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Adenophorus x carsonii hyb. nov. (Grammitidaceae): A New Endemic Hybrid from the Island of Hawaii

Tom A. Ranker
Novon
Vol. 2, No. 4 (Winter, 1992), pp. 408-410
DOI: 10.2307/3391501
Stable URL: http://www.jstor.org/stable/3391501
Page Count: 3
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Adenophorus x carsonii hyb. nov. (Grammitidaceae): A New Endemic Hybrid from the Island of Hawaii
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Abstract

A new hybrid between two species of the endemic Hawaiian genus Adenophorus is described. On morphological grounds it appears to be a hybrid between A. hymenophylloides and A. tripinnatifidus. That hypothesis is supported by preliminary isozyme data, which also demonstrate that different individuals were produced by separate hybridization events. The irregular size and shape of spores and lack of complete pairing of meiotic chromosomes indicate that the hybrid is infertile.

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