半夏属若干变异式样及其演化  

SEVERAL VARIATION PATTERNS AND THEIR EVOLUTION OF PINELLIA (ARACEAE)

作　　者：李名旺[1] 顾德兴[1] 刘友良[1] 

机构地区：[1]南京农业大学农学系,南京210095

出　　处：《武汉植物学研究》1997年第4期317-322,共6页Journal of Wuhan Botanical Research

摘　　要：通过数量统计和栽培观察，发现半夏属（Pinellia）具有子块茎，子块茎根状茎子块茎根状茎珠芽和子块茎珠芽种组合形式的无性繁殖式样。属内经历了从根状茎（R）、子块茎（T）到珠芽（B）和盾形叶到其它叶形的演化及其它变化。还讨论了该属的种问进化。The quantitative analysis of the variation patterns of bulbils (B),tubercles (T),rhizomes (R) and leaves of 10 populations representing 5 species in Pinellia were repored. The results are as follow:There are 4 kinds of patterns of vegetative reproduction and in the genus of Pinellia (a,b,c representing the average numbers of T, R,B and m,n,r being the average ratio of length to width of T,R,B respectively). The evolution is R→T→B and perhaps the peltata form is more primitive than other forms of leaves. Also the diagram showing species evolution is given.

关 键 词：半夏属 变异式样 演化 天南星科 

分 类 号：Q949.717.2[生物学—植物学]