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Gametophytes of some Ceylonese species of Thelypteridaceae
Author(s) -
Tigerschiold Eva
Publication year - 1990
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1990.tb00558.x
Subject(s) - biology , botany , gametophyte , zoology , pollen
Gametophytes of 12 species of the family Thelypteridaceae were investigated with Cryo‐SEM and conventional SEM. Most of the species have rounded front lobes and rounded lobes extending backwards. Metathelypteris flaccida has a cordate game‐tophyte. All species have glandular hairs, which are of different length and could be used as diagnostic character in some cases. In addition 7 of the species investigated have acicular hairs. In Thelypteris confluens the glandular hairs on margins and surfaces are born on cells that protrude from the surrounding cells. It is concluded that the combination of characters makes it possible to distinguish species of different genera with the help of gametophyte characters only.