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

78. PTEROGONIUM. Swartz.

414. Pt. filiforme. Hedw. St. creeping, with incurved fasciculate branches; l. imbricate or secund, elliptical, concave, papillose at back, serrulate at pointed apex, margin recurved; nerved half way, or shortly two-nerved at base; caps. elliptical erect; lid conical, obliquely rostrate.

Mountainous rocks and tree trunks. S. I. Spring.

415. Pt. gracile. Sw. Rhizome creeping, with arcuate stems, and incurved fasciculate branches; l. spreading, (appressed when dry) ovate, concave, acute, serrate near apex, margin not recurved, slightly two-nerved at base; caps. oblong, longer and thicker than last; lid conical, shorter, not rostrate.

Shady sub-alpine rocks and walls, and trees. XI.