%0 Journal Article
%T Studies on the Pollen Morphology of Trapa from Zhejiang<br>浙江菱属植物花粉形态研究
%A Ding Bing-Yang
%A Fang Yun-Yi
%A Zhang Hui-Ming
%A Liang Hong
%A Zhao Lie
%A <br>丁炳扬
%A 方云亿
%A 张慧明
%A 梁红
%A 赵烈
%J 中国科学院研究生院学报
%D 1991
%I 
%X In the present work, pollen grains of 9 species of Trapa L. from Zhejiang were ex- amined under LM and SEM. They are subsphaeroidal or subprolate, obtuse-triangular in polar view, elliptic or subrounded in equatorial view, and 3-colpate. In the equatorial area, there are three ridge-shaped appendages which elongates along apertures toward two poles and ultimately combined, the ornamentation of other part of exine is minute-verrucate. The genus Trapa is uniform in shape of pollen grains, type and position of apertures and ornamentation of exine, while differentiation can be found in size of pollen grains and shape of ridge-shaped appendage. All of these provide valuable evidence for the classification of Trapa and the verification of their affinities. The validity of Trapaceae, the evolutionarytrends of pollen morphology and the affinities of some species are discussed in this paper.
%K Pollen morphology
%K Trapa
%K Zhejiang
%K China<br>花粉形态
%K 菱属
%K 浙江
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=A0F7464ACC0326BE0DF4647EC7CDD4A2&yid=116CB34717B0B183&vid=771469D9D58C34FF&iid=0B39A22176CE99FB&sid=9D453329DCCABB94&eid=6425DAE0271BB751&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=2&reference_num=0