102 APLOPERISTOMI. [Dicranum. 



woods as well as in open bogs, is liable to no small degree of 

 variation in size as well as in the direction of the leaves. The 

 larger variety, with more falcate leaves, has been distinguished 

 by the name of D. majus ; while on the other hand, the smaller 

 plant, with leaves scarcely, if at all secund, has been called D. 

 fuscescens. 

 24. D, varium ; stems short, leaves narrow hastato-lanceolate, 



capsule ovate, lid rostrate. (TAB. XVII.) 



. viride; leaves pointing in all directions, lanceolate, green; capsules sub- 

 cernuous. 



Dicranum varium. Hedw. St. Cr. v. 2. t. 34. Turn. Muse. Hib. 

 p. 65. Smith, Fl. Brit. p. 1209. Engl Bot. t. 1215. Hobson, Brit. 

 Mosses, v. 1. n. 42. Moug. et Nesil. n. 718. Drummond, Muse. Scot, 

 v. 1. n. 39. Hook. Fl. Scot. P. II. p. 134. Am. Disp. Muse. p. 32. 

 Schwaegr. Suppl v. I. p. 174. Brid. Meth. p. 61. Funck, Deutschl. 

 Moose, t. 20. n. 11. 



Dicranum rigidulum. Swartz, Muse. Suec. t. 3. /. 7. Hedw. Sp* 

 Muse. t. 32. Schwaegr. Suppl. v. 1. p. 174. Smith, Fl. Brit. p. 1211. 

 Brid. Meth. p. 61. Funck, Deutschl. Moose, t. 20. n. 10. 

 Dicranum callistomum. Smith, Fl. Brit. p. 12,11, 

 Bryum callistomum. Dicks. 

 /3. rufescens ; leaves subsecund, lanceolate-subulate, reddish ; capsules erect. 



Dicranum rufescens. Turn. Muse. Hib. p.. 66. Engl. Bot. t. 1216. 

 Smith, FL Brit. p. 1210. 



Bryum rufescens. Dicks Dill. Muse. t. 50. /. 59. 



7. luridum ; leaves subsecund, subulate, of a lurid colour; capsules sub- 

 cernuous. 



HAB. On moist banks. 



After an attentive examination of numerous specimens of D. 

 varium, and D. rufescens, we have considered it most prudent 

 to make the latter a variety; for notwithstanding that D. 

 varium, in occasional plants, has leaves decidedly falcate, of a 

 greener colour, and firmer texture, with an entire margin, and 

 its capsules inclining; while some individuals of D. rufescens 

 have their leaves of a reddish colour, with an evident reticula- 

 tion, serrated margin and with erect capsules; yet we have 

 met with specimens partaking so much of the characters of both, 

 that it seemed impossible to determine to which they should be 

 referred. Our var. y. has leaves still longer than those of 

 rufescens^ but not serrated, nor so strongly reticulated; with 

 the capsules as in a. We cannot find the D. rigiduhim, and 



