Trichostomum.~\ A P L O P E R I S T O M I. 109 



their margins recurved serrated above very much crisped 

 when dry, capsule oblong, lid rostrate. (TAB. XIX.) 



Trichostomuin polyphyllum. Schwaegr. Suppl. v. 1. p. 153. t. 39. 

 Turn. Muse. Hib. p. 35. t. 7. Smith, Fl Brit. p. 1225. Moug. et 

 Nestl n. 410. Punch, DeutschL Moose, t. 18. n. 17. Hook. Fl. Scot. 

 P. II. p. 135. Hobson, Brit. Mosses, v. 1. n. 46. Drummond, Muse. 

 Scot. v. I. n. 49. Am. Disp. Muse. p. 23. 

 Dicranum polyphyllum. Engl. Bot. t. 1$17. 

 Bryum polyphyllum. Dicks. 

 Bryum serratum. ft. Huds. 



Trichostomum cirratum. Smith, Fl. Brit. p. 1239 DM. Muse. t. 

 48./41. 



Racomitrion polyphyllum et falcifolium ? Brid. Meth. p. 82. 

 HAB. Rocks and mountains. 



This species may be easily known from the other Trichosto- 

 ma by the greater length and narrowness of its leaves, and by 

 their remarkably crisped appearance when in a dry state. It 

 grows in tufts about an inch or two inches in height, and varies in 

 colour from a light straw-yellow to a dark green. The capsules 

 are generally crowded, and the teeth of the peristome connected 

 at the base in filiform pairs. 



9. T. ellipticum ; stems short nearly simple, leaves lanceolate 

 acuminate straight their nerve broad, their margins plane, 

 capsule elliptical, lid rostrate. (TAB. XIX.) 



Trichostomum ellipticum. Hooker and Tayl. Muse. Brit. ed. 1. p. 

 63. Drummond, Muse. Scot. v. 1. n. 48. 



Dicranum ellipticum. Turn. Muse. Hib. p. 76. t. 6. Smith, FL 

 Brit. p. 1213. Engl Bot. t. 1901. Schwaegr. Suppl v. 1. p. 184. t. 47. 

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

 Campylopus ellipticus. Brid. Meth. p. 76. 



HAB. Mountain rocks. Summit of Ben Lomond, and 

 upon rocks above the head of LochEil; not uncom- 

 mon on Ben Lawers and Ben Voirlich. Very fine on 

 the mountains of Clova. Mr. Drummond. 

 The capsules of this moss have a very neat and polished 

 appearance. It may be confounded with Grimmia ovata ; but 

 as Mr. Turner, its original discoverer, has correctly observed, 

 the absence of the diaphanous points to the leaves will always 

 sufficiently define our present plant. The teeth are broad, 

 often cleft, as in Dicranum, but more deeply. The habit is 

 very nearly that of Grimmia ovata. 



