48. ORTHODONTIUM. Schw.
290. O. gracile. Schw. St. ½in. slender, tufted; l. long linear setaceous, carinate, flexuose, entire, faintly nerved nearly to apex; caps. obovate-clavate, gradually tapering at base into the seta, inclined; lid long, beaked; calyp. very small.
Sandstone rocks. Yorkshire and Cheshire. III.