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Phylum Lycophyta
Descriptions and images of Isoetes, Lycopodium, and Selaginella from the three extant families.
http://botit.botany.wisc.edu/courses/syste...
Lycopodiophyta
Find out about this ancient plant division and its classes. From Wikipedia.
http://en.wikipedia.org/wiki/Lycopodiophyt...
Phylum Lycophyta
Includes phylum description, and links to images of members of the Lycopodiaceae, Isoetaceae and Selaginellaceae.
http://www.science.siu.edu/landplants/Lyco...
Introduction to the Lycophyta
An introduction to club mosses and scale trees, their life history, morphology, ecology, systematics and fossil history.
http://www.ucmp.berkeley.edu/plants/lycoph...
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