APLOPERISTOMI. 93 



Cynodontium latifolium. Schwaegr. Suppl. v. 1. p. 110. t. 25. 



Cynodon latifolius. Brid. Meth. p. 99. 



Trichostomum latifolium. Schwaegr. Suppl. v. 1. p. 145. Funck, 

 DeutscU. Moose, t. 17. n. 7. 



Bryum piliferum. Dicks. 



Trichostomum piliferum. Engl Bot. t. 2536* 



HAB. Banks in Ireland and Scotland, chiefly in mountain- 

 ous situations. 



Specimens of this plant from Le Jardin, on the chain of 

 Mont Blanc, at an elevation of 8000 feet; those from 

 Kamtschatka, and those from Greenland, agree in having 

 shorter stems, yellower leaves, and pale-coloured narrower 

 capsules than our native specimens ; others again, gathered at 

 an elevation of 6000 feet in the Swiss Alps, perfectly accord 

 with what we have found near the level of the sea in the 

 vicinity of Dublin. The nerve is frequently so far produced 

 beyond the point of the leaf as to render the latter truly pili- 

 ferous. 



* * Leaves not apiculate. 

 \ Nerve very broad. 



6. t). longifotium ; stems elongated, leaves veiy long subulato- 



setaceous falcato-secund serrulate their nerve very broad, 

 capsule oblongo-ovate nearly erect, lid rostrate. (TAB. 

 XVI.) 



Dicrauum longifolium. Hedw. St. Cr. v. 3. t. 9. Schwaegr. Suppl. 

 v. 1. p. 176. Brid. Meth. p. 60. Moug. et Nestl. n. 318. Arn. Disp. 

 Muse. p. 29. 



HAB. In wet spots on rocks, Ireland. Upon Ben Voir- 



lich, and Ben-y-Gloe, Scotland. 



This species, which may be so easily distinguished from its 

 congeners by its long and falcate leaves, furnished with a nerve 

 occupying nearly their whole breadth, was first found in Ire- 

 land, in the county of Wicklow, under dripping rocks at Glen- 

 malur. 



7. D. cerviculatum ; stems short, leaves lanceolato-subulate entire 



subsecund their nerve very broad, capsule ovate subcernuous 

 strumose, lid rostrate. (TAB. XVI.) 



Dicranurn cerviculatum. Hedw. St. Cr. v. 3. t. 37. Turn. Muse. 



