Radula
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Authority
Britton, Nathaniel L. & Millspaugh, Charles F. 1920. The Bahama Flora.
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Family
Radulaceae
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Scientific Name
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Description
Description - Stems prostrate or growing from a prostrate rhizome, with numerous lateral branches arising just behind normal leaves; rhizoids always borne on the ventral lobes of the leaves. Leaves complieate-bilobed, the dorsal lobes larger than the ventral, incubous, usually entire and often rounded at the apex; ventral lobes attached to the dorsal by a more or less elongated keel, the free margin usually appressed to the dorsal lobe. Underleaves none. Antheridia borne singly or in groups of two or three in the axils of saccate bracts, the latter forming more or less elongated androecia. Archegonia borne on more or less elongated branches, sometimes with subfloral innovations; bracts similar to the leaves. Perianth usually dorsiventrally compressed, rarely subterete or plicate, truncate and bilabiate but otherwise entire at the broad mouth. Gemmae, when present, discoid, multicellular. [Latin, a scraper or spatula.] About 400 species, largely tropical. Type species: B. complanata (L.) Dumort.