Grimmiace^.] 14 [Grimmia. 



dry erect and spirally incumbent, when wet erecto-patent, small, 

 lanceolate, upper with hyaline points, or extended into a smooth hair, 

 the margin a little recurved, nerve narrow, vanishing at apex ; cells at 

 base narrowly rectangular, quadrate and hyaline at margin, above 

 quadrate and sinuose, upper in two strata, minute, quadrate. Perich. 

 bracts broader at base, concave, pihferous ; seta shorter than perich., 

 curved, pale yellow, cal. conico-mitriform, 5-lobed, caps, small, ovate, 

 pale reddish-brown, 8-striate ; ann. broad of 3 — 4 rows of cells, lid from 

 a convex base, short-pointed ; teeth rufous purple, lacunose or torn at 

 apex. Male plants taller and more slender; infl. terminal, inner bracts 

 oblong acute. 

 Hab. — Dry alpine rocks ; not common. Fr. 9 — 10. 



Ben Lawers (Greville) ! ! Clova (Drummond) \ Slemish mountain, Antrim, Sillagh 

 braes, Larne, Upper Lough Bray and Kylemore (Moore). Snowdon (Wilson) ! ! Glen 

 Callater (Gardiner 1844) ! ! Craigailleach (Himt 1872) ! ! Trefriew, N. Wales 

 (Dr. Wood) ! Llanberis Pass (Holt 1880) ! ! Ptarmigan Mtn. (Holt 1880) ! ! 

 Helvellyn, Red Screes, and Ingleboro' (Boswell 1858). Slieve Donard and Slieve 

 Dermot (Lett). 



This moss is readily known in the dry state by the spiral twisting of the 

 leaves, when moist it has much resemblance to G. trichophylla and MuehlenhecMi, 

 but the leaves are narrower, with the base more elongated, a narrower nerve 

 and nearly smooth hair. 



8. GRIMMIA TORaiJATA Hornsch. 



Dioicous; densely tufted. Leaves elongato-lanceolate, acute, spirally 

 contorted when dry, lower muticous, upper very shortly piliferous, margin 

 plane. (T. XLVII, E.) 



Syn. — Grimmia torquata Hornsch. MSS. Grey. Scott, cr. fl. iv, t. igg (1826). Drumm. 

 Muse. scot. II, n. 28. Hook. Tayl. Muse. br. 2 ed. 70, t. 32 (1827). Hueben. Muse, 

 germ. 197 (1833). Aongst. in Fries Summ. veg. scand. 93 (1846J. Schimp. Synops. 

 210 (i860), 2 ed. 253. Zett. Rev. Grimm, scand. 69 (i86i). Milde Bry. siles. 148 

 (1869). HoBK. Syn. br. m. 8i (1873). Juratz. Laubm. oester.-ung. 160 (1882). 

 Chalub. Grimm. Tatr. 42 (1882). Boulay Muse. Fr. 381 (1884). Lesq. James. Moss. 

 N. Amer. 140 (1884). HusN. Muse. Gall. 132, t. 38 (1887). 



Dryptodon torquatus Brid. Bry. univ. i, 772 (1827.) 



Grimmia torta Nees Hsch. Bry. germ, ii, P. I, 179, t. 24, f. 24 (1827). Hook. Br. fl. ii, 

 26 (1833). Rabenh. Deutseh. kr. fl. ii, S. 3, 161 (1848). Wil's. Bry, br. 156, t. 32 

 {1855). Berk. Handb. br. m. 241 (1863). 



Zygodon torquatus LiEBM. in Wickstrom Jahresb. 1839 — 1842, p. 430. C. MuELL. 

 Synops. i, 682, excl. descr. fr. (1849). Hartm. Skand. fl. 7 ed. 367 (1858). 



Dioicous ; densely pulvinate, the tufts very convex, soft, fragile, readily 

 falling apart, fine green above, black or rufescent below. Plants erect, 

 slender, li in. high, repeatedly dichotomous, rooting only at base. 

 Leaves erecto-patent, when dry spirally curved round the stem, oblong- 

 lanceolate, lower muticous, upper with a short hair, carinate, the margin 

 straight, erect, nerve thin and channelled, vanishing in the apex, upper 



