GRIMMIACEJJ.J 20 (Grimmia. 



only in one wing ; cells shortly quadrate above, rectangular and faintly 

 sinuose at mid-base, quadrate at margin. Pencil, bracts sheathing to 

 the middle, then suddenly lanceolate, subulate and recurved. Caps, on 

 a longish cygneous pale seta, obliquely decurved, ovate or oblong, 

 8 costate, pale yellow, finally brown, annulus broad of 45 rows of 

 large cells ; lid yellow-red, with a short straight beak ; teeth longish, 

 red, connivent when moist, erecto-patent when dry, cleft to middle or 

 lanceolate and rimose in the median line. Male plants more slender 

 and simple, infl. terminal, bracts broadly ovate, obtusely pointed. 

 HAD. Sandstone and calcareous rocks and walls.* Fr. 5 6. 



Dunkeld and Blair Athol (Greville) ! Arthur's seat, Trossachs (McKinlay 1864) ! ! 

 Wemys Bay (Hunt 1865) ! ! Campsie and Bridge of Lochay (Hunt 1866) ! ! Ballater. 

 Barrowfield (Banics 1866) ! Frodsham, Cheshire (Robinson 1865) ! Wales (Wilson) ! ! 

 Sussex (Mitten). Dublin and Luggielavv (Moore). Slieve Donard (Lett 1864) ! 

 Bryansford, Down (Waddell 1883) ! Penzance (Ctirnow) ! Malham, Cheedale, and 

 I. of Man (Holt 1885) ! ! Hatton, Staveley, and Windermere (Binstead 1886, named 

 G. anomala) ! ! Devon (Holmes). Rowsley (Boswell 1874). Stoneleigh and Lapworth 

 (Bagnall). 



A widely distributed and very variable species, known from G. pulvinata 

 by its large lax tufts, narrower tapering leaves, and costate capsule, while 

 G. Muehlenbeckii differs by the shorter smooth capsule and spinulose hairs, 

 and G. decipiem by its autoicous infl., more robust habit and denser foliage. 

 A form occurs on exposed mountain rocks, in dense stunted dark brown 

 tufts, in which most of the leaves are muticous, the upper only having very 

 short hair-points. G. anomala SCHIMP. has shorter non-sinuose areolation, 

 with the margin bistratose in 2 7 rows of cells. 



14. GRIMMIA HARTMANI Schimp. 



Dioicous ; in tall lax yellowish-green tufts, naked at base. Leaves 

 somewhat secund, oblong-lanceolate, with short smooth or toothed hair- 

 points, carinate, revolute at margin ; basal cells rectangular, becoming 

 quadrate at margin, upper rounded-quadrate. (T. XLVIII, F.) 



SYN. Grimmia inctirva (non SCHWAEGR.) HARTM. Skand. fl. 5 ed. 376 (1849). 



Grimmia Hartmani SCHIMP. Synops. 214 (1860), 2 ed. 258. ZETTERST. Rev. Grimm. 



scand. 77 (1861). JURATZ. in Bot. Zeit. 1866, p. 177, Laubm. oester.-ung. 163 (1882). 



BERK. Handb. br. m. 240 (1863). MILDE Bry. siles. 150 (1869). BRAITHW. in Journ. 



? \ 7 \ P ' IQ7> t- I24 ' HOBK ' Syn " bn m " 82 ( I8 73)- CHALUB. Grimm. Tatr. 49, t. 6 



in Rev bf o" L ?88 MUSC ' ^ 3?6 (l884) ' HUSN ' MUSC> gaU- I35> *' 39 (l88?) ' PHILIB " 

 Grimmia spharocarpa STIRTON in Scott, nat. ix, 36 (1887). 



Dioicous ; in large lax dense-leaved tufts, fuscous below, yellowish- 

 green above, blackish at base and deep green above when growing in 

 wet places. Stems procumbent, naked at base, elongate, 23 in. long, 

 arcuate-ascending, rigid, with few branches. Leaves when dry loosely 

 incumbent, crisped and incurved, when moist recurved, then divergent 

 and ascending at point, from a small ovate base, elongate-lanceolate, 



