branched radiculose; l. squarrose, from an erect ovate base lanceolate, concave, acute, nerve excurrent; caps. smooth cylindrical, with a long beaked lid; calyp. jagged but not fringed at base.
Alpine summits. Scotland. VII. VIII.
2. Peristome single.
186. E. vulgaris. Hedw. St. about ½in. branched, radiculose; l. spreading, elliptic-lanceolate, oblong, acute or obtuse, nerve sometimes excurrent; margin plane; caps. smooth cylindrical; base of calyptra entire; perist. very fugacious.
Limestone walls, rocks, &c. III. IV.
var. β. perist. none, leaves apiculate (common).
γ. perist. none, l. obtuse and concave at apex.
δ. perist. none, l. obtuse; caps. oblique.
ε. perist. none, l. piliferous.
187. E. ciliata. Hedw. St. about ½in. radiculose; l.
oblong-ovate, margin recurved below, and toothed near apex;
gradually tapering to a point formed by the excurrent nerve,
undulate; caps. cylindrical, smooth; perist. persistent;
calyptra fringed at base.
Sub-alpine rocks. VI. VII.
188. E. rhabdocarpa. Schw. St. ½-1in. radiculose; l. spreading, erect and crisped when dry, oblong-lanceolate, nerve generally more or less excurrent into a mucro, margins plane; caps. oblong-cylindrical, striate, ribbed when dry; perist. persistent; calyp. slightly toothed at base, and roughish at apex.
Mountains in Scotland and Ireland. VII. VIII.
