ToRTULACEjE.] 285 \Leersia. 



SYN. Hypnum saxatile arcctiim, ramnlis teretibus, foliis subrottindis saturate viridibus DILL. 

 Cat. Giss. 220 (1719), Hist. muse. 335, t. 43, f. 71 (1741) et Herbar. 



Bryum contortum WULF. in JACQ. Coll. ii, 236, excl. syn. Dill. (1788). 

 Encalypta grandis SWARTZ in SCHRAD. Journ. ii, 172 (1799). 



Encalypta streptocarpa HEDW. Sp. muse. 62, t. 10, f. 10 18 (1801). SM. Fl. brit. iii, 

 1182 (1804), Eng. Bot. t. 2163. BRID. Sp. muse. I, 89 (1806), Mant. 30 (1819), Bry. 

 univ. i, 144 (1826). WEB. MOHR Bot. Tasch. 107 (1807). SCHKUHR Deutsch. kr. gew. 

 P. II, 45, t. 29 (1810). SCHWAEG. Suppl. I, P. I, 59 (1811). VOIT Muse. Herb. 18 

 (1812). WAHLENB. Fl. carp. 335 (1814). ROEHL. Deutsch. fl.iii, 53 (1813), Ann. Wett. 

 ges. iii, 116. MART. Fl. cr. erl. 115 (1817). HOOK. TAYL. Muse. br. 34, t. 13 (1818). 

 SCHULTZ Suppl. fl. starg. 66 (1819). FUNCK Moostasch. 12, t. 8 (1821). HOOK. Fl. 

 scot. P. II, 128 (1821), Br. fl. ii, 18 (1833). HARTM. Skand. fl. 386. GRAY Nat. arr. 

 br. pi. i, 725 (1821). WALK. ARM. Disp. meth. 23 (1825). NEES HORNSCH. Bry. 

 germ, ii, P. I, 55, t. 15, f. 7 (1827). HUEBEN. Muse. germ. 107 (1833). MACK. Fl.hib. 

 P. 2, 13 (1836). DE NOT. Syll. 264 (1838), Epil. bri. ital. 321 (1869). BR. SCHIMP. 

 Bry. eur. fasc. 4, 15, t. 7 (1839). RABENH. Deutsch. kr. fl. ii. S. 3, 172 (1848). 

 C. MUELL. Synops. i, 521 (1849). WILS. Bry. br. 145, t. 13 (1855). SCHIMP. 

 Synops. 292 (1860), 2 ed. 347. BERK. Handb. br.m. 247 (1863). MILDE Bry. siles. 183 

 (1869). HOBK. Syn. br. m. 76 (1873). HUSN. Mouss nord-ouest 112 (1873). 

 LESQ. JAMES Mosses N. Amer. 183 (1884). 



Encalypta contorta HOPPE Bot. Taschenb. BROCKM. Laubm. Mekl. 91 (1869). LINDB. 

 in Act. soc. sc. fenn. X, 268 (1872). JURATZ. Laubm. oesterr.-ung. 219 (1882). 



Leersia streptocarpa BROCKMULLER Beitr. kr. fl. Mekl. 23 (1863). 

 Leersia contorta LINDB. Muse, scand. 19 (1879). 



Dioicous ; in large coarse tufts, deep green above, fuscous and 

 densely radiculose below, the young shoots light green. Leaves 

 patulous, when dry laxly incumbent and incurved, from a clasping 

 diaphanous base, limbatewith narrow cells, oblongo-lingulate, muticous, 

 the wings sometimes incurved at apex and subcucullate, the cells 

 coarsely rotundate and strongly papillose ; nerve rufous, prolonged to 

 apex, scabrous at back. Perich. bracts from an oblong concave base, 

 suddenly acuminate, convolute, erect. Calyptra very long, narrow, 

 cylindraceous, fuscescent, fimbriato-lacerate at mouth, very rough at 

 apex ; caps, on a tall red seta, long, from ovate cylindraceous, 

 obliquely or sub-spirally orange-striate, when dry, cylindric, spirally 

 8 sulcate ; lid clavellate, orange, half length of caps.; annulus broad, 

 double, rolling back ; teeth of per. half length of caps., purple, filiform, 

 erect, remotely nodulose, minutely papillose ; endostome one half 

 shorter than peristome, of 32 yellowish filiform cilia in pairs, united to 

 the middle to a punctulate membrane closely applied to the teeth ; 

 spores very small, green, smooth. Male plant less robust, infl. terminal 

 gemmiform, bracts broadly ovate, subacuminate. 



HAB. Rocks, walls and gravelly banks, especially on limestone. Fr. 8. 



Not uncommon but very rarely fertile ; c. fr. Youlgreave, Derby (Bowman). Matlock 

 (Wilson). Bolton Bridge (Nowell) ! ! Wall of a bridge at Blair Atholl. Bridge by 

 Ossian's hall, Dunkeld (Hooker 1815) ! ! Near Lough Bray (Mackay). Jackdaw crag 

 quarry, Tadcaster (Wesley 1878) ! ! 



