An Assessment of Pollen Morphology in the GenusVitexL. (Labiatae)
作者:
MarkFrederick Large,
DavidJohn Mabberley,
期刊:
Grana
(Taylor Available online 1995)
卷期:
Volume 34,
issue 5
页码: 291-299
ISSN:0017-3134
年代: 1995
DOI:10.1080/00173139509429062
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Pollen grains ofVitex(Labiatae) a large pantropical genus with a few temperate species, are examined by light microscopy, SEM and TEM. All grains are elliptic and tricolpate. However, exine surface sculpture varies between taxa. Two main morphological groups are recognized: the first is tectate simple-perforate to tectate perforate-fenestrate (with perforations anastomosing); the second tectate micro-reticulate/rugulate with micro-perforations in valleys between muri (the latter form is found in Madagascar taxa which have a long corolla tube). Pollen of the commonly cultivatedVitex negundois unusual in having supra-rugulate, often collapsed grains. Polar and equatorial sizes are included and the possible taxonomic significance of the morphological differences discussed.
点击下载:
PDF (1160KB)
返 回