Plant Diversity ›› 2014, Vol. 36 ›› Issue (04): 453-467.doi: 10.7677/ynzwyj201414012

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Taxonomic Revision of Adiantum ser. Venusta Ching (Pteridaceae) from PanHimalayas*

 MAO  Xing-Xing, LIU  Xian, ZHANG  Gang-Min   

  1. College of Nature Conservation, Beijing Forestry University, Beijing 100083, China
  • Received:2014-01-20 Online:2014-07-25 Published:2014-03-13
  • Supported by:

    国家自然科学基金项目 (31270253) 和基金委重大国际合作项目 (31110103911)

Abstract:

Based on morphological study of specimens and extensive fieldwork, with the analysis of the micromorphology and phytogeographic materials, the series Venusta of Adiantum from PanHimalayas was taxonomically revised. It turns out that the shapes of indusia on fertile pinnules and the morphological characteristics of apical serrations on ultimate pinnules and the microstructures of scales are the most important characters for species identification. Seven species and two varieties were recognized from PanHimalayas: Adiantum roborowskii, A. roborowskii var. robustum, Abonatianum, Afengianum, Afimbriatum, Adavidii, Adavidii var. longispina, Avenustum and Atibeticum. Three published names were reduced to synonyms: Adiantum breviserratum was synonym of Afimbriatum, Adiantum erythrochlamys was synonym of Aroborowskii var. robustum and Adiantum bonatianum var. subaristatum was synonym of Abonatianum.

Key words: Adiantum, Adiantum ser. Venusta, Taxonomic Revision, Pan-Himalayas

CLC Number: 

  • Q 949