264. Z. GRACILIS. Wils. MS. St. 1in. or more, tufted, branched; l. lanceolate twisted when dry, with plane margins, and denticulate near the apex; areolæ close and punctate above, large and pellucid below.
Old walls. Malham (J. Nowell) in fr., Sept., 1866.
265. T. PELLUCIDA. Hed. St. ½–1in.; l. lower, ovate-acuminate, nerved, reddish, upper larger ovate-lanceolate 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. VIII. IX.
266. T. BROWNIANUM. 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. III. IV. (Wilson says VII.)
267. B. APHYLLA. 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.]
268. B. INDUSIATA. 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).
269. D. FOLIOSUM. W. & M. St. almost none; l. long narrow linear, flexuose, with an obscure nerve, margin plane, sometimes toothed near apex; per. l. with a pale thin blade, nerve excurrent into a long rough bristle, and the innermost divided at apex into long jointed cilia; caps. immersed, ovate, oblique, gibbous; lid conical pointed; per. teeth white.
270. A. UNDULATUM. P. Beauv. St. 1–2in. l. ligulate, margin undulate, thickened, with bi cuspid spinulose teeth, which also occur on back near apex, where lamellate nerve ceases; caps. cylindrical curved; lid with a long curved beak.
var. β. _attenuatum._ l. narrow, more crisped when dry; caps. smaller.