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

b. Monoicous.

504. H. fluitans. Dill. St. 6–12in. erect or floating, pinnate, slender; branches short deflexed; l. falcato-secund, lanceolate, tapering from an ovate base, acuminate, slightly serrulate near apex, thinly nerved more than half way, areolæ enlarged at base; caps. small oblong curved sub-cernuous, on a very long seta; lid conical, acute.

Marshes, bogs, &c. IV. V.

505. H. revolvens. Swartz. St. 2–4in. erect or procumbent, sub-pinnate; l. crowded circinnate falcate, ovate-lanceolate, acuminate, concave, serrulate near apex, deep red or purplish; nerve stronger, more than half way; areolæ not enlarged at base; caps. oblong cernuous, on a shorter seta; lid conical acute.

Bogs and marshes. IV. V.

506. H. uncinatum. Hall. St. about 2in. slender, erect or procumbent, sub-pinnate; l. circinnate secund, very narrow, lanceolate, setaceous from a broader base, plicate, serrulate, nerved nearly to apex; caps. cylindrical, curved, cernuous, lid conical.

Sub-alpine walls and rocks. V. VI.

Sect. III. St. regularly pinnate, radiculose, tomentose; l. thickly nerved, opaque; caps. sub-arcuate.

507. H. commutatum. Dill. St. 4in. or more, procumbent; br. about ½in.—both more or less uncinate; radicles brownish; l. circinnate, secund, tapering to a slender long point from an ovate base, plicate, twisted when dry, finely serrulate, nerved more than half way, areolæ narrow; caps. large oblong, lid conical: dioicous.

Wet shady places. IV.