本文詳細繪圖及描述一種台灣產隸屬於不完全菌絲孢綱之世界性新種真菌(Guedea lantania)以及二種台灣產不完全菌絲孢綱之新紀錄種真菌(Isthmotricladia gombakiensis及Wiesneriomyces laurinus)，提供Guedea屬之檢索表，並比較討論此類真菌之形態鑑定特徵，以及其與模式種和相似種真菌間之異同。

Three new hyphomycetes in Taiwan are proposed, including one new species, Guedea lantania, and two new records, Isthmotricladia gombakiensis and Wiesneriomyces laurinus. They were isolated from decaying leaves or rotten twigs individually. Morphological characteristics of G. lantania was described, illustrated and compared with the other species in the Guedea genus and a key to the members of this genus was provided. The unique characters of the two newly recorded fungi were also diagnosed and illustrated, and compared with the allied taxa to highlight their distinct characters.