Isodrepanium
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Authority
Buck, William R. 2003. Guide to the plants of central french Guiana. Part 3. Mosses. Mem. New York Bot. Gard. 76: 1-167.
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Family
Neckeraceae
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Scientific Name
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Description
Genus Description - PLants medium sized to somewhat robust, in very lustrous, pale green to golden, often dense, untidy mats or pendulous; primary stems crepping, occasionally pendent, irredularly 1-2 pinnate, secondary stems not differentiated, branches arising laterally, complanate- foliate. Leaves strongly complanate, spreading to wide-spreading, ± falcate -cultriform, strongly asymmetric, not decurrent; margins serrulate above, subentire below, inflexed on one side below; costa short and double; cells elongate, smooth, firm -walled, porose; alar cells not differentiated. Asexual propagula none. Dioicous. Perichaetia large, without ramenta. Setae very long, smooth; capsules suberect to horizontal, broadly short- cylindric; exostome teeth on the front surface densely cross- striolate below, papillose above; endostome with a high basal membrane, segments keeled, perforate, about as long as the teeth, cilia? present. Calyptrae not seen. Isodrepanium is a monspecific genus restricted to the New World tropics. It is characterized by strongly asymmetric, complanate leaves. the laminal cells are distinctly porose and the costa is short and double. The setae are very long and bear a relatively short, small capsule. The peristome is hypnoid.