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中国及邻近地区鳞果星蕨属的分类研究

石雷,张宪春   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-09-10 发布日期:1999-09-10
  • 通讯作者: 石雷

Taxonomic studies of the fern genus Lepidomicrosorum Ching et Shing (Polypodiaceae) from China and neighboring regions

SHI Lei, ZHANG Xian-Chun   

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-09-10 Published:1999-09-10
  • Contact: SHI Lei

摘要:

 鳞果星蕨属是从星蕨属中划分出来的,其孢子囊群上幼时覆盖着近无柄的鳞片状隔丝。本文在
研究星蕨亚科植物标本和野外考察的基础上,结合解剖学、孢粉学、生态学和植物地理学资料,对鳞果星蕨属植物作了修订。承认该属的独立性,并研究了有关种类的变异幅度,将星蕨属中有盾状隔丝的种类归入本属,承认鳞果星蕨和云南鳞果星蕨两个种。

关键词: 鳞果星蕨属, 分类, 中国及邻近地区

Abstract:

The genus Lepidomicrosorum was separated from Microsorum Link by Ching
and Shing in 1983. It is characterized by minute scattered sori covered with peltate and sub-
sessile paraphyses when young. Tagawa detected that Polypodium subhastatum Baker, the
type of this new genus, has this kind of paraphyses and thus transferred this species to
Neocheiropteris Christ in 1952, a genus with divided lamina. During our study of the Mi-
crosoroideae, a revision of Lepidomicrosorum from China and neighboring regions is made on
the basis of field and herbarium observation and evidence from anatomy, spore morphology,
ecology, and distribution. Lepidomicrosorum is recognized as an independent genus and the
demarcation line of its species is reconfirmed. Species with peltate scale-like paraphyses in
Microsorum were transferred to Lepidomicrosorum. As a result, two species are recognized
in this species, i.e.L.buergerianum (Miq.) Ching et Shing and L. hymenodes (Kunze)
L. Shi et X. C. Zhang.

Key words: Lepidomicrosorum, Taxonomy, China and neighboring regions