Angstroemia jamaicensis

Angstroemia jamaicensis C. Mull. Bull. Herb
Boiss. 5 : 554. 1897.
Angstroemia brevipes Hatnpe; Besch. M6m. Soc. Sci. Nat. Cherbourg 16: 163; hyponym. 1872.
Dioicous: male plants of the same size as the fertile, usually bearing several elongate flower-buds, reddish-brown or golden within, the antheridial leaves broadly ovate, abruptly narrowed into a smooth hair-point often much longer than the blade and enclosing numerous antheridia up to 0.75 mm. long, without paraphyses: fertile plants in mostly glossy, goldengreen, loose tufts or closely gregarious, with filiform stems, unbranched or with few, mostly short branches, up to 6 cm. high : lower stem-leaves very small, closely convolute, short-ovate, very shortly pointed, the upper gradually larger and longer-pointed, the uppermost and perichaetial with the blade up to 1.5 mm. long and a smooth, subulate point 2-5 mm. long, the upper margin of the blade sometimes not quite entire; costa stout, broader above than below, excurrent into the point; lower leaf -cells more or less rectangular, 8-10 fx wide by 20-40 /z long, the upper ones much narrower, somewhat elongate-hexagonal to linear-vermicular, with the walls slightly and uniformly thickened, the median cells about 5 /* wide by 25-40 p. long: seta smooth, erect, 3-5 mm. long: capsule erect, nearly cylindric when dry, up to 2 mm. long, smooth, dark-colored when old with 1 or 2 rows of stomata near the base; peristome-teeth reddish, rather densely papillose, extending about 300 /j, above the mouth, 40 p. wide at tiae base, more or less split or perforate along the median line; annulus none; lid obliquely beaked, less than one half as long as the capsule: spores nearly smooth, up to 16 ^ in diameter.
Type locality: Morce's Gap, Jamaica. Distribution: Jamaica and Mexico.