Grimmiace.e.i 70 [Ortliotrichiini . 



Syv. — Polytrichum capsiilis sessilibtis,foliis brevibns rectis carinaiis Dill. Hist. muse. 432, t. 55, 

 f. 10 et Herb. 



Orthotrichum Sturmii Hornsch. in Flora 1818, p. 341 et 1819, p. 8g. Fonck Moost. 35, 

 t. 23. Hook. Grev. Edin. J.- Sc. 1824, p. 112. Brid. Bry. univ. i, 277. Hueeen. 

 muse. germ. 383. Br. Sch. Bry. eur. Fasc. 2 — 3, p. g, t. z. De Not. Syllab. 150, Epil. 

 300. C. MuELL. Synops. i, 708. Hammar Orthot. suec. 19. Schimp. Synops. 261, 

 2 ed. 314. Berk. Handb. br. m. 221. Milde Bry. siles. 171. Hobk. Syn. br. m. 8g. 

 BouLAY 6og. Lesq. James Moss. N. Amer. 166. Vent, in Muse. gall. 157, t. 44. 



Dorcadion rupcstrc p, Sturmii Lindb. Muse. Scand. 2g. 



Orth rupestrc 8. Sturmii Jvratz. Laubm. oester.-ung. 201. 



Hab. — Basaltic rocks. 



Luggielaw, Wicklow, Fairhead and Seven Churehes (Moore 1857). Bowling {Hunt 

 1865) ! I Largo Law, Fife (Howie i86g) ! ! Knocklayd, Antrim (Stcvart 1882) ! ! On 

 trees, Glen Ogle, Perth (Horn 1887) ! I 



O. Sturmii is certainly not separable from 0. nipestre, for the bistratose 

 cells in the upper part of leaves are by no means uniform, and we find numerous 

 transition forms. The typical plant is plentiful about the bases of all the 

 Highland mountains, perhaps nowhere finer than around Schiehallion. 



3. ORTHOTRICHUM SHAWII Wilson. 



Autoicous ; in short green tufts. Leaves lanc.-acuminate, nerved 

 to apex, the cells unistratose. Capsule oval-oblong, with 8 faint bands 

 below the mouth ; teeth i6, reflexed when dry, white papillose, cilia 

 none ; calyptra hairy. (T. LV, C.) 



Syn. — Orthotrichum ornenm Wils. MSB. 



Orthotrichum Shawii WiLS. MSS. (non De Not.). Schimp. Bry. eur. Suppl. Fasc. i — 2 

 (1864) ; Synops. 2 ed. 314 (1876). Hunt in Mem. Lit. Phil. sec. of Manch. 3 Ser. 

 iii, 236 (1867). HoBK. Syn. br. m. go (1873). Vent, in Husn. Muse. gall. 165, t. 46 

 (1887). 



Autoicous ; in small lax deep green tufts, i — i in. high. Leaves laxly 

 incumbent when dry, spreading from an erect base when moist, 

 lanceolate acuminate, deeply carinate, nerved nearly to apex, recurved 

 at margin ; cells small, rectangular and hyaline at base, denser and 

 roundish quadrate above, unistratose, the papillae not prominent, 

 ■^'aginula naked, calyptra pale and glossy, with a reddish brown tip and 

 a few thin hairs ; caps, immersed, oval-oblong, leptodermous, pale 

 yellow, with 8 scarcely conspicuous bands below the mouth where it is 

 slightly contracted, rounded at base and passing abruptly into a very 

 short pedicel ; stomata superficial. 



Peristomeofi6 whitish lanceolate teeth, gaping in the divisural line, 

 densely papillose, reflexed against the capsule, cilia none ; lid conic, 

 rostellate, with a red margin. Male infl. small, axillar, the bracts ovate. 

 Ungulate, obtuse. 



