Tortula.] A PL O PERI S T OM I. 55 



Acad. Cos. v. 11. p. 206. t. 32. f. 13.? Funck, Deutschl. Moose, t. 15. 



/a 



B. Hornschuchiana. Schultz, 1. c. p. 217. t. 33. f. 25. 



HAB. Banks and sandy plains. 



In the Barbula obtusifolia of Schwaegrichen, above quoted, 

 the leaves are a little broader than in the common appearance 

 of the plant, and somewhat more obtuse at the extremity. 

 Schultz's plant under the same name, may, perhaps, be dif- 

 ferent, and, as the author himself observes, is more like Bar- 

 bula unguiculata, its foliage being altogether destitute of the 

 remarkably revolute margins. 



J9. Hornschuchiana has the perichsetial leaves sheathing at 

 the base, and thence lengthened out into a subulate point, but 

 it is not otherwise different from our T. revoluta. 



2. Leaves uniform, 

 * piliferous. 



6, T. muralis ; stem very short, leaves patent narrow oblong 

 the margins recurved the nerve strong running out into a 

 hoary point, capsule oblongo-cylindrical, lid conical acu- 

 minate. (TAB. XII.) 

 . leaves with a long white hair-like point, and carinated. 



Tortula muralis. Hedw. Sp. Muse. p. 123. Swartz, Muse. Suec 

 Turn. Muse. Hib. p. 50. Smith, Fl. Brit. p. 1257. Engl. Bot. t. 2033. 

 Hook, Fl. Scot. P. II. p. 127. Hobson, Brit. Mosses, v. 2. n. 16. 

 Drummond, Muse. Scot. v. 2. n. 24. Arn. Disp. Muse. p. 37. 



Barbula muralis. Mohr. Moug. et Nestl. n. 127. Schwaegr. Suppl. 

 v. 1. p. 132. Brid. Meth. p. 61. Funck, Deutschl. Moose, t. 15. n. 11. 

 Schultz, in Nov. Act. Acad. Gets. . 11. p. 221. t. 34. /. 29. A. B. 



B. hercynica. Brid. Meth.p- ' * 



B. pilifera. Brid. Meth. p. o9. 



B. Vahliana. Schultz, I c. p. 222. t. 34. / 31. 



Bryum murale. Linn. Sp. PL p. 1581 Ditt. Muse. t. 45. /. 14. 

 )3. leaves nearly plane, scarcely piliferous. 



Barbula aestiva. Web. et Mohr, Fl. Crypt. Germ. p. 207. Schultz y 

 I. c.p. 223. t. 34. / 32. 



B. cuneifolia. Funck, Deutschl. Moose, t. 15. f. 12. 



B. mutica. Brid. Meth. p. 91. 



HAB. Walls and stones ; abundant. 



The Barbula Vahliana seems to accord well with this species, 

 D4 



