TORTULACE.E.] 281 [Leersia. 



HAB. Ben Laoigh, Perthshire (Holt, July, 1880) ! ! 



This species is best distinguished by the smaller dense cells in the upper 

 part of the leaf, which is also more acuminate than in any of our other 

 species. 



2. LEERSIA EXSTINCTORIA (L.) Leyss. 



Autoicous ; short, radiculose. Leaves oblong-lane., obtuse or 

 apiculate with the excurren. nerve. Caps, cylindric, smooth ; calyptra 

 pale, entire at base, scabrous at apex ; per. none or pale and very 

 fugacious. (T. XLII, B.) 



SYN. Muscus trichoides minor pileis magnis acutis MERR. Pinax 89 (1667). RAY Synops. 

 2 ed. 324 (1696). 



Adiantum aureum perpusillum foliis congestis acutis, pileolo extinctorii figura RAY Synops. 



2 ed. 32, n. 24. 

 Bryum erectis capitulis, calyptra laxa conica, foliis serpylli pellucidi angustioribus DILL. 



Cat. Giss. 223 (1719), in RAY Synops. 3 ed. 92 (1724). 



Bryum calyptra exstinctorii figura, minus DILL. Hist. muse. 349* t. 45, f. 8 (1741) et 

 Herbar. 



Bryum exstinctorium L. Sp.pl. 1116 (1753); Syst. nat. ii, 701. HUDS. Fl. angl. 405 

 (1762). WEISS Cr. goett. 185 (1770). NECK. Meth. muse. 207 (1771). WITH. Bot. 

 arr. br. veg. ii, 672 (1776). LIGHTF. Fl. scot, ii, 718 (1777). WEB. Spic. fl. goett. 98 

 (1778). RELH. Fl. cant. 402 (1785). SM. Eng. bot. t. 558. Fl. dan. t. IQOI. ABBOT 

 Fl. bedf. 239 (1798). HULL Br. fl. P. 2, 258 (1799). 



Leersia vulgaris HEDW. Fund. II, 88 (1782), Muse, frond, i, 46, t. 18 (1787). ROTH 

 Fl. germ, i, 455 (1788). TIMM Fl. meg. n. 730 (1788). SCHRANK Baiers fl. ii, 443 

 (1789). BRID. Muse. rec. II, P. I, 51 (1798). 



Leersia exstinctoria LEYSSER Fl. hal. n. 1053 (1783). BROCKM. Beitr. kr. fl. Mekl. 23 

 (1863). 



Mnium exstinctorium SWARTZ Meth. muse. 365 (1787). 



Encalypta exstinctoria SWARTZ Muse. suec. 24 (1799). HARTM. Skand fl. WAHLENB. 

 Fl. upsal. 385 (1820). BROCKM. Laubm. Mekl. 90 (1869). 



Encalypta vulgaris HEDW. Sp. muse. t. 60 (1801). SM. Fl. brit. iii, 1180 (1804). TURN. 

 muse. hib. 17 (1804). ROEHL. Moosg. deutsch. 89 (1800), Deutsch. fl. iii, 52 (1813), 

 Ann. Wett. ges. iii, 115. P. BEAUV. Prodr. 56 (1805). SCHULTZ Fl. starg. 281 (1806). 

 WEB. MOHR Bot. Tasch. 106 (1807). BRID. Sp. muse. I, 88 (1806), Mant. 28 (1819), 

 Bry. univ. i, 139 (1826). SCHWAEG. Suppl. I, P. I, 56 (1811). VOIT Muse. herb. 20 

 (1812). WAHLEN. Fl. lapp. 311 (1812), Fl. carp. 335 (1814). MART. Fl. cr. erl. 115 

 (1817). HOOK. TAYL. Muse. br. 35, t. 13 (1818). GRAY Nat. arr. br.pl. i, 725 (1821). 

 HOOK. Fl. scot. P. 2, 128 (1821), Br. fl. ii, 18 (1833). FUNCK Moost. n, t. 7 (1821). 

 NEES HORNSCH. Bry germ, ii, P, I, 32, t. 14, f. r (1827). HUEBEN. Muse. germ. 98 

 (1833). MACK. Fl. hib. P. 2, 13 (1836). BR. SCHIMP. Bry. eur. fasc. 4, p. 9, t. 2 (1839). 

 DE NOT. Syll. 269 (1838), Epil. bri. ital. 324 (1869). RABENH. Deutsch. kr. fl. ii, S. 3, 

 169 (1848). C. MUELL. Synops. i, 516 (1849). WILS. Bry. br. 142, t. 13 (1855). 

 SCHIMP. Synops. 286 (1860), 2 ed. 341. BERK. Handb. br. m. 246, t. 22, f. i (1863). 

 MILDE Bry. siles 181 (1869). HOBK. Syn. br. m. 75 (1873). HUSN. Mouss. nord-ouest 

 in (1873). JURATZ. Laubm. oesterr.-ung. 214 (1882). LESQ. JAMES Mosses N. Amer. 

 181 (1884). 



Encalypta Orsinii DE NOT. Syllab. 267 (1838). 



Encalypta leptodon Var. exstinctoria LINDB. in Act. soc. sc. fenn. X, 268 (1872). 



Autoicous; densely tufted, radiculose at base, dark green, with 

 short thick branches. Leaves erecto-patent, when dry incurved and 

 subcomplicate, lingulate, apiculate or obtuse, subundulate, nerve strong, 

 reddish, vanishing at or below apex or excurrent ; cells at mid-base 

 more laxly rectangular, very thin, at margin narrow and yellowish. 



