Spore types, morphological evolution and phylogeny in the Pteridaceae
作者:
Santha Devi,
期刊:
Grana
(Taylor Available online 1979)
卷期:
Volume 18,
issue 1
页码: 41-46
ISSN:0017-3134
年代: 1979
DOI:10.1080/00173137909428869
出版商: Taylor & Francis Group
关键词: Pteridaceae;spores types;evolution;phylogeny
数据来源: Taylor
摘要:
Morphological analysis of the spores and their bearing on the taxonomy and evolution of Pteridaceae have been dealt with. The spore morphological combinations in evolutionary successions are trilete-non-perinous, trilete-perinous, monolete-non-perinous and monolete-perinous. It is suggested that the levels of evolutionary progress of the various taxa are in the order of succession, Pteroids, Gymnogrammoids and Lindsaeoids, but each have evolved along parallel lines from the Dicksonioid-Dennstaedtioid complex.
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