Trichodon tenuifolius

Trichodon tenuifolius (Schrad.) Lindb. Oefv. Sv. Vet.-Akad
Forh. 21: 225. 1864.
Trichostomum tenuifolium Schrad. Jour. Bot. Schrad. 1799»: 58. 1799. Trichoilomum cylindricum Hedw. Sp. Muse. 107. 1801. Ceralodon cylindrtcm H S C. Hryol. Eur (29-30:) Cerat. 6. 1846. Trichodon cylindricum .Schimp. Coroll. Hryol. Eur. 36. 1855.
Plants small, slender, in light-green or golden-brown tufts; stems short, seldom more than 5 mm. high, slender, simple and flcxuosc: leaves 1-2 mm. long, the ba.sc sheathing, abruptly contracted to a slender recurved and twisted apex; costa excurrent into a rough subulate awn, serrulate on the margins and back by the thickening of the Uansversc cellwalls; lower cells smooth, oblong; perichaetium erect, its leaves with a longer sheathing base. Dioicous: antheridia with subulate bracts 3 mm. long: seta slender, 10-15 mm. long, flexuose, glossy, yellow or red: calyptra cucuUate: capsule 1-2 mm. long, narrowly cylindric, straight or slightly curved; annulus of three rows of cells falling with the conic, crenate-bordered lid; peristome yellow or red, papillose; teeth slender, unequally divided nearly to the base, enlarged and more or less united at the joints below: spores smooth, 12-14 ;u in diameter, maturing from May to August.
Type locality: Germany.
Distribution: Wet sandy banks, borders of ditches and fields, western North America from Yukon and British Columbia to Montana, Nevada and Washington; also in northern Europe and Asia.