250. O. anomalum. Hedw. Sp. Musc, (non Bry. Brit.) St. erect simple, slightly branched; l. lower patulous remote, upper erecto-patent, lanceolate from an ovate base, margin revolute; caps. ovate-oblong, 16-striate; calyp. brownish hairy; per. t. pale equidistant erect when dry. [Bry. Eur., III., t. 210. Schp. Syn. 262.]
Trap rocks, Aberdour, Fifeshire (Dr. Wood); Conway.
Summer.
251. O. Ludwigii. Schw. St. ½in. creeping; l. sub-*patent or spreading, narrowly linear-lanceolate from an ovate base, contorted when dry, margin slightly undulate; caps. obovate, striate only at summit, much contracted at mouth when dry; perist. 16 teeth in pairs, afterwards equidistant, occasionally with short cilia.
Trees. Scotland, Ireland. VIII. IX.
252. O. crispulum. Hornsch. St. very minute tufted; l. small, linear-lanceolate, scarcely crisped when dry; caps. pyriform, small, thin, with eight inconspicuous striæ.
Trees, not common. Yorkshire, Sussex, English lakes.
V. VI.
253. O. crispum. Hedw. St. about 1in. tufted; l. linear-lanceolate from an ovate base, slightly waved at margin, very much contorted when dry; caps. clavate, contracted at mouth when dry; apophysis gradually tapering into the thick seta; eight broad striæ; perist. eight teeth, and eight, sometimes 16, cilia.
Trees. VII. VIII.
254. O. calvescens. Wils. Differs from Bruchii by its shorter leaves more narrowly reticulated; calyp. scarcely
