γ. _apiculata._ l. spreading recurved, mucro long. δ. _microcarpa._ caps. small oval or oval-oblong. ε. _obtusifolia._ more robust, l. shorter, broader obtuse, mucro almost or altogether absent; caps. sub-cylindrical. ζ. _fastigiata._ with long fastigiate innovations; l. larger, slightly undulate. 160. T. CONVOLUTA. Hedw. Cæspitose; l. spreading oblong-lanceolate, plane or somewhat undulate in margin, nerve not excurrent; per. l. strongly convolute, sheathing; caps. inclined oblong-ovate, on a yellowish seta; lid with a long oblique beak: dioicous. Walls, &c. V. VI. 161. T. REVOLUTA. Schwaeg. Densely cæspitose, l. crowded erecto-patent oblong-lanceolate, nerve excurrent from the blunt apex, margin strongly revolute; caps. reddish brown oval-oblong, with a scarcely oblique lid; seta red: dioicous. Walls, mostly limestone. V. 162. T. HORNSCHUCHIANA. Schultz. Loosely cæspitose, l. crowded, spreading, ovate-lanceolate, gradually tapering to an acute point, formed by slightly excurrent nerve, margins slightly revolute; caps. oblong slightly curved, annulus narrow: dioicous. Rocks, walls, and banks, not common. IV. V. 163. T. VINEALIS. Brid. St. more tufted than in _T. fallax_; l. strictly patent with a stouter nerve, which is obscure towards the acute apex; the latter usually tipped with a pointed hyaline cell; appressed when dry, not crisped or contorted; caps. sub-cylindrical: dioicous. (W. Mitten, in Jour. Bot. v. 324.) Walls. IV. V. 164. T. INSULANA. De Not. (_T. vinealis_ β. _flaccida_. Bryol. Brit. 124.) St. loosely cæspitose; l. linear-subulate from a lanceolate appressed base, recurved or hooked, obliquely patent, acute, margin recurved below, above plane, nerve excurrent; contorted when dry; caps. oblong erect; lid conical attenuate, somewhat obtuse, half as long as capsule: rare in fruit. (loc. cit. 328.) England and Ireland. * [T. GRACILIS. Schw. Stem cæspitose, branches fastigiate; “l. erecto-patent, imbricated when dry, carinato-concave, margin recurved, nerve excurrent; per. l. larger, sheathing subulate, and flexuose at apex; caps. ovate-oblong or ovate; perist. scarcely contorted, with a broadish basilar membrane.”—Wils. Bryol. Brit. p. 123. Inserted from Wilson, but has not yet been certainly found in Britain.] Spring. 165. T. RIGIDULA. Hedw. (_Trichost. rigidulum_, var. β. _densum_. Bryol. Brit. 114.) l. lanceolate carinate, rigid, bristly, not appressed and imbricate, when dry slightly curved and loosely contorted; nerve stout continued into a thick obscure point, not really excurrent; fruit similar to No. 164. (loc. cit. 327.) Scotland, York, Sussex, and Cornwall.