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Generic Classification of Modern North American Lycopodiaceae
Warren H. Wagner, Jr. and Joseph M. Beitel
Annals of the Missouri Botanical Garden
Vol. 79, No. 3 (1992), pp. 676-686
Published by: Missouri Botanical Garden Press
Stable URL: http://www.jstor.org/stable/2399759
Page Count: 11
You can always find the topics here!Topics: Genera, Gametophytes, Spores, Biological taxonomies, Plants, Plant spores, Canals, Root stele, Leaves, Taxa
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Generic classification of North American Lycopodiaceae is analyzed in terms of the general factors that govern the recognition of the rank of genus, the character states that determine affinities, the hypothetical common ancestral groundplan, a tree based on these data, and a translation of this information into a classification scheme. The genera segregated here are based primarily on numerous characters of anatomy, chromosomes, spores, and gametophytes. Those groups that are recognized as genera have many distinguishing features, strong gaps separating them from other groups, monophylesis, uniquely derived states, inability to hybridize, and a level of segregation consistent and comparable with generic division in other pteridophytes. The classification adopted is as follows: subfamily Huperzioideae (Phlegmariurus, Huperzia), subfamily Lycopodioideae (Lycopodium, Diphasiastrum), and subfamily Lycopodielloideae (Pseudolycopodiella, Lycopodiella, and Palhinhaea).
Annals of the Missouri Botanical Garden © 1992 Missouri Botanical Garden Press