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THE MORPHOLOGY AND CYTOLOGY OF SPOROGENESIS OF TRICHOMANES PROLIFERUM BL.
Author(s) -
BELL P. R.
Publication year - 1960
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1960.tb06201.x
Subject(s) - frond , petiole (insect anatomy) , biology , botany , rhizome , sporogenesis , meiosis , genetics , gene , spore , hymenoptera
S ummary The morphology of Trichomanes proliferum is described and the anatomy of the petiole and rhizome is discussed in relation to the habitat of the plant and its growth. It is suggested that after the initial phases each frond may be regarded as a more or less independent colony of cells, the complexity ultimately attained by the frond depending upon the supply of primary metabolites reaching it directly from without. It is reported that in the plant collected from Gunong Poe the chromosomes failed to pair at meiosis and 108 univalents were present. A means is suggested by which polyploidy could have arisen frequently in the Hymenophyllaceae.