Five hyphomycetous fungi: Chaetendophragmia triangularia, Chlamydomyces palmarum, Coronospora dendrocalami, Corynespora cassiicola and Cylindrocarpon fusifrome on decaying leaves or stems were newly recorded from several localities of Taiwan overtime using single or mass spore isolation technique. The morphological traits were closely examined, diagnosed and illustrated, and its distinguished characters for identification and comparison with conspecies of varied geographic regions were also briefly discussed. 本文詳細繪圖、描述五種臺灣產隸屬於不完全菌絲孢綱 (Hyphomycetes) 之新紀錄種真菌: Chaetendophragmia triangularia, Chlamydomyces palmarum, Coronospora dendrocalami, Corynespora cassiicola 以及 Cylindrocarpon fusifrome,並簡扼比較討論此類真菌之形態鑑定特徵,以及和分布於其它不同地域之同種真菌之異同。