis Yuan, Valsa octospora Yuan, and a new host record of Valsa friesii, which occur in deciduous larch branch. Asexual stage of Leucostoma kuduerensis is Cytophoma. Ascospore of Valsa octospora is macrospore type, length over 20μm. Larix gmelinii is their host. Their morphological characteristics are described in Chinese and Latin with micrographs.