期刊论文

中文

西北植物学报

1000-4025

2022

42

3

410-417

10.7606/j.issn.1000-4025.2022.03.0410

国家自然科学基金(31360038)。

本校为其他机构

该研究以中国产芸香科广义吴茱萸属18种3变种为材料,于体视显微镜下观察叶结构特征。结果发现:(1)吴茱萸属叶脉为羽状脉。(2)二级脉有花环状弓形脉和简单弓形脉两种类型,极少数存在内二级脉,间二级脉存在或缺失。(3)三级脉不规则网状或极少数弱贯穿,边缘三级脉环状。(4)四级脉不规则网状或自由分支。(5)五级脉不规则网状或自由分支,脉间区发育差或中等,游离端小脉末端简单或管状异形,边缘末级脉大多数不完整,极少数环状。(6)基于重要的外部形态学特征和叶结构特征观察结果,编制了广义吴茱萸属植物的分组检索表。研究表明,吴茱萸属这些类群的二级脉与更高级脉序形成的结构极为稳定,同时又存在种间...

Leaf architecture of 18 species and 3 varieties of Euodia s.l.(Rutaceae)in China was observed under a stereomicroscope.The primary vein framework is pinnate venation pattern.In most species,the secondary veins are festooned brochidodromous and simple brochidodromous.Very few species are present interior secondaries.Intersecondary veins are absent or present.Tertiary veins are irregularly reticulate or very few weakly percurrent,with marginal tertiary veins being annular.Quaternary veins are irregular reticulate.Quinternary veins are irregular reticulate or freely ramifying.Areolation is poor o...