Endosporoideus gen. nov., a mitosporic fungus on Phoenix hanceana

摘要

Endosporoideus pedicellata gen. et sp. nov. is described and illustrated from decaying petioles of' Phoenix hanceana collected from grassland in Tai Mo Shan, Hong Kong. The genus is unique in producing solitary, phraginosporous conidia. The conidia comprise a brown to dark brown inner-wall layer and thick, hyaline outer-wall layer and are produced holoblastically from determinate conidiogenous cells oil micronematous, mononematous conidiophorcs. Cells of conidia may disarticulate at the septa. Reprcscntative steps in conidiogenesis of F. pedirellata are illustrated with light micrographs, and details of' the conidiognous events are Interpreted schematically.