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

237. O. pallens. Bruch. St. erect short tufted; l. spreading, lanceolate or ligulate obtuse, margins revolute; caps. elliptic-oblong with a large apophysis, scarcely exserted, slightly contracted at mouth when dry; striæ broad; calyp. large pale yellow hairless. Perist. of eight yellow teeth and 16 cilia.

Trees. York. VI.

238. O. stramineum. Horns. St. short tufted; l. spreading, narrowly lanceolate acuminate, keeled, margin reflexed; caps. ovate-pyriform slightly exserted, striæ broad; calyp. large campanulate purple-tipped, slightly hairy; perist. 8 teeth, and 16 (sometimes only eight) cilia; vaginula hairy.

Trees and rocks. E. S. W. VI. VII.

239. O. fastigiatum. Bruch. St. longer, tufted with fastigiate branches; l. broader lanceolate, gradually tapering to a point, sub-erect; caps. almost pyriform, scarcely exserted, with broad striæ; calyp. brownish yellow hairy; per. teeth eight, and 16 broad short cilia.

Solitary trees, Yorkshire and Sussex. V. VI.

240. O. affine. Schrad. St. ½–1in. tufted branched; l. spreading, oblong-lanceolate, with a blunt point, margin revolute and slightly undulate, strongly papillose on both sides; caps. elliptic-oblong, somewhat exserted, contracted when dry, striæ narrow. Perist. eight pale teeth and eight filiform cilia; calyp. large greenish yellow hairy.

Trees, walls, &c., common. VI. VII.

241. O. rupestre. Schl. St. 1in. or more, cæspitose, creeping at base; l. broadly lanceolate, spreading, slightly recurved; caps. pyriform, mouth large, scarcely exserted, striæ indistinct; calyp. large yellow, with long hairs; perist. 16 pale teeth in pairs (equidistant when dry), and eight cilia.

Mountainous rocks. VII. VIII.