Pringleella pleuridioides Cardot 1909

Pringleella pleuridioides Card. Rev. Bryol. 36 : 68. 1909 Plants gregarious, small, up to 5 mm. high; stems only 2-3 mm. high, simple or branching by basal innovations: lower leaves spreading or recurved, small, 1-1.5 mm. long, lanceolate. acute or obtuse; margins entire or slightly serrulate and recurved; costa ending in or below the apex; upper and perichaetial leaves erect, overtopping the capsule, lanceolate-subulate, 2-3 mm. long; costa indistinct at base, broadening into and almost filling the subulate awn, the point canaliculate with incurved margins, entire or with a few teeth at the apex; basal cells linear-oblong, 8 m wide by 54 ju long. Autoicous: antheridia terminal on basal buds: seta short, 0.5 mm.: calyptra broad, lobate-mitrate: capsule pyriform, 1 mm. long, with a short, thick, stomatose neck; lid beaked, almost 0.5 mm. long; rim yellow, the cells pale and hyaline; annulus of 2 rows of orange-colored cells, falling in fragments with the lid; walls golden" brown, of irregular thick-walled cells: spores rough, papillose, 27-32 ^ in diameter, maturing in September.
Type locality: In loose gravelly soil, Sierra de San Esteban, 1500 meters alt., near Guadalajara, Jalisco.
Distribution; Known only from the type locality.