A Synopsis of the British Mosses / Containing Descriptions of All the Genera and Species, (With Localities of the Rarer Ones) Found in Great Britain and Ireland, Based Upon Wilson's "Bryologia Britannica," Schimper's "Synopsis," Etc.

by Charles C. P. Hobkirk

44. POGONATUM. P. Beauv.

275. P. nanum. Brid. St. short, not branched at apex; l. rigid spreading, lanceolate obtuse, sheathing, serrulate above; caps. almost globose, erect or inclined, lid with a curved or oblique beak; columella not winged.

Moist shady sandy banks. X. XI.

var. β. longisetum. l. long, linear-lanceolate, seta very long; caps. oval-oblong.

276. P. aloides. Brid. St. less than 1–in., branched at apex; l. rigid spreading, lanceolate, sheathing, serrate on margin and back; caps. erect, somewhat ovate-urceolate or cylindrical; lid conical beaked; columella with four wings; hairs of calyp. whitish.

Moist banks. X. XI.

var. β. minus. smaller generally; “hairs of calyp. confluent below capsule.”

277. P. urnigerum. Brid. St. 1–4in. branched above, reddish below; l. spreading linear-lanceolate from a short broader sheathing base, acute serrate; caps. narrowly cylindrical regular papillose, lid convex with a short beak.

Mountainous banks and sides of streams. X. XI.

var. β. crassum. l. broader, caps, oval-oblong, lid with a longer beak.

278. P. alpinum. Brid. St. much longer, branched above, decumbent below; l. linear-lanceolate from a sheathing base, gradually tapering, serrate, back spinulose, margin inflexed; caps. generally inclined, ovoid, tumid, smooth, lid small, with a long curved beak.

Sub-alpine localities. E. S. I. VI.

var. β. arcticum. caps. oblong sub-cylindrical. δ. campanulatum. st. short, l. narrower and shorter; caps. apophysate; calyp. campanulate.