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Some Considerations on the Nature and Behavior of the Relict Moss, Desmatodon randii
A. S. Lazarenko
Vol. 77, No. 3 (Autumn, 1974), pp. 474-477
Published by: American Bryological and Lichenological Society
Stable URL: http://www.jstor.org/stable/3241625
Page Count: 4
You can always find the topics here!Topics: Capsules, Spores, Mosses, Haploidy, Diploidy, Social generations, Apogamy, Riverine habitats, Mother cells, Polyploidy
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Desmatodon randii (Kenn.) Laz., possessing a widely disjunct distribution between Europe and North America, has had its European glacial refuge in the recent Ukrainian locality, from where the Baltic Sea shores were invaded. An inbred laboratory culture line has retained a vigorous fertility through 15 successive generations but, on the other hand, also gave rise to a spontaneous apogamous line in haplophase, which, perpetuated vegetatively, has behaved as a persistent modification; being reproduced, however, by apogamous spores, it has lost apogamy stepwise, passing through an amphomorphic stage.
The Bryologist © 1974 American Bryological and Lichenological Society