Bruchia longicollis

Bruchia longicollis D. C. Eaten, Bull. Torrey Club 17: 100. 1890. Plants gregarious in small clusters in sandy soil or on rotten logs; stems 3-5 mm. high, erect and simple: leaves spreading or recurved, 1.5-2 mm. long, the base broad and clasping, abruptly contracted into a long subulate point, ending in a few sharp teeth; costa thick, almost filling the point; basal cells lax, oblong or hexagonal and hyaline, all smooth; perichaetial leaves longer, 2-3 mm. long, toothed at the apex, the point subulate, the base broader, clasping. Autoicous: antheridia in basal buds: seta exserted, slender, flexuose, erect or inclined, 4-5 mm. long: calyptra lobed: capsule 3-4 mm. long, the neck half its length or more, stomatose; beak 0.5 mm. long, persistent, but with 4-8 rows of smaller hexagonal cells around its base: spores rough-warty, 27-35 n in diameter, maturing in July.
Type locality: Jackson, New Hampshire.
Distribution: Known only from the type locality.