TORTULACE.E.] 216 [Tortula. 



Norfolk (Eagle). Castle Howard and Coneysthorpe (Spruce 1843) ! Hurstpierpoint 

 (Mitten 1847) ! Vale bridge, Sussex (Davics 1855) ! Hincksey and Great Tew, Oxon 

 (Boswell 1861). Budleigh Salterton (Dickie). Ashley mill and Green lane, Bowdon 

 (Hunt 1870) ! ! Kirkham Abbey (Hunt 1871) ! ! Shere, Surrey (C apron 1879) ! ! 

 Tunbridge Wells (Jenner 1846)! Shanklin (Salwey 1857)! Appleton lane (Wilson 

 1854) ! ! Pope's walk, Bath, <J (Mrs. Hopkins 1861) ! Button park, Warwick 

 (Bagnall) ! ! Towton, Yorks. (West 1881) ! I 



Resembling T. muralis but more slender, the leaves with a scarcely 

 revolute margin, thickened border and shorter points ; they vary in length 

 and width. All the specimens I have examined have been certainly dioicous. 



n. TORTULA CANESCENS Mont. 



Autoicous ; short, hoary when dry. Leaves oblongo-lanceolate, 

 piliferous, scarcely revolute at margin. Caps, erect, elliptic ; lid conic ; 

 peristome tubular at base for nearly half its length. (T. XXXI, F.) 



SYN. Tortula canescens MONTAGNE in Arch. Bot. i, 133, t. 4, fig. 3 (1832), et Sylloge crypt. 40 

 (1856). DE NOT. in Mem. ac. Torin. xl, 300 (1838), Syllab. 175 (1838), Muse. ital. I, 

 30, t. ii (1862), et Epil. bri. ital. 535 (1869). SPRUCE in Ann. mag. n. h. 2 ser. iii, 375 

 (1849). WILS. Bry. brit. 130, t. 43 (1855). BERK. Handb. br. m. 253 (1863). LINDB. 

 de Tort. 238 (1864). HOBK. Syn. br. m. 66 (1873). 



Barbula canescens BRUCH MSS. BR. SCHIMP. Bry. eur. fasc. 13 15, Mon. 34, t. 19 (1842). 

 RABENH. Deutsch. kr. fl. ii, s. 3, no (1848). C. MUELL. Synops. i, 625 (1849). 

 SCHIMP. Synops. 184 (1860), 2 ed. 201. BERTOL. Fl. ital. cr. 210 (1858). MILDE Bry. 

 siles. 113 (1869). HUSN. Mouss. nord.-ouest. 85 (1873). 



Desmatodon canescens JURATZ. Laubm. oesterr.-ung. 133 (1882). 



Autoicous ; short, gregariously caespitose, bright green when moist, 

 hoary when dry. Leaves patulous, oblong and oblong-ligulate, concave, 

 obtuse at apex, very minutely papillose above, margin very slightly 

 revolute, nerve excurrent in a long hair; cells at base pellucid, 

 elongato-rectangular, the rest quadrate-hexagonal. Caps, on a shortish 

 red seta, leptodermous, erect, elongato-elliptic, reddish brown, lid 

 conic, elongated, half length of caps., annulus rather broad, breaking 

 up ; per. with the basal membrane forming a pale red tessellated tube 

 for nearly half its length, teeth red, contorted. 



Male infl. gemmiform, on a slender branch, bracts ovate-oblong. 

 HAB. Channel coast, very rare. Fr. 5. 



On loose sandy earth, on face of chalk cliffs near the Lover's Seat, Hastings (Jenner 

 1844) ! ! 



Quite a Mediterranean species and resembling T. muralis, but with 

 broader leaves of laxer texture, slightly acuminate at points and the margins 

 much less recurved ; it is readily distinguished from it by the tube of the 

 peristome. 



12. TORTULA MURALIS (L.) Hedw. 



Autoicous ; compactly tufted, bright green and hoary. Leaves 

 spathulate-oblong, obtuse, the margin strongly revolute, nerve excurrent 

 in a hyaline hair. Caps, oblongo-cylindric, lid conic rostellate ; 

 peristome with a very narrow basal membrane. (T. XXXI, G.) 



