Page:Books from the Biodiversity Heritage Library (IA synopsisofbritis00hobk).pdf/83

 oblong broad, concave, fawn-coloured, margin reflexed; nerve excurrent into a short scabrous hair point from a rounded obtuse apex; caps. cylindrical, straight or curved on a purplish seta; one-half perist. tubular: synoicous.

Rocks, Scotland. Spring.

172. Hedw. Cæspitose, branches dichotomous; l. squarrose, recurved ovate-oblong keeled, nerve excurrent into a long scabrous hair point from the obtuse apex, margin slightly recurved; caps. sub-cylindrical slightly curved; quite one-half perist. tubular; lid long conical: dioicous.

Walls and roofs.

173. Brid. Cæspitose; l. spreading obovate oblong or almost panduriform, margin slightly recurved below, nerve reddish, excurrent into a longish white hair point from the obtuse apex; caps. cylindrical, slightly curved, lid conical; one-third perist. tubular: monoicous.

Trunks of trees and rocks.

174. Brid. (T. ruralis β minor, Wils. Bry. Brit.) Smaller and densely cæspitose or sub-pulvinate; l. erecto-patent, oblong spathulate apex obtuse, nerve excurrent into a long scabrous hair point; caps. shorter than in 172: dioicous.

Limestone walls, Scotland and N. Wales. Spring.

175. Wils. Cæspitose; l. spreading obovate concave, margin plane (involute when dry), nerve thick papillose on the back, and excurrent into a smooth hair