2. Dioicous.

a. L. lanceolate, rigid.

133. D. luridus. Hornsch. St. ¼–1in. cæspitose; l., lower ovate-lanceolate, upper larger and broader, with entire recurved margins, keeled, acute, nerved (reddish) almost or quite to apex, areolæ small roundish; caps. symmetrical oblong on a shortish seta twisted to the right; lid conical pointed; per. teeth small irregular.

Limestone walls, &c., rare. XII.

b. L. narrow, not rigid.

134. D. cylindricus. B. & S. ¼–1in.; l. spreading flexuose, linear-lanceolate, margin undulate and minutely crenulate; areolæ small opaque, gradually enlarged towards the base, there diaphanous; caps. erect, narrow, cylindrical; lid long conico-rostrate, per. teeth linear-lanceolate, fugacious.

Damp shady rocks. E. S. & I. X.

135. D. flexifolius. Hook. & Tayl. Barren stems long trailing, fertile ½in; l. spreading, flexuose, more so when dry, oblong or ligulate, margin reflexed below, and serrate at apex, nerve not reaching apex; areolæ round; caps. small cylindrical, somewhat curved, lid with a short beak; per. teeth short.

High moorlands, Buxton, Alderley Edge, Ben Ledi. III. IV.

var. gemmescens. Mitt. MS. Nerve excurrent into an apiculus, which bears a cluster of egg-shaped or oblong gemmæ.