Monographs Details: Calypogeia falcata Bischl.
Authority: Fulford, Margaret H. 1968. Manual of the leafy Hepaticae of Latin America--Part III. Mem. New York Bot. Gard. 11: 277-392.
Description:Species Description - Plants of medium size, light yellow-green to olive-green, in mats or among other bryophytes; stems 1-2 cm long, with leaves to 3 mm wide, prostrate, occasionally branched, the branches leafy, ventral-intercalary from the axils of the underleaves. Rhizoids frequent, long, in hyaline tufts from the bases of the underleaves. Line of leaf insertion longitudinal except at the upper end. Leaves distant to approximate, bordered at least below, ovate, asymmetric, 1.4-1.6 mm long, X 0.9 mm wide at the middle, falcate, the ventral side shorter, the base decurrent, the dorsal margin above the middle strongly convex, the apex shortly bifid, the teeth sharp, 2 or 3 cells long from a 1- or 2-celled base, occasional leaves oblong and nearly symmetrical; leaf border below the middle of the leaf, of long cells 70-90 X 20—30 µ, the border in the upper part, of smaller cells similar to those adjacent; cells of the upper part of the leaf 42-65 X 40-52 µ, thin-walled, without trigones, the cuticle weakly verruculose. Underleaves small, cuneate in outline, bisbifid, the lamina mostly 2 rows of cells high, the sinus broad U-shaped, the teeth narrow or uniseriate, the cells long, thin-walled. Male and female inflorescences and sporophyte not seen.

Distribution:Dominica South America|