Anisolpidium saprobium Karling and Rhizidiomyces hirsutus Karling are species of Hyphochytriales. These are first time reported from Taiwan. 本文描述二種具有前生單鞭毛游孢子的絲壺菌,分別是:腐生異壺菌 (Anisolpidium saprobium Karling)及粗毛根前毛菌 (Rhizidiomyces hirsutus Karling),均為臺灣新記錄。