Pollen morphology in the genus Veronica L. (Plantaginaceae) and its systematic significance

被引：13

作者：

Sanchez Agudo, Jose Angel ^{[1
]}

Rico, Enrique ^{[1
]}

Sanchez Sanchez, Jose ^{[1
]}

Montserrat Martinez-Ortega, Maria ^{[1
]}

机构：

[1] Univ Salamanca, Dept Bot, E-37007 Salamanca, Spain

来源：

GRANA | 2009年 / 48卷 / 04期

关键词：

Scrophulariaceae; Mediterranean Region; taxonomy; pollen size; style length; corolla diameter; ploidy level; exine sculpture; SEED MORPHOLOGY; SCROPHULARIACEAE; EVOLUTION; LENGTH;

D O I：

10.1080/00173130903364723

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Pollen grains of 30, mainly annual, species from 134 populations of the genus Veronica (Plantaginaceae, formerly Scrophulariaceae) from the Mediterranean Region, have been studied with light and scanning electron microscopy. Three pollen types are defined based on pollen size and exine surface sculpture. In some cases within the study group pollen size can be useful in species determination. Hypothetical relationships of pollen grain size and aperture number with ploidy level, style length and corolla diameter are discussed. The ornamentation of the exine in Veronica, although generally a conservative character within the genus, gives some additional support to the most recent infrageneric classification of Veronica.

引用

页码：239 / 257

页数：19

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