臺灣大戟屬的分類研究

A Taxonomic Study of the Genus Euphorbia L. (Euphorbiaceae) in Taiwan

狹義的大戟屬（Euphorbia L.，大戟科）在臺灣共有8種。本文更正猩猩草的學名為E. cyathophora Murr., 白苞猩猩草的學名為E. heterophylla L.; 處理E. calonesiaca Croizat，Galarhoeus formosana (Hayata) Hurusawa var. hayatai Hurusawa和E. taiwaniana Ying分別為E. formosana Hayata，E. shouanensis Keng和E. heterophylla L.的同義名。此外，亦討論屬內的分類特徵，記述各種的性狀、地理分佈及觀察的標本，並提供檢索表，各種的繪圖以為辨識。

Eight species of Euphorbia L. sensu stricto from Taiwan are treated in this revisional study including two taxa with nomenclatural corrections (E. cyathophora Murr. and E. heterophylla L.). E. calonesiaca Croizat, Galarhoeus formosanus (Hayata) Hurusawa var. hayatai Hurusawa and E. taiwaniana Ying are treated as synonyms of E. formosana Hayata, E. shouanensis Keng and E. heterophylla L., respectively. Discussions of taxonomic important characters, a key to all taxa along with their descriptions, illustrations, geographical distributions, specimens examined and taxonomic notes are presented.