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Platyzoma-A Queensland Fern with Incipient Heterospory
Alice F. Tryon
American Journal of Botany
Vol. 51, No. 9 (Oct., 1964), pp. 939-942
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2440244
Page Count: 4
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First record is made of a dioecious condition in the heterosporous, terrestrial fern Platyzoma microphyllum R. Br. from northern Australia. The spores, gametophytes and young sporophyte are described and the role of heterospory and dioecism in these plants is discussed. The genus is newly classified as a subfamily Platyzomatoideae in the Polypodiaceae.
American Journal of Botany © 1964 Botanical Society of America, Inc.