%0 Journal Article
%T Study on the Systematic Position of Tetraena Maxim<br>四合木属系统地位的研究
%A Ma Yu-Chuan
%A Zhang Shou-Zhou
%A <br>马毓泉
%A 张寿洲
%J 中国科学院研究生院学报
%D 1990
%I 
%X Tetraena Maxim.  is an endemic genus of Inner Mongolia and the desert region of Central Asia. It is also a rare and endangered plant. Some botanists had made some research on the systematic positions of this genus, but their views are debatable. Through a comprehensive study: research history, morphology (pistil, fruit), pollen grains, chromosomes, the authors sug- gest that this genus be separated from Zygophylloideae (Zygophyllaceae, Takhtajan. 1987) and a new subfamily-Tetraenoideae be set up for it.  A  key to subfamilies of  Zygophyllaceae (sen. str.) is provided. The systematic position of Tetraena Maxim. is: Rutales-Zygophyllaceae -Tetraenoideae-Tetraena.
%K Tetraena
%K Pollen grain
%K Chromosome
%K Systematic position
%K Tetraenoideae<br>四合木属
%K 花粉粒
%K 染色体
%K 系统地位
%K 四合木亚科
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=C7264F6B786C769CD2D74F8B0AE2238D&yid=8D39DA2CB9F38FD0&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=CFAC5CB624A41AFD&eid=C36EC077A8A90308&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=0