100 APLOPERISTOMI, [Dicranum. 



Bryum vaginale. Dicks. 



HAB. On moist banks. 



This species has a strong resemblance to the D. Schreberia- 

 num of Hedwig and this work, which, however, decidedly dif- 

 fers by its shorter and wider leaves, by its inclined capsule and 

 shorter lid. 



20. D. Scottianum ; stems branched, leaves erecto-patent directed 

 to every side subulate, their margins plane subserrated crisped 

 when dry, capsule ovato-cylindraceous nearly erect, lid with 

 a long beak. (TAB. XVIII.) 



Dicranum. Scottianum. Turn. Muse. Hib. t. 6. / 1. Smith, Fl. 

 Brit. p. 1226. Engl. Sot. t. 1977. Hook. FL Scot. P. II. p. 133. 

 Arn. Disp. Muse. p. 31. Hobson, Brit. Mosses, v. 2. n. 35. 



Dicranum flagellare. Hedw. St. Cr. v. 3. t. 1.9 Funck, Deutschl. 

 Moose, t. 20. n. 14. 9 Smith, Fl. Brit. p. 1206. Engl. Bot. n. 1977. 

 Moug. et Nestl. n. 511. 



Dicranum montanum. Hedw. Sp. Muse. p. 35. ? Smith, FL Brit, 

 p. 1228. Schwaegr. Suppl. v. I. p. 178. Funck, Deutschl. Moose, t. 20. 

 n. 18. Moug. et Nestl n. 614. 



Dicranum strictum. Schwaegr. Suppl. t. 43. 



Campylopus Scottianus. Brid. Meth. p. 72. 



HAB. On rocks in mountainous districts. 

 This plant differs from Hed wig's D. flagellare principally by 

 the direction of the leaves, which in the latter are constantly 

 secund, yet we shall not be surprised if future observations on 

 authentic specimens may prove them to be the same. We can 

 find D. montanum, Hedw. to differ only by the smaller size, and 

 perhaps by its somewhat wider capsule ; but even in this par- 

 ticular we find native specimens of our plant to vary. If we 

 may pronounce from Schwaegrichen's figure and description, 

 we should suppose his D. Hostianum to be also the same as our 

 plant. 



22. D. undulatum; stems elongated, leaves nearly plane lanceo- 

 late attenuate serrulate at the points transversely undulate, 

 capsule cylindraceous cernuous, lid with a long beak. (TAB. 

 XVIII.) 



Dicranum undulatum. Ehrh. (not of Schrad.J Turn. Muse. Hib. 

 p. 59. Smith, FL Brit. p. 1203. Engl. Bot. t. 2260. Drummond, Muse. 

 Scot. v. 1. n. 34. Hook. Fl. Scot. P. II. p. 133. Arn. Disp. Muse. p. 

 30. 



