Weissia.} 



MUSCI-ACROCARPI-PERISTOMI. 21 



Mountains of Clova, Scotland, in the crevices of rocks, growing with 

 Didymodon glaucescens, and Oxytropis campcstris ; Mr. T. Drnmmond. 

 Fr. August.— The leaves of this rare moss are very broad and glossy, 

 and so closely imbricated as to form a sort of bulb at the base of the 

 seta. 



*** Capsule erect, equal. Leaves linear or subulate (nerved). 



8. W. striata, Hook, and Taylor, (striated Weissia); leaves 

 linear denticulate crisped when dry, capsule ovato-turbinate 

 sulcate erect, lid obliquely subulate. Muse. Brit. ed. 2. p. 81. 

 /. 15. — x. minor; leaves linear subulate subserrulate. W. striata, 

 Muse. Brit. ed. 2. p. 81. t. 15. Drum. Muse. Scot. v. 1. n. 29. — 

 Grimmia striata, Schrad. Diar. Bot. v. 2. p. 57. Fl. Brit. p. 

 1 185.— W.fucjax, Hedw. Sp. Muse. 1. 13.— W. Schisti, Schwaecjr. 

 Suppl. p. 72. t. 80. (not E. Bot.)— Grimmia Schisti, Fl. Brit, 

 p. 1185. — (3. major; leaves broadly linear denticulate. W. denti- 

 culata, Schwaegr. Suppl. v. 1. p. 75. t. 19. 



Moist banks and crevices of rocks in alpine countries. Fr. June. 



9. W. trichodes, Hook, and Taylor, (bristle-leaved Weissia); 

 stems scarcely any, leaves subulato- setaceous entire, capsule 

 ovate striated, lid rostrate. Muse. Brit. ed. 1. p. 45. ed. 2. p. 82. 

 t. 15. Hobs. Br. Mosses, v. 1. ». 32 — Gymnostomum trichodes, 

 Mohr, Cr. Germ. — Moug. et Nestler, n. 711 — Anictangium tri- 

 chodes, Schwaegr. Suppl. v. I. p. 33. t. 12. 



On granite rocks, moistened by the spray of a rivulet, near Dublin. 

 Sandstone rocks near Henfield, Sussex, Mr. Barter. Greenfield, near 

 Manchester, Mr. Hobson. Welsh mountains, rare, Mr. W. Wilson. Ben 

 Buy, Argyleshire, and on Ben Nevis, Rev. Colin Smith. ^ Fr. Feb. — 

 There is a stout annidus present in this moss, within which and in an 

 early stage there exists a membranous horizontal ring, which eventually 

 splits into 16 short, and very obtuse teeth, becoming erect and after- 

 wards rcflexed over the mouth of the capsule. In habit, this minute 

 plant is allied to )V. pusilla and Gymnostomum Icnnc. 



10. W. cirrdta, Hedw. (curl-leaved Weissia); leaves broadly 

 subulate crispeefwhen dry, their margins recurved, capsule ovate, 



lid rostrate. Hedw. Sjp. Muse. t. Vl.f.l. Hobs. Br. Mosses, 

 r. 1. n. 31. Muse Brit. cd. 2. p, 82. & I .">. — Grimmia tirrata, 



Fl. Brit. p. 1 ls«). /;. But. t. l>3;> Grimmia Dicktoni, Fl. J hit. 



p. 1189. E. Bot. 1. 14:20. — Milium eirralum, Linn. — Ddl. Muse, 

 t. 48./ 42. 



On trees, thatched roofs, posts ami rails; chiefly, if not entirely, in 

 the middle and south of Britain, often covering old paling, ami especially 

 the horizontal pieces, on the upper side, with Bmall crowded cushion- 

 like tufts. Fr. Boring. — Nearly allied to II'. cruptda,bul distinguishable 

 by its shorter, wider, cariiiate leaves, with reriirw.l margins. 



11. \V. tmmrbttriii Hook, and Taylor, (slender-beaked 

 M \ itsta >; stem- loosely tufted elongated, leaves linear-acuminate 

 grooved 1 flexuose waved and plane at the margin, nerve opaque, 

 capsule lubobliquely cylindrical, lid rostrate erect a- long ai the 

 capsule. Mute. Brit ed. 2. r . 88. Suppl i. 3, (not goody 



