Lycopodium dichotomum Jacq.
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Authority
Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.
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Family
Lycopodiaceae
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Scientific Name
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Description
Species Description - Plants arching or pendent from an ascending, arcuate base. Stems mostly 15-50 cm long, 2-A mm in diam. (excluding leaves), or 1-3(-4) cm thick including the leaves, 1- to 6-times dichotomous, all branches of equal breadth or sometimes the densely sporangiate apical ones gradually narrower. Leaves crowded, spirally arranged in 8 or 10 ranks, more or less spreading or ascending, mostly 10-20 mm long, 1-1.4 mm broad near base, linear-subulate and subfalcate, slightly concave on adaxial side, keeled abaxially at the decurrent base. Sporophylls like the vegetative leaves or shorter and more oblique, always narrower than the sporangia. Sporangia reniform, ca. 2 mm broad, with a deep sinus.
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Discussion
Lectotype. Jacquin, Hort. bot. vindob. 3, t. 45, which illustrates a plant from Martinique.
Syn. Urostachvs dichotomus (Jacquin) Herter, Beih. Bot. Centralbl. 39: 249. 1922.
Huperzia dichotoma (Jacquin) Trevisan, Atti. Soc. Ital. Sci. Nat. 17:248. 1874.
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Distribution
General Distribution. Florida, Greater and
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