508. H. sulcatum. Schpr. Loosely cæspitose; st. rigid, without radicles, sub-pinnate; l. partly broadly elongate-lanceolate, partly sharply lanceolate from broadly ovate base, all reflexed hamulose; nerve strong. [Schp. Syn. 699.]
Mountainous places. Ben Lawers, July, 1865 (G. E. Hunt.)
509. H. falcatum. Brid. (H. commutatum var. condensatum, Bry. Brit.) St. 2–3in. cæspitose, erect, sparingly branched; l. as in commutatum, but less circinnate and more rigid, undulate, nerved nearly to apex; capsule small, curved cernuous. [Bry. Eur. VI., 607. Schp. Syn., 613.]
Sub-alpine places and bogs. V. VI.
510. H. filicinum. Dill. St. 2–4in. sub-erect, slender, pinnate, with purplish radicles; l. spreading, falcato-secund, st. l. deltoid-ovate, tapering; br. l. ovate-lanceolate—all serrulate, scarcely twisted when dry, nerved to or beyond apex; areolæ oval, rather large, larger rhomboid and pellucid at base; caps. oblong curved, cernuous, lid conical acute: dioicous.
Marshes, wet rocks. IV.
var. β. vallisclausæ. Brid. l. sub-secund, nerve very strong and excurrent. Ormeshead; Derbyshire.
Sect. IV. St. robust, without radicles, irregularly pinnate; l. scariose, shining, strongly rugose; areolæ vermicular above, the rest small quadrate; caps. sub-arcuate, lid rostrate, annulus broad.
511. H. rugosum. Dill. St. 2–3in. rigid, erect, densely tufted; br. recurved; l. crowded, falcato-secund, serrulate and recurved at margin, lanceolate acuminate from a broad base, rugose at back, nerved more than half way; caps. sub-cylindrical curved, pale reddish brown; lid large yellowish, with an oblique beak: dioicous.
Limestone and other rocks; barren in England. Spring (?)