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Sem Studies on Pollen Grains of North EuropeanUlmusSpecies

 

作者: Jens Stockmarr,  

 

期刊: Grana  （Taylor Available online 1974）
卷期: Volume 14, issue 2-3  

页码: 103-107

 

ISSN:0017-3134

 

年代: 1974

 

DOI:10.1080/00173137409429900

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Pollen grains ofUlmus glabra, U. laevis, U. minorandU. procerahave been studied in a scanning electron microscope. The pollen grains are heteropolar with a smooth proximal polar area and a rough sculptured distal polar area. In the equatorial belt the interporal regions have distinct sculpturing and are bordered by low ridges.

 

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