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 entire, nerve ceasing below apex, margins plane; stems bearing gemmiferous cups, l. of which are obcordate; caps. (fruit not found in England) elliptical, with a red border at mouth, on a long reddish seta.

Decaying stumps and roots of trees, common.

39. TETRADONTIUM.

266. Schwg. St. almost none, with long linear radical leaves or ramuli; per. l. ovate-acuminate, entire, shortly and faintly nerved; caps. oval-oblong, lid with an acute oblique beak.

Sandstone rocks. (Wilson says .)

40. BUXBAUMIA.

267. Hall. "Stem almost none, buried; l. lower roundish, deeply toothed, upper fringed with long ciliary processes; caps. plano-convex, roundish ovate, reddish; outer perist. irregularly sub-divided, thick and cellular." [Wilson.]

Scotland, Yorkshire, &c.; rare.

268. Brid. "Resembling the last, but caps. more erect, not flattened on the upper surface, of uniform texture and yellowish green colour, covered with a soft membrane, which ruptures on the upper surface, the margins rolling back, somewhat like the indusium of a fern; annulus narrow." [Dr. Braithwaite, Jour. Bot., viii., 226.]

On the ground and rotten trunks, chiefly in pine woods.

Near Ballater, 1847 (Cruikshank); Craigendinnie Hill, Aboyne, 1867 (Dickie and Roy).

41. DIPHYSCIUM. W. & M.

269. W. & M. St. almost none; l. long