and less opaque; caps. oblong, almost horizontal; lid conical, without beak: dioicous.
Ben Lawers. Barren. Summer (?)
452. H. (Eurynchium) catenulatum. Schwg. St. about ½in. creeping, with erect very slender branches; l. very small, ovate acute, entire concave, margin recurved below, broadly nerved half-way or more; caps. oval-oblong slightly curved, sub-erect or cernuous; lid large, with a distinct beak: dioicous.
Alpine and sub-alpine rocks. Summer.
Scotland; Yorkshire. Fr. not known in Britain.
453. H. (Eurynchium) heteropterum. Bruch. St. procumbent, more or less pinnate, often rooting at apex; l. ovate-acuminate, small, more or less secund, denticulate, somewhat papillose at back; nerved singly half way, or short and forked; caps. oblong, scarcely curved, almost erect; lid with a long beak: dioicous.
Moist rocks near waterfalls. xi.
Ireland, Wales, Todmorden.
454. H. (Eurynchium) circinnatum. Brid. St. short, sub-erect arched: branches curved and drooping; l. very small ovate, pointed, sub-secund, serrulate at apex, thickly nerved nearly to apex; areolæ oval, smaller and quadrate at base; caps. oblong cernuous, curved; lid large, with a long oblique or curved beak: dioicous.
Shady limestone rocks and walls. III.
455. H. (Eurynchium) striatulum. Spruce. St. short creeping, tufted; branches short crowded, erect; l. erecto-patent, ovate, long taper pointed, serrate, sub-striate,
