湖北菱科的数量分类研究Ⅱ

NUMERICAL TAXONOMIC STUDIES ON TRAPACEAE FROM HUBEI(Ⅱ)

摘要: 引言菱科(Trapaceae)植物为一年生水生浮叶草本,常见于湖泊,池塘及沟渠中。全世界约有70余种,主要分布于旧大陆的温带、亚热带地区,亦见于热带地区,如印度,东南亚及非洲,后来被引进美洲大陆和澳大利亚。中国有5至10种及其栽培种。菱科为一单属科。

Abstract: In this paper 5 species and 8 varieties of genus Trapa were described. Among them, Trapa incisa Sieb et Zucc. was a new record in Hubei, T.bicornis Osb. var.bispinosa(Roxb.) Z. T. Xiong, T. bicornis Osb.var.qvadrispinosa(Roxb.) Z. T. Xiong, T. bicornis Osb. var.acornis (Nakano)Z. T. Xiong, T. bicornis Osb. var. taiwanensis (Nakai) Z. T. Xiong were new combinations and T. japonica Fler. var. magnicorona Z. T. Xiong, T. japonica Fler. var. longicollum Z. T.Xiong, T. pseudoincisa Nakai var.aspinifa Z. T. Xiong, T. Pseudoincisa Nakai var. complana Z. T. Xiong were new varieties. The materials were collected in the suburb of Wuhan and other five counties in Hubei, Xiaogan, Honghu, Jianli, Huangmei, and Yangxin.