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Coal Flora Studies: Lepidodendrales

Fredda D. Reed
Botanical Gazette
Vol. 102, No. 4 (Jun., 1941), pp. 663-683
Stable URL: http://www.jstor.org/stable/2471955
Page Count: 21
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Coal Flora Studies: Lepidodendrales
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Abstract

1. These studies were based on coal ball material collected by Dr. A. C. Noe of the University of Chicago. The coal balls were found near Harrisburg, Illinois, in coal no. 5, in the Alleghany group of the Upper Pennsylvanian. 2. The genera described are both vegetative and reproductive organs belonging in the Lepidodendrales order. 3. The genera possessing specific diagnostic features either are harmonized with established species or are described as new; those represented by a single specimen only, or those with insufficient preservation, and therefore inadequately known, are described and recorded under the generic name. 4. The genera and species described are: Lepidophyllum aciculum sp. nov.; L. trichosulcata sp. nov.; L. alatum sp. nov.; L. latifolium Graham; L. thomasi Graham; Sigillariopsis cordata sp. nov.; Stigmaria ficoides Br., and stigmarian rootlets; Lepidostrobus Br. cone axis, cone scale, and microsporangium with tetrads of spores; Triletes Reinsch (megaspores of Lepidodendron), four types; Lepidocarpon lomaxi Scott.

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