98 APLOPERISTOM1. [Dicranum. 



moss on Ben Nevis, growing to the size of four or five 

 inches, with the leaves large in proportion, yet differing in 

 no other particular from the general appearance of the plant. 

 It is also common in the same state on the Cairngorum moun- 

 tains, Ben-y-Gloe, and Ben Lawers. This moss has perichae- 

 tial leaves, not unlike those of D. scoparium. 



-l h- Capsule without a struma. 



15. D. flavescens ; stems branched, leaves long lanceolate serrulate 

 pointing in all directions crisped when dry, capsules oblong- 

 erect, lid rostrate. (TAB. XVII.) 



Dicranum flavescens. Engl. Bot. t. 2263. Smith, FL Brit. p. 1224. 

 Brid. Meth. p. 63. Drummond, Muse. Scot. v. 2. n. 40. Hook. FL 

 Scot. P. II. p. 132. Am. Disp. Muse. p. 30. 



Dicranum gracilescens. Web. et Mohr. Schwaegr. Suppl. v. 1. p. 

 180. t. 46. Funck, Deutschl Moose, t. 21. n. 22.? 



Bryum flavescens. Dicks. 



HAB. On wet sand, under the banks of rocky rivers. 

 We have some doubt in quoting the synonym of Mohr, as 

 he describes his plant to have longer capsules. 



16. D. squarrosum ; stems somewhat branched, leaves from a 



broad sheathing base lanceolate obtuse recurved and patent 



directed to every side crisped when dry? capsule ovate sub- 



cernuous, lid rostrate. (TAB. XVII.) 



Dicranum squarrosum. Schrad. Journ. an. 1802. Turn. Muse. Hib. 



p. 69. Smith, Fl. Brit. p. 1225. Schwaegr. Suppl v. I. p. 182. t. 47. 



Engl Bot. t. 2004. Moug. et Nestl. n. 246. Hobson, Brit. Mosses, v. 



1. n. 39. Hook. Fl. Scot. P. II. p. 133. Drummond, Muse. Scot. v. 



1. n. 41. Arn. Disp. Muse. p. 30. Brid. Meth. p. 50. 



Bryum palustre. Dicks Dill. Muse. t. 46. / 24. 



HAB. In very wet situations among mountains. 



The stems vary in length from one to three inches. This is 

 the most squarrose of the British Dicrana. 



Mr. Arnott observes to us that this moss has a decided 

 struma, and that Bridel has arranged it in the division " cap- 

 sula strumosa" Upon examining perfect capsules, we confess 

 ourselves unable to see any thing of the kind ; so that at any 

 rate, this character is not constant. 



17. D. pellucidum ; stems branched, leaves lanceolate their mar- 



