Dicranum.] MUSCI-ACROCARPI-PERISTOMI. 41 



Bogs, Yorkshire, Mr. Teesdale. Kinnordy, Scotland, C. Lyell, Esq.; 



always sterile. Fr. . — The teeth of the peristome of' this and 



some other Dicrana have sometimes 3 segments. 



19. D. crispum, Hedw. (curl-leaved Fork-dloss) ; steins 

 short, leaves from a sheathing base setaceous nearly distichous 

 flexuose recurved crisped when dry. capsule ovate erect, lid 

 with a long- beak. Hedw. St. Cr. v. 2. t. 33. Turn. Muse. Hib. 

 p. 65. Fl. Brit. p. 1207. E. Bot. t. 1151. Schwaegr. Suppl. 

 v. I. p. 179. Brum. Muse. Scot. v. 1. n. 38. Hobs. Br. Mosses, 

 v. 2. n. 34. Muse. Brit. cd. 2. p. 100. t. 17. — Bryum vaginale, 

 Bicks. 



Moist hanks. Fr. Nov. — In size and general appearance, this is al- 

 lied to D. Schrebe/ianum ; hut that has shorter and broader leaves, an 

 inclined capsule and shorter lid. 



20. D. jlagelldre, Hedw. (upright-fruited Fork-Moss); steins 

 branched, leaves subulate their margins plane subserrated more 

 or less crisped when dry, capsule cylindrical nearly erect equal, 

 lid with a very long" beak u. leaves falcato-secund. B. flagel- 

 lar^ Hedw. St. Cr. v. 3. t. 1. Fl. Brit. p. 1206. E. Bot. 

 t. 1977, (left-hand figure). — ,3- leaves directed to every side. 

 B. Scottianum, Turn. Muse. Hib. p. 75. t. 6. f. 1. Fl. Brit. 



j). 1226. E. Bot. t. 1391, and t. 1977, (right-hand figure, as 

 B.fiagcllarc). Hobs. Br. Mosses, v. 2. n. 35. Muse. Brit. ed. 2. 



p. 100. t. 18. — B. nwntanum, Hedw, Sp. Muse. p. 14.'). /. 35. 



f 8—13? FL Brit. p. 1228.— B. strictum, Schwaegr. Suppl 



*<. 43. v. \.p. 188. 



Among rocks, in mountainous situations, especially in the South of 

 Ireland, where Mr. Wilson finds both a. and /3. Xear Llanberia 

 Lake Mr. W. Pal«rave has detected £. At Glengariff, Wilt. Near 

 Plymouth, Rev. J. S. Tozcr. Fr. Sept. — Mr. Wilson has found the I). 

 Scottianum with haves so decidedly falcate that I have no hesitation in 

 considering that state of the plant to he the true I), flagellare of Hedw.; 

 hut with us it is far lesfl common than that with the leaves directed 



to all sides and which are usually crisped when dry. I have, however, 

 restored the older name of riedwig. 



21. I), unduldtum, Ehrh. (waved-leaved Fork-Moss)} Mem.. 



elongated, leaver nearly plane hinecolate attenuate Bemilate at 



the points transversely waved, capsule cylindraceous cernuous, 

 lid with a long heaU. Ehrh. ('////it. (//<>/ qf Schrad.) Turn. 

 Muse. Ild,. p. 59. Fl. Brit, p. L203, /■/. Bot t 2260. Drum. 

 Muse. Scot r. 1.//. 34. Muse. lint. id. :.'. />. 100. /. I*.— 



D.polysetum, Sw Schwaegr. Suppl. /-. [,p. 165. '. 41. 



Woods and rocks. Fr. Aug. — Prom the large pericheetia of this 

 moss, 2, 3 and sometimes as manj b trise The transverse un- 



dulations of the leave* become much more evident when the plant is 



drj than in a recent State. 



22. D. sio/niriiiiii. Hedw. (Broom Fork-Moss); items elon- 

 gated, leaves narrow subulate canaliculate second, capsule cylin- 

 draceous arched cernuous, lid with a long beak. Muse. Hi it. 



