Dicranum.'] A P L O PER I ST OM I. 97 



Hedwig's figure of this plant has much misled us in the first 

 edition of this work ; he has represented the old capsules as quite 

 smooth, although (what we hefore had omitted to ohserve,) he 

 has described them as sulcated. Hence we were induced to 

 believe that another moss, Didymodon Bruntoni of the present 

 work, was intended by Hedwig. 



With regard to the D. polycarpum, indeed, we think, and we 

 are not singular in this opinion, that it can hardly be distinguished 

 from D. strumiferum. The differences are that the capsule of 

 the former is more erect, less deeply furrowed, the struma 

 scarcely gibbous, and the leaves have a narrow recurved margin. 



13. D. fakatum; stems nearly simple, leaves long lanceolato- 



subulate falcato-secund nearly entire, capsule ovate sub- 

 cernuous strumose, lid rostrate. (TAB. XVII.) 



Dicranum falcatum. Hedw. Sp. Muse. t. 32. /. 17. Smith, Fl. 

 Brit. p. 1208. Engl. Bot. t. 1989. Schwaegr. Suppl v. 1. p. 190. 

 Funck, Deutschl. Moose, t. 21. n. 31. Hobson, Brit. Mosses, v. 2. n. 33. 

 Drummond, Muse. Scot. v. 1. n. 36. Brid. Meth. p. 53. Hook. Fl. 

 Scot. P. II. p. 132. Am. Disp. Muse. p. 32. 



Bryum longifolium. Dicks. 



HAB. On alpine rocks. 



The present species is so closely allied to D. heteromallum, 

 that we are almost tempted to consider it as merely a variety 

 of that plant. However, the struma at the base of its capsule 

 is of a very decided kind, and the leaves are more falcate. 



14. D. Starkii; stems somewhat branched, leaves lanceolato- 



subulate falcato-secund entire, capsule oblongo-ovate suberect 

 strumose, lid rostrate. (TAB. XVII.) 



Dicranum Starkii. Web. et Mohr, Fl. Crypt. Germ. Engl. Bot. t. 

 2227. Schwaegr. Suppl v. 1. p. 191. t. 46. Brid. Meth. p. 53. 

 Funck, Deutschl. Moose, t. 31. /. 32. Moug. et Nestl. n. 413. Drum- 

 mond, Muse. Scot. v. 1. n. 35. Hook. Fl. Scot. P. II. p. 132. Am. 

 Disp. Muse. p. 31. 



HAB. On alpine rocks. 



The capsules of this species are longer than those of the pre- 

 ceding, to which it bears, we must confess, a very strong- 

 resemblance. The figures in Engl. Bot., as well as in 

 Schwaegr. Suppl., represent the capsules as being longer than 

 those of any specimens we have yet seen. We found this 



G 



