ToRTULACEiE.] 272 [Barbultt. 



middle roundish-quadrate, at apex elongated. Perich. bracts elongate- 

 oblong, longly cuspidate, erect, sheathing, with plane margins, the 

 nerve longly excurrent ; seta red below, yellow above, caps, erect, from 

 ovate narrowly oblong, subincurved, brown ; lid red, long-beaked, ann. 

 narrow, teeth purple, on a very narrow membrane, 2 — 3 times twisted. 

 Male plant smaller, infl. gemmiform, bracts ovato-lanc, the nerve 

 obsolete. 

 Hab. — On the ground and walls. Fr. 4 — 5. 



Beaumaris and Aberffraw {Wilson 1830) ! ! Newton Viaduct (Wilson 1848) ! Aldrington 

 beach, Clayton and Balcombe {Mitten) ! Henfield and Tunbridge wells (Borrer 1826) ! 

 Levens {Barnes 1868) ! Coneysthorpe and Welburn, Yorks. {Spruce 1839) ! Winwick 

 quarry {Hunt). Noke, Oxford {Boswell i860) ! ! Burnley (Duerden 1867) ! ! Cromford, 

 Derby {Hunt 1863) ! ! Guildford and Shere (Capron 1868) ! ! Staddon heights (Holmes 

 1868) ! Kirriemuir (Fergusson). Shirley, Warwick (Bagnall). Carrickfergus (Moore). 

 Inchiquin (Carroll). Miller's dale (Holt 1886) ! ! Hincksey, Bucks. (Boswell). 



13. BARBULA REVOLUTA (Schrad.) Brid. 



Dioicous ; compactly tufted. Leaves oblong-lanceolate, obtuse, 

 mucronate with the thick excurrent nerve, margin strongly revolute. 

 Caps, oval-oblong, lid subulate. (T. XLI, B.) 



Syn. — Brytim stellare nitidum pallidum, capsulis tenuissimis Dill. Hist. muse. 381, t. 48, f. 44, 

 (1741) et Herb. 



Tortula revoluta Schrad. Syst. samml. kr. gew. i, n. 54 (1796), et in UsT, neu ann. xiv. 

 log (1796). Brid. Sp. muse. I, 262 (1806). Gray Nat. arr. br. pi. i, 724 (1821), 

 Hook. F1. scot. 127 (1821). Hook. Grev. in Brewst. Edin. J. i, 290 p.p. (1824). 

 Mack. F1. hibern. P. 2, 25 (1836). De Not. in Mem. ace. Torin. xl, 314 (1838), 

 Syllab. 178; Muse. ital. I, 54, t. 26 (1862), Epil. bri. ital. 550 (i86g). Spruce Ann. 

 mag. n. hist. 2 ser. iii, 377 (1849). WiLS. Bry. br. 126, t. 12 (1855). Berk. Handb. 

 br. m. 256 (1863). LiNDB. De Tort. 248 (1864). Hobk. Syn. br. m. 67 (1873). 



Barbula revoluta Brid. in Schrad. Journ. iii, P. H, 299 (1801), Mant. 95 (1819), Bry. 

 univ. i, 571 {1826). Wee. Mohr Bot. Tasch. 210 (1807). Schwaeg. Suppl. I, P. I, 

 127, t. 32 (1811). Roehl. Deutsch. fl. iii, 79 (1813). Schultz Recens. Barb, et Synt. 

 215. t. 33, f. 23 (1823). Br. Schimp. Bry. eur. fase. 13-15, p. 27, t. 14 (1842). C. 

 MuELL. Synops. i, 621 (1849). Schimp. Synops. 175 (i860), 2 ed. 213. Milde Bry. 

 siles. 114 (1869). HusN. Mouss. nord-ouest 82 (1873), Muse. gall. 108, t. 30 (1886). 

 Juratz. Laubm. oesterr.-ung. 116 (1882). 



Dioicous ; in compact subpulvinate tufts, pale yellow-green or 

 fuscescent. Leaves erecto-patent, when dry imbricated and contorted, 

 small linear-ligulate, rather obtuse, the wings revolute, nerve thick, 

 excurrent in a short mucro ; cells at base rectangular, above roundish- 

 quadrate, incrassate, papillose. Perich. bracts elongated, sheathing; 

 seta red below, straw-coloured above, caps elliptic, regular, rufo- 

 ferruginous, calyptra rather large, reaching middle of caps., annulus 

 simple, lid conico-subulate, teeth from a broader basal, membrane, very 

 slender, purple, twice twisted. Male as in B. Hornschuchii. 



Hab. — Limestone walls and the plaster of brick walls ; not uncommon. 

 Fr. 4. Lindberg states that this species is not found in Scandinavia, but 

 another closely allied occurs in Sweden, which he names B. ohtusula, more 

 robust, the leaves broader, with a thicker nerve and shorter apiculus. 



