536. H. STRAMINEUM. Dicks. St. 2–4in. erect, filiform, with few erect branches; l. erecto-patent, elliptic-oblong, obtuse, entire, concave, thinly nerved nearly to apex; cells enlarged quadrate and pellucid at basal angles; caps. small, ovate, curved, cernuous; lid short, conical. Marshes amongst _Sphagnum_; rare in fr. IV. V. 537. H. TRIFARIUM. W. & M. St. 2–3in. erect or trailing, sparingly branched; l. very closely imbricate, fragile when dry; generally but not always trifarious, roundish obtuse, inflated, entire, nerved almost to apex; caps. oval-oblong, curved, cernuous; lid conical. Alpine bogs and turfy rills. VI. (?) _Sect. XI._ Fastigiate, sparingly branched; l. imbricate secund, ventricose, faintly nerved. 538. H. SCORPIOIDES. Dill. St. 3–4in. erect or procumbent, irregularly pinnate; branches short; l. crowded, imbricate, falcato-secund, large, roundish ovate, ventricose, apiculate, entire, nerveless or faintly and shortly two-nerved, purplish brown or lurid; caps. short oblong curved, tumid, cernuous, on a long seta; lid conical, pointed. Bogs. V. _Sub-genus_ XIII. HYLOCOMIUM. St. woody, pinnate or bipinnate, or sparingly branched; l. scariose, shining, sulcate, thinly two-nerved, without radicles; cells narrow, linear, broader at base; caps. ovate or ovate-globose, coriaceous, lid mammillate, perist. large, perfect. _a._ irregularly bi-tripinnate, l. loosely imbricate; lid rostrate. 539. H. (HYLOCOMIUM) SPLENDENS. Dill. St. 2–6in., erect or procumbent, interruptedly bi-tripinnate, villous, reddish; fol. reddish or fulvous green; st. l. roundish elliptical, with long wavy points; br. l. with a short point or muticous—all imbricate concave serrate, shortly two-nerved, margin recurved below; caps. ovate, curved, cernuous; lid convex, tapering into a long beak: dioicous. Grassy banks, woods, &c. IV. _b._ irregularly pinnate, l. patent, lid mammillate or shortly beaked. 540. H. (HYLOCOMIUM) UMBRATUM. Ehrh. St. arched, sub-erect, with branched villi, irregularly bipinnate; l. yellowish green, glossy, cordate acuminate, serrate, plicato-striate, nerve unequally bifurcate; caps. short, roundish, obovate, curved, cernuous; lid conical, acute: dioicous. Alpine woods on stones. XI. 541. H. (HYLOCOMIUM) OAKESII. Sulliv. St. arched, irregularly and distantly pinnate, with branched villi; l. larger, elliptical, concave, not cordate, plicato-striate, serrate, and sharply acuminate, singly nerved half way or shortly two-nerved, margin recurved; per. l. squarrose; caps. roundish ovate, gibbous above, cernuous; lid conical, shortly beaked: dioicous. Alpine rocks. Autumn (?)