Fung. Sci. 22(3, 4): 79–83, 2007 Anisolpidium saprobium and Rhizidiomyces hirsutus, new records of Hyphochytriomycetes (Hyphochytriales) in Taiwan Shu-Fen Chen Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan (Accepted: December 17, 2007) ABSTRACT Anisolpidium saprobium Karling and Rhizidiomyces hirsutus Karling are species of Hyphochytriales. These are first time reported from Taiwan. Keywords: Anisolpidium, Hyphochytriomycetes (Hyphochytriales), Rhizidiomyces. Introduction Materiales and Methods Hyphochytriomycetes (Hyphochytriales) is a Samples of water and soil were baited with group chytrid-like organisms with anteriorly pine pollen. Emerson’s 1/4YpSs agar (contain- uniflagellate zoospores and contains only about ing antibiotics) was used to isolate and culture 23 known species. Fuller (1990) included them the organisms (Chen and Chien, 1998). Pure in the class Hyphochytriomycetes, phylum Hy- cultures were maintained in 1/4YpSs slush in phochytriomycota. According to Berbee and screw-cap tube and transfered each three Taylor (1999) the Hyphochytriomycota, Laby- months. All pure cultures were deposited at the rinthulomycota and Oomycota belong to the mycological laboratory in Chia Nan University Kingdom Stramenopila. Hyphochytriomycota, of Pharmacy and Science, Tainan, Taiwan. consisting of a single order Hyphochytriales Developmental stages and morphological which have been classified into three families, characters were examined using the light mi- namely Anisolpidiaceae, Rhizidiomycetaceae croscope and scanning electron microcope and Hyphochytriaceae on the basis of thallus (ABT DS-130S). structure and development (Karling, 1943, 1967; Fuller, 1990; Alexopoulos et al, 1996). Taxonomy The purpose of this paper is to describe and il- lustrate Anisolpidium saprobium and Rhizidio- Anisolpidium saprobium Karling, J. of myces hirsutus as two species newly recorded Mitchell Society, 84: 166–178, 1968. (Fig.1) in Taiwan. On pine pollen: Sporangium holocarpic, en- .