Trematodon tenellus

Trematodon tenellus Schinip.; He.sch. Ann. Sci Nat. VI. 3: 178. 1876. Trematodon cubensis C. Miill. Hcdwigia 37: 228. 1898.
Plants 1-1.5 cm. high; stems short and simple or branching by basal innovations, 1-2 mm. high: leaves curled and twisted when dry, light-yellow, 1-2 mm. long, linear-subulate from a broader ovate base; costa broad, grooved, not filling the awn, ending in the serrate apex; margins slightly recurved, serrate at the apex only, the upper cells small, quadrate with thick walls, the lower ones oblong, clear; perichaetial leaves longer, 2-3 mm , more sheathing at the base and more abruptly subulate. Autoicous; antheridia in ba.sal buds; seta palc-ycllow, 10-15 mm. long, erect or curved: calyptra cucullate: capsules mostly inclined, 5-6 mm. long, rarely 1 cm.; neck 2-4 mm., with a small goiter and stomatose; urn 2-2.5 mm. long; lid 1.5-2 mm. long; annulus large, red, of 3-4 rows of cells, falling with the lid; peristome red, striolate; basal membrane of 4 rows of cells; teeth unequally perforate or split, the apex pale and slender: spores warty, 18-21 /i in diameter, maturing in spring.
Typa locality: On rocks along the road from Sant d'Eau to Camp Jacob, altitude 525 meters, Guadeloupe.
Distribution: Cuba (E. G. Britton 54.?J) ; Guadeloupe.