摘要
马蹄参属Ｄｉｐｌｏｐａｎａｘ Ｈａｎｄ ． － Ｍａｚｚ．被不同的作者放在五加科Ａｒａｌｉａｃｅａｅ、山茱萸科Ｃｏｒｎａｃｅａｅ 或单室茱萸科Ｍａｓｔｉｘｉａｃｅａｅ 中，本文报道了马蹄参Ｄｉｐｌｏｐａｎａｘｓｔａｃｈｙａｎｔｈｕｓ Ｈａｎｄ． － Ｍａｚｚ． 的解剖学特征，通过比较研究支持将马蹄参属从五加科中移出，改隶于单室山茱萸科。马蹄参属在山茱萸目Ｃｏｒｎａｌｅｓ 中处于比较原始的演化水平。
The monotypic genus Diplopanax Hand.-Mazz. of the south China and North Vietnam has been assigned by different authors to the Araliaceae, the Cornaceae and the Mastixiaceae. An investigation of floral, fruit, young stem and leaf anatomy confirmed the absence of secretory canals, one celled, two armed hairs, uniloculary ovar containing a single amphitropous ovule, these characters prelude the assignment of Diplopanax to the Araliaceae. This genus is the most similar to Mastixia based on morphological characters. The genus also possesses some features discordant in the Cornaceae, having epitropous ovules, horse-shoeshaped seed locule, cyme. Additionally, incomplete septum occurs in mastixiaoids fossil fruit of the upper Cretaceous, mastixoids is an independent evolution line. So the separate family Mastixiaceae enclosing Diplopanax and Mastixia is supported, and it is rather primitive in the order Cornales.
出处
《植物研究》
CAS
CSCD
北大核心
1999年第3期286-291,共6页
Bulletin of Botanical Research
基金
国家自然科学基金
关键词
马蹄参属
单室茱萸科
解剖学特征
系统学意义
Diplopanax
Mastixiaceae
Cornaceae
Araliaceae
Morphological characters
Systematic implication
