Bryace^.] 154 [Pohlia. 



radiculose. Leaves smaller, softer, erecto-patent when moist, imbri- 

 cated and somewhat incurved when dry, glossy, scarcely decurrent, 

 carinate at back, lower ovato-lanc, upper larger oblongo- or lineal- 

 lane, more or less serrate at the pointed apex ; nei-ve strong, vanishing, 

 margin plane or reflexed at base ; cells narrower, hexagono-rhomboid. 

 Caps, on a shorter red seta, smaller oval-oblong or pyriform, pale 

 brown, lid conic, apiculate. Male plants more slender, simple ; bracts 

 ovato-lanc. 



Hab. — Wet peaty soil on the higher mountains, rare. Fr. 8, 



Ben Lawers (Wilson 1836) ! ! Ben Lomond (Stirton 1865) ! Snowdon (Hunt 1865) ! 

 Crow Road, Campsie (Bmit 1866) ! ! Lochnagar (Hunt 1868) ! 



Long confounded with P. Ludwigii, but differing in the leaves which are 

 scarcely decurrent, narrower, more pointed, more distinctly serrated and 

 carinate at back. Schimper's Byyum catenulatum appears to be only a stouter 

 more rigid form, with the leaves incurved when dry, and his Byyum filum 

 an extremely attenuated variety. 



II. POHLIA GRACILIS (SMeich.) Lindh. 



Dioicous ; stems filiform, loosely tufted. Leaves small, erect, ovate, 

 pointed, faintly serrate at apex, upper longer and more acute, nerve 

 vanishing below point. Caps, pendulous, small, ovate, lid apiculate. 

 (T. LXVIII, D.) 



Syn. — Bryum gracile Schleich. Catal. pi. helv. 4 ed. (1821). 



Bryum Ludwigii p. gracile Br. Sch. Bry. eur. fasc. 6 — 9, p. 39, 1. 14 p. (1839). C. Muell. 

 Synops. i, 333 (1849). 



Webera Ludwigii /S. gracilis Schimp. CoroU. 67 (1856). Synops. 340 (i860). 



Webera gracilis De Not. Epilogo niS (1869). Juratz. Laubm. oester.-ung. 263 (1882). 

 LiMPR. in Rabenh. D. kr. fl. Laubm. ii. 263 (1892). 



Webera commutata p. gracilis Schimp. Synops. 2 ed. 404 (1876). 



Pohlia. gracilis Lindb. Muse, scand. 17 (1879). 



Bryum commutatnm /8. gracile Boulay Muse. Fr. i, 279 (1884). 



Dioicous ; much more slender than P commutata, in loose yellow- 

 green, glossy tufts, blackish at base, with many rigid filiform shoots, 

 short in the fertile plants, elongated and often with red axillar gemmae 

 in the sterile. Leaves erect, appressed when dry, rigid, ovate and 

 ovato-lanc, short-pointed, without chlorophyl, margin plane, faintly 

 serrate at apex ; nerve thinner lost at or below the point. Caps, 

 turgidly ovate, cernuous, small, reddish-brown, lid orange, hemispherical, 

 apiculate. 



