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REPRODUCTION OF THE ARTICULATED CORALLINE AMPHIROA EPHEDRAEA 1
Author(s) -
Johansen H. William
Publication year - 1968
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1968.tb04702.x
Subject(s) - biology , reproduction , zoology , evolutionary biology , ecology
SUMMARY Developmental events in the formation of reproductive structures in tetrasporangial, male, and female plants of Amphiroa ephedraea from South Africa were studied. An early step in the formation of a conceptacle is the elongation of a stratum of cortical cells, the cavity cells, to form a dome surmounted by an a cellular cap. Atrophy of the cavity cells to form a conceptacular cavity accompanies the subsequent development of reproductive structures. Tetrasporangial conceptacles differ from sexual conceptacles in that the reproductive cells develop in a peripheral ring and in the fact that the tissue lateral to these cells does not overgrow the fertile area. Finally, a comparison of some of the features of reproduction in A. ephedraea is made zuith. comparable features in other corallines.