116 APLOPERISTOM1. [Didymodon. 



Trichostomum flexifolium. Smith, Fl. Brit. p. 1246. Engl Bot. t. 

 2490. Brid. Meth. p. 86. 



Bryum flexifolium. Dicks. Crypt. Fasc. 3. t. 7. 

 HAB. On sterile banks near Croydon. Mr. Dichson. 

 Roof of an old barn near Manchester. Mr. Hobson. 

 Very abundant on the moor, two miles from Buxton 

 on the Manchester road. Dr. Greville. Thatch of a 

 cottage at Bollington, Cheshire. Rev. H. S. Taylor. 

 On Ben Ledi, and mountains between Loch Earn and 

 Loch Tay; also on the Craig- Calliach mountains, all 

 in fructification. Mr. Arnott. 



Stems from half an inch long in fertile plants, to two inches 

 in sterile ones ; leaves rather succulent, singularly flexuose and 

 crisped, especially at their margins, patent or recurved; their 

 nerve disappearing below the point ; the margin at the extremi- 

 ty remarkably serrated ; fruitstalks about three quarters of an 

 inch long ; perichsetial leaves longer than the rest, and convo- 

 lute. Capsule ovate, cylindraceous, brown, smooth in our 

 specimens, striated in Engl. Bot. ; lid subulate. 



We knew but little of this moss at the time when the first 

 edition of our work was published, but it has since been found 

 in several places, and in great perfection. Upon moory places, 

 soon after the heath has been burned, it frequently abounds, 

 and fructifies principally under the shade of large stones. 

 5. D. glaucescens ; stems rather short densely tufted slightly 

 branched, leaves linear-lanceolate erecto-patent acute remark- 

 ably glaucous, capsule oblong erect, lid conico-rostrate. 

 (SUPPL. TAB. III.) 



Didymodon glaucescens. Web. et Mohr Grev. Scot. Crypt. Fl. t. 

 127. Arn. Disp. Muse. p. 35. 



Trichostomum glaucescens. Hedw. St. Cr. v. 3. t. 37. Schwaegr. 

 Suppl. v. 1. p. 145. Brid. Meth. p. 85. Smith, Fl. Brit. p. 1245. 

 Engl. Bot. t. 2381. Funck, Deutschl. Moose, t. 17. n. 5. 



HAB. Scottish mountains. Mr. Dickson. Clova moun- 

 tains, growing among Oxytropis (Astragalus) campestris, 

 on rocks slightly covered with earth. 



This was omitted in the first edition of the Muscologia Bri- 

 tannica in consequence of our ascertaining Mr. Dickson's speci- 

 mens, in Mr. Turner's Herbarium, which are referred to in 



