Bryace^..] 153 [Pohlia. 



decurrent, not carinate ; comal densely crowded, oblongo-lanc, 

 serrulate at apex, margin narrowly recurved, nerve purple, vanishing 

 below apex, thick at base ; cells rather lax, thin, rhombo-hexagonal 

 above, more rectangular at base. Caps, on a flexuose reddish seta 

 suddenly bent below the capsule, subpendulous, oval-pyriform, brownish, 

 annulate, slightly constricted below the mouth ; lid conical, obtuse or 

 apiculate ; peristome pale yellow, teeth lineal-lane, basal membrane of 

 endostome reaching middle of teeth, processes gaping at the keel, with 

 2 — 3 cilia. Male plant more slender, the infl. terminal, dense, gemmi- 

 form, bracts broadly ovate, pointed, orange at base. 



Hab, — Black peaty soil on alpine rocks, rare. Fr. 8 — 9. 



Ben Nevis (Hooker 1837) ' ^6" Lawers (Hooker). Clova Mountains (Fergusson 1867) ! ! 

 Carnedd Llewellyn, N. Wales (Wilson 1843). Glen Callater and Ben Mac Dhui 

 (Wilson 1836) ! ! Ben-na-Bourd and Lochnagar (Hunt 1868) ! ! 



Var. j8. latifolia [Schimp.) Synops. 2 ed. 402. 



Plants 3 — 4 in. high, in lax soft tufts. Leaves large, broadly ovate, 

 gradually pointed, concave, the margin slightly reflexed ; obsoletely serrate 

 at apex, cells more lax. 



Hab. — Alpine bogs. 



Mickledon, Scawfell (Boswell 1872) ! ! Ben Lawers (Boswell 1873). Ben Challum 

 (Binstead 1885) ! ! Esk House, Scawfell (Dixoti 1891) ! ! 



There appears to be some confusion with respect to Schimper's varieties 

 latifolia and elata, as I cannot find specimens of either in his herbarium, or 

 that of Mr. Hunt, our specimens agree best with his description of latifolia 

 (Pyrenees, Goulard). 



10. POHLIA COMMUTATA {Schimp.) Lindb. 



Dioicous ; in erect yellow-green tufts, blackish at base. Leaves not 

 or slightly decurrent, smaller, ovato-lanc, nerve vanishing. Caps, 

 drooping, oval-oblong, lid convex, apiculate. (T. LXVIII, C.) 



Syn. — Bryuin Ludwigii plur. auct. Br. Sch. Bry. eur. fasc. 6 — 9, p. 38, t. 14 excl. Var. 18(1839). 

 BouL. Muse, de Fr. i, 279 (1884). 



Webera Ludwigii Schimp. Coroll. 67 (1856), Synops. 340 (i860). De Not. Epil. 419 

 (i86g). JuRATZ. Laubm. oester..ung. 256 (1882). 



Webera commutata Schimp. Synops. 2 ed. 403 (1876). Lesq. James Moss. N. Amer. 

 220 (1884). HusN. Muse. gall. 230, t. 62 (i88g). Limpr. in Rabenh. D. kr. fl. Laubm. 

 ii, 258 (1892). 



Bryum Schimperi WiLS. MSS. 



Bryum catenulatum Schimp. Synops. 2 ed. 471. 



Pohlia commutata Lindb. Muse. Seand. 17 (1879). Cardot in Rev. bryol. 1886, p. 28. 



Dioicous ; resembling P. Ludwigii but smaller, tufts dense, yellow- 

 green above, fuscous or blackish at base, the stem red, sparingly 



