221. R. protensum. A. Braun. St. less rigid than last, and leafy at base; l. generally secund lanceolate-subulate obtuse, nerved to apex; per. l. sheathing; caps. sub-cylindrical thinner, on a pale seta; lid with a long subulate beak; calyp. lobed at base; dioicous.
Moist alpine rocks. Wales, Derbyshire, Yorkshire. IV.
222. R. sudeticum. B. & S. St. slender, decumbent and naked at base, l. spreading recurved keeled lanceolate tapering into a long whitish diaphanous denticulate point; caps. small ovoid on a short seta, lid with a shorter acute beak.
IV.
B. Branches irregular, with lateral ramuli; innov.
not fastigiate.
- L. without diaphanous points.
223. R. fasciculare. Brid. St. 1-2in., decumbent at base, with upright innovations, fasciculate; l. crowded, from a broadish erect base lanceolate spreading, muticous, margins recurved, areolæ long narrow sinuous; caps. elliptical with a long subulate lid; calyp. copiously papillose.
Rocks. III.
- * L. with diaphanous points.
224. R. heterostichum. Brid. St. ½-1in., base decumbent, branches scarcely fasciculate; l. sometimes secund, lanceolate tapering to a long white denticulate point, margin recurved, areolæ long and sinuous below, above sub-quadrate; caps. sub-cylindrical, mouth very small; calyp. somewhat papillose at apex only; lid short obliquely rostrate.
Rocks and walls. E. W. I. III.
