34 MUSCI-ACROCARPI-PERISTOMI. [Trichostomnm. 



ff Leaves never diaphanous at their points. 



7. T. aciculdre, Beauv. (dark 3Iountain Fringe-Moss); stems 

 elongated branched, leaves lanceolate obtuse serrulate at the 

 points their nerve vanishing before the summit, capsule oblong, 

 lid rostrate. Hook. Scot. P. II p. 35. Drum. Muse. Scot. v. 1. 

 ?i. 46. Muse. Brit. ed. 2. p. 107. t. 19. — Dicranum aciadare, 

 Hedw. St. Cr. v. 3. t. 33. Turn. Muse. Hih. p. 67. Fl. Brit, 

 p. 1212. E. Bot. t. 1978.— Trick, riparium, Web. et Mohr.— 

 Dill. Muse. t. 46. f. 25, and 26. B. 



On wet rocks, frequent. Fr. Spring. — This moss has the leaves 

 singularly obtuse, and when growing in the water almost black. Some- 

 times the foliage is secund. The T. riparium, figured in Schwaegr. Sitppl. 

 v. 1. t. 39, seems scarcely different from this. 



8. T.fasciciddre, Selirad. (beardless hoary Fringe-Moss) ; stems 

 elongated branched, leaves lanceolate entire their summits never 

 diaphanous their margins recurved, capsule ovato-oblong, lid 

 rostrate. Schwaegr. Suppl. v. \. t. 38. Turn. Muse. Hib. p. 39. 

 Fl. Brit. p. 1243. E. Bot. t. 2005. Drum. Muse. Scot. v. 1. 

 n. 47. Muse. Brit. ed. 2. p. 108. t. 19. — Bryum hypnoides, 

 0. Linn.— Dill. Muse. t. 41. f. 28, and t. 46. / 26. C. 



On rocks, in mountainous districts. Fr. Spring. — Stems from 1 — 3 

 inches long, with acute entire leaves of a yellowish-green colour, by which 

 it is readily distinguished from the preceding ; as it is by the want of the 

 diaphanous serrulated points from T. canescens and its allies. 



9. T.polyphyllum, Schwaegr. (?nany-leaved Fringe-Moss); stems 

 tufted branched, leaves lanceolato-subulate their margins re- 

 curved serrated above very much crisped when dry, capsule 

 oblong, lid rostrate. Schwaegr. Suppl. v. 1. t. 39. Drum. Muse. 

 Scot. v. 1. n. 49. Muse. Brit.ed. 2. p. 108. t. 19. — T. cirratum, 



Fl. Brit. p. 1239 Dicranum polyphyllum, E. Bot. t. 1217. 



— Bryum polyph. Dicks. — Dill. Muse. t. 48. /. 41. 



Walls and rocks, in alpine districts. Fr. Spring. — This is a plant 

 very distinct from all others of the genus ; its leaves are long and 

 narrow and remarkably crisped when dry. It forms dense rounded 

 tufts, generally of a dark green colour, and loves to grow on the per- 

 pendicular sides of stone-walls especially of trap. The capsules are 

 numerous, light pale brown j the teeth bright red, connected in fili- 

 form pairs. 



1 0. T. ellipticum, Hook, and Taylor, (elliptical Fringe-Moss); 

 stems short nearly simple, leaves lanceolate acuminate straight 

 their nerve broad their margins plane, capsule elliptical, lid 

 rostrate. Muse. Brit. ed. 2. p. 109. t. 19. Drum. Muse. Scot, 

 v. 1. n. 48. — Dicranum ellipticum, Turn. Muse. Hib. p. 7 6. t. 6. 

 Fl. Brit. p. 1213. E. Bot. t. 1901. Schwaegr. Suppl. v. 1. 1. 47. 

 — Grimmia elliptica, Am. Disp. Muse. p. 21. 



Alpine rocks, Ireland, and more frequently in Scotland. Wales, Mr. 

 IV. Wilson. Fr. Spring. — The capsides of this moss have a very neat 



