BRYACE^E.] 181 [Bryum. 



Dioicous ; densely pulvinato-caespitose, yellow-green above with a 

 silky gloss, dark brown at base with some rufous radicles. Stems 

 | i in. high, dense leaved, with slender branches. Leaves erect and 

 imbricated when dry, erecto-patent when moist, sometimes red at base, 

 elliptic or ovato-lanc., gradually pointed, carinate-concave, margin 

 revolute to apex, entire, or with a few irregular teeth at point, nerve 

 rufescent at base, strong, excurrent in a short point, areolation dense, 

 narrowly hexagonal above, narrower at margin, quadrate-hexagonal at 

 base. Caps, on a rufous-purple seta, inclined or pendulous, obovate- 

 oblong narrowed into a slightly incurved neck, rufescent, finally 

 castaneous, scarce contracted below the mouth when dry ; lid convex- 

 conic, mammillar, shortly apiculate, rufous, shining. Teeth of per. 

 lanceolate yellow, processes of endostome perforated, with 2 3 cilia. 



HAB. Wet rocks and by waterfalls. Fr. 7 8. 



Holwick Scarr and Maizebeck, Teesdale (Spruce 1843) ! ! Slemish mountain, Antrim, 

 Ireland (Moore) ! Kilrock Quarry, Howth (Orr). Baie de Gouffe, Guernsey (Cardot 

 1885) ! ! all sterile. 



This moss in habit and colour closely resemble B. caspiticium, and it also 

 comes near B. Funckii SCHWAEG. The Teesdale specimens are densely tufted 

 and have shorter leaves than the type, while Moore's specimens are laxer 

 with a laxer areolation, probably due to a greater amount of moisture at its 

 place of growth. 



2 4 . BRYUM MUEHLENBECKII Br. Sch. 



Dioicous; in loose olivaceous-green tufts, dichotomously branched. 

 Leaves erecto-patent, imbricated, elliptic-oblong rather obtuse, incurved 

 at point, revolute at margin, nerve vanishing. Caps, pendulous, oblong, 

 ferruginous. (T. LXXIII, C.) 



SYN. Bryum alpinum Var. brevifolium MYRIN Cor. Fl. ups. 68 (1833). 



Bryum Muehlenbeckii BR. SCH. Bry. eur. fasc. 32, Suppl. t. 13 (1846). RABENH. Deutsch. 

 kr. fl. ii, S. 3, 220 (1848). C. MUELL. Synops. i, 286 (1849). WILS. Bry. br. 231, t. 48 

 SCHIMP. Synops. 366 (1860), 2 ed. 441. BERK. Handb. br. m. 194 (1863). 



ILDE Bry. siles. 216 (1869). DE NOT. Epilogo 405 (1869). HOBK. Syn. br. m. 113 

 (1873). JURATZ. Laubm. oest.-ung. 277 (1882). LESQ. JAMES Moss. N. Amer. 233 

 (1884). BOUL. Muse, de Fr. i, 253 (1884). HUSN. Muse. gall. 247, t. 67 (1889). 

 Bryum Rani AUSTIN in COULT. Bot. Gaz. ii, no. 



Dioicous ; in laxly cohering olivaceous-green opake tufts. Stems 

 repeatedly dichotomous, fastigiate, radiculose at base, flaccid. Leaves 

 densely crowded, imbricated, erect, lower ovate, upper elliptic-oblong, 

 parabolicly pointed, with the apex obtuse incurved and somewhat 

 cucullate, all carinate-concave, entire, margin revolute, nerve rufous, 

 vanishing at apex, cells much laxer than in B. alpinum. Seta red, erect, 



