BryacEvE.] 155 [Pohlia. 



Hab. — Mountain rocks, very rare. Fr. 8. 

 Ben Lomond sterile {Dr. Siirton 1865) ! 



This is certainly distinct from .P. commutata and fruits freely when at 

 home, as by the glacier streams in Lapland and the Swiss Alps. 



12. POHLIA ALBICANS (Wahlenb.) Lindb. 



Dioicous ; in pale glaucous gi^een tufts with red stems. Leaves 

 subdecurrent, lanceolate, lower ovato-lanc, upper lane, acuminate, 

 serrate at apex. Caps, pendulous, pyriform, exannulate, lid conic. 

 (T. LXVIII, A.) 



Syn. — Bryum albicans Wahlenb. in Web. Mohr Ind. Musei. pi. cr. (1803). Roehl. Deutsch. 

 fl. iii, 92 (1813). Brid. Sp. Muse. Ill, 19 (1817), Mant. 118 (i8ig), Bry. univ. i, 656 

 (1826). Hook. Br. fl. ii, 59 (1833). C. Muell. Synops. i, 295 (1848). Wils. in Eng. 

 Bot. Suppl. t. 2836 (1840). HusN. Mouss. nord-ouest 122 (1873). Hobk. Syn. br. 

 m. Ill (1873). BouL. Muse, de Fr. i, 277 (1884). 



Bryum nigricans et B. compactum Dicks. Crypt. Ease. IV, 15, t. 11 (1801). 



Hypnum Wahlenbergii Web. Mohr Bot. Tasch. 280 (1807). 



Mnium albicans Wahlenb. Fl. lapp. 353 (1812). 



Bryum Wahlenbergii Schwaeg. Suppl. I, P. II, 92, t. 70 (i8i5). Hueben. Muse. germ. 456 

 (1833). De Not. Syllab. 115 (1838). Br. Sch. Bry. eur. fasc. 6 — 9, p. 44, t. 7 (1839). 

 Wils. Bry. brit. 228, t. 47 (1855). 



Webera albicans Schimp. Coroll. 67 (1856). Synops. 343 (i860), 2 ed. 407. Berk. 

 Handb. br. rn. 203 (1863). Milde Bry. siles. 204 (i86gj. De Not. Epilogo 420 (1869). 

 Juratz. Laubm. oester.-ung. 259 (1882). Hobk. Synops. 2 ed. 156 (1884). Lesq. James 

 Moss. N. Amer. 222 (1884). Husn. Muse. gall. 232, t. 62 (1889). 



Lamprophyllum albicans Lindb. Oefver. vet. ak. foerh. 1867. 



Pohlia albicans Lindb. Muse, seand. 17 (1879). 



Mniobryum albicans Limpr. in Rabenh. D. kr. fl, Laubm. ii, 277 (1892). 



Dioicous ; in soft pale glaucous green tufts i — 3 in. high. Stem red, 

 often decumbent at base. Lower leaves ovate and ovate-oblong, 

 acuminate, upper elongato-lanc, subdecurrent, plane, acute, serrate at 

 apex, cells narrowly rhomboid-hexagonal, nerve vanishing below apex. 

 Caps, on a long red seta, geniculate at base, inclined or pendulous, 

 shortly pyriform, with a swollen neck, glaucous green and pruinose, 

 becoming orange-brown, when old subglobose truncate and blackish ; 

 annulus none, lid small, hemispheric-conic ; teeth of per orange, cilia of 

 end. I — 2, elongated. Male plants slender, infl. discoid, terminal, 

 bracts broadly lane. 



Hab. — On clay banks and by streams in subalpine districts. Fr. 5 — 6. 



Var. yS. glacialis {Schkich.) 



Plants tall with broader leaves, more laxly imbricated, the colour of a 

 dingy or brownish hue. 



