ToRTULACE.fi.] 269 [Barbula. 



t. 8 (1842). HUEBEN. Muse. germ. 329 (1833). RABENH. Deutsch. kr. fl. ii, S. 3, 106 

 (1848). C. MUELL. Synops. i, 609 (1849). SCHIMP. Synops. 171 (1860), 2 ed. 210. 

 MILDE Bry. siles. 117 (1869). HUSN. Mouss. nord-ouest 82 (1873), Muse. gall. 106, t. 

 29 (1886). JURATZ. Laubm. oesterr.-ung. 114 (1882). LESQ. JAMES Mosses N. Amer. 

 127 (1884). 



Tortula gracilis SCHLEICH. PL cr. Helv. (1807). HOOK. GREV. in BREWST. Ed. Journ. i, 

 300 (1824). DE NOT. Syll. 179 (1838), Muse. ital. I, 57, t. 28 (1862), Epil. bri. ital. 552 

 (1869). WILS. Bry. brit. 123, t. 32 (1855). LINDB. de Tort. 249 (1864). 



Dioicous ; in rather dense, low tufts, olivaceous green or fuscescent. 

 Stem simple or slightly branched, rather rigid. Leaves straight, erecto- 

 patent, when dry laxly imbricated, smooth, concave, from an ovate base, 

 lanceolate, cuspidate with the stout fuscous excurrent nerve, margin 

 revolute below, areolation minute, rectang. at base, roundish above. 

 Perich. bracts broader, the nerve prolonged into a long flexuose arista. 

 Caps, on a rigid red seta, erect or subincurved, brown, small, ovate- 

 oblong, with alongish attenuated lid ; ann. none, peristome short, orange- 

 red, slightly contorted. Male infl. gemmiform, bracts ovate, acuminate. 

 HAB. Limestone walls and sandy ground, rare. 



Durdham Downs, Bristol, ster. (Thwaites 1843) ! St. Helier, Jersey (Cardot 1885) ! ! 



Known at once by its short, aristate leaves, and perhaps overlooked 

 from its small size and sterile condition ; it is quite probable it will be found 

 in Cornwall. Mr. Thwaites's specimen is very dwarf, but it corresponds in 

 leaf-structure with the true plant. 



10. BARBULA CYLINDRICA (Tayl.) Schimp. 



Dioicous ; laxly tufted. Leaves lanceolate-subulate, patent, nerved 

 to apex, margin recurved below, plane above, cells quadrate at base, 

 obscure above. Caps, erect, elliptico-cylindric, lid conic attenuated. 

 (T. XL, D.) 



Svv.Zygotrichia cylindrica TAYL. in MACK. FL hib. P. 2, 26 (1836). 



Tortula insulana DeNoT. in Mem. ace. lorin. xl,32o (1838), Syllab. 180 (1838). BRAITHW. 



in Journ. Bot. 1871, p. 328. HOBK. Syn. br. m. 68 (1873). 

 Barbula vinealis Var. flaccida BR. SCH. Bry. eur. fasc. 13-15, p. *4 (1842). SCHIMP. 



Synops. 171 (1860). JURATZ. Laubtn. oesterr.-ung. 114 (1882). 

 Tortula vinealis WILS. Bry. br. 124, t. 42 (1855). 

 Tortula cylindrica LINDB. Bot. Not. 1865, p. 76. 

 Barbula cylindrica SCHIMP. Synops. 2 ed. 208 (1876). LESQ. JAMES Mosses N. Amer. 



125 (1884). HUSN. Muse. Gall. 106, t. 29 (1886). 

 Barbula vinealis Var. luxuriant JURATZ. in litt. 

 Barbula insulana HUSN. Mouss. nord-ouest 81 (1873). 



Dioicous; in lax fuscescent tufts, plants erect and decumbent, 

 more or less flexuose, slender I i in. high. Lower leaves more lax, longly 

 lanceolate, upper densely crowded, from a longish ovate erect base, 

 narrowly lanceolate-subulate, carinate, all patent and patulous when 

 moist, subrecurved and arching upward, subcirrate when dry, at base 



