Campylopus subleucogaster

Campylopus subleucogaster (C. Miill.) Jaeger & Sauerb. Ber,
St. Gall. Nat.. Ges. 1877-78: 381. 1879.
Dicranum subleucogaster C. Mttll.un.jC. Mohr) Bull. Torrey Club 5: 49. 1874. Dicranum zygodonticarpum C. Miill'. Linnaea 42: 471. 1878.
Plants in loosely cohering tufts, with stems 1-2.5 cm. high, branching above and tomentose below: stem-leaves about 5 mm. long, often somewhat curved and spreading-secund, from a short-ovate base gradually narrowed to a long, subulate, sharply denticulate point, the leafblade very narrow above and more or less serrulate one half down; costa shortly excurrent, rough on the back above, about 200 /* wide near the base and extending about one third across the leaf -base, in cross-section showing a ventral row of rather irregular cells with somewhat thin walls extending scarcely one third through the costa, a median row of cells of nearly the same size with a stereid-band on the dorsal side; alar cells reddish to hyaline, broad, lax, rather poorly denned from the cells above, which are more or less inflated, often up to 25 m wide and scarcely elongate toward the costa, somewhat smaller and narrower toward the margin, all becoming gradually smaller upward with somewhat thickened not pitted walls, the majority of the cells in the broader part of the leaf varying from nearly square to twice as long as broad; inner perichaetial leaves convolute nearly one half up, gradually narrowed to a rough subula: seta sinuous above, smooth, 10-12 mm. long: capsule elliptic, regular, smooth at the base, deeply furrowed and nearly cylindric when dry and empty, 1.2 mm. long, with a lid two thirds as long; annulus large; peristometeeth split to the middle, at the base 40 /x wide: calyptra ciliate: spores rough, 12-14 fx in diameter.
Type locality: Alabama.
Distribution: Alabama; Costa Rica; Guatemala.