TORTULACE^.] 264 [Barbula. 



Very variable in size and colour according to the locality, but distinguished 

 from the last species by its obtuse leaves, shorter nerve and more highly 

 developed peristome. Dickson's Bryum brevifolium is certainly identical with 

 the typical form of the plant. 



5. BARBULA FALLAX Hedw. 



Dioicous ; slender, fuscescent. Leaves lax, twisted when dry, squar- 

 rosely recurved when wet, ovate-lanceolate, margin recurved, nerve 

 vanishing at point. Caps, narrowly ovate-oblong, peristome convolute. 

 (T. XXXIX, D.) 



SYN. Muscus capillarls parvus, cauliculis tenuibus longiusculis,foliolisbrevibus angustis acutis 



rarioribus clnctis. RAY Synops. 2 ed. 31, n. 18 (1696). 

 Bryum perangustis foliis et cauliculis, foliis rarioribus cinctis, capitulis erectis e surculis 



annotinis egredientibus DILL. Cat. giss. 225 (1719), in RAY Synops. 3 ed. 99 (1724). 

 Bryum tenue barbatum, foliis angustioribus et rarioribus DILL. Hist. muse. 385, t. 48, 



f. 49 (1741). 

 Barbula fallax HEDW. Stirp. cr. i, 62, t. 24 (1787). Sp. muse. 120 (1801). BRID. muse. rec. 



II, P. I, 201 (1798), Mant. 92 (1819), Bry. univ. i, 556 (1826). WEB. MOHR Bot. Tasch. 



211 (1807). ROEHL. Moosg. deutsch. 436 (1800), Deutsch. fl. Hi, 45 (1813). SCHWAEG. 



Suppl. I, P. I, 127 (1811). WAHLENB. Fl. lapp. 318 (1812). MART. Fl. cr. erl. 89 



(1817). SCHULTZ Recens. Barb, et Syntr. 211, t. 33, f. 21 (1823). HUEBEN. Muse. 



term. 326 (1833). BR. SCHIMP. Bry. eur. fasc. 13-15, p. 23, t. 9 (1842). SCHIMP. 

 ynops. 169 (1860), 2 ed. 205. RABENH. Deutsch. kr. fl. ii, S. 3, 106 (1848). C. 



MUELL. Synops. i, 616 (1849). MILDE Bry. siles. 119 (1869). HUSN. Mouss. nord- 



ouest 81 (1873), Muse. gall. 105, t. 29 (1886). JURATZ. Laubm. oesterr.-ung. 112 



(1882). LESQ. JAMES Mosses N. Amer. 121 (1884). 

 Mollia fallax SCHRANK Bayer, fl. ii, 458 (1789). 



Bryum fallax DICKS. PI. crypt. F. Ill, 5 (1793). HOFFM. Deutsch. fl. ii, 44 (1795). 

 Tortula fallax SCHRAD. Syst. samml. kr. gew. I, n. 53, et in UST. Neu. ann. xiv, 109 



(1796). SWARTZ Muse. suec. 40 (1799). ROTH Fl. germ, iii, P. I, 212 (1800). SM. 



Fl. brit. 1252 (1804), Eng. Bot. t. 2179. TURN. Muse. hib. 47 (1804). P. 



BEAUV. Prodr. 92 (1805). BRID. Sp. muse. I, 255 (1806). SCHULTZ Fl. starg. 305 



(1806). WAHLEN. Fl. carp. 337 (1814). HOOKTAYL. Muse. br. 32, t. 12 (1818). HOOK. 



Fl. Scot. P. 2, 127 (1821), Br. fl. ii, 46 (1833). GRAY Nat. an-, br. pi. i, 724 (1821). 



MACK. Fl. hib. P. II, 26 (1836). DE NOT. Syllab. 238 (1838), Muse. ital. I, 58, t. 29 



(1862), Epil. bri. ital. 554 (1869). WILS. Bry. br. 123, t. 12 (1855). BERK. Handb. br. 



m. 257 (1863). HOBK. Syn. br. m. 69 (1873). 

 Tortula Stokesii TURN. Muse. hib. 48. 

 Barbula nervosa SCHULTZ Fl. starg. 305 excl. syn. Brid. 

 Tortula imberbis SM. Fl. brit. 1261 (1804). LINDB. De Tort. 250 (1864). 



Dioicous ; in lax wide tufts, fuscous-green above, rufescent below, 

 stems i 3 in. high, fastigiate branched, rooting at base. Leaves 

 rather lax, quickly squarroso-recurved when wet, erecto-patent and 

 twisting when dry, from a broad base narrowly lanceolate, acuminate, 

 carinate, the margin revolute in the lower half, and longitudinally plicate 

 near the base, nerve strong, rufescent, reaching apex or slightly 

 excurrent ; cells minute, yellowish, a very few rectangular at base, 

 papillose rounded and incrassate above ; perich. bracts longer, semi- 

 vaginant to the middle, thence narrowly lanceolate and patent. Caps, 

 erect, on a flexuose purple pedicel, narrowly ovate-oblong or cylindra- 



