本研究收集與鑑定被孢毛黴屬 (Mortierella) 真菌12種，Mortierella alpina, M. ambigua, M.biramosa, M. capitata, M. elongata, M. exigua, M. gamsii, M. gemmifera, M. globulifera, M. jenkinii, M. parvispora及M. zychae，均由土壤分離， 其中Mortierella alpina, M.biramosa, M. capitata, M. elongata, M. exigua, M. gamsii, M. gemmifera, M. globulifera 及 M. zychae 等9 種為台灣新紀錄種。本屬最重要的形態特徵是孢子囊柄頂端有發展未完全的或是缺乏中軸，而且 在孢子囊柄的底部會有膨大的現象。以形態鑑定其種類之後，純化並抽取其 DNA，利用聚合酶酵素鏈鎖反應及 定序，取得核醣體 DNA 之ITS 序列，建構演化親緣關係樹，進一步確定其種類。本文提供所收集鑑定之台灣被 孢毛黴屬真菌之描述、圖示與相近種類之比較以及檢索表。

Twelve species of Mortierella are presented, which were obtained during a long term study of Zygomycetes in Taiwan. They are Mortierella alpina, M. ambigua, M. biramosa, M. capitata, M. elongata, M. exigua, M. gamsii, M. gemmifera, M. globulifera, M. jenkinii, M. parvispora and M. zychae, nine species among which are new records, namely Mortierella alpina, M. biramosa, M. capitata, M. elongata, M. exigua, M. gamsii, M. gemmifera, M. globulifera and M. zychae. Identification was based on morphological characters. A phylogenetic tree of Mortierella was constructed based on the analysis of ITS rDNA sequences (ITS1-5.8S-ITS2) and a key to the species of Mortierella from Taiwan is also provided.