RECENT ADDITIONS TO OUR MOSS FLORA. 393 



all widtli of leaf except about 8 rows of cells .on each side, composed 

 of 3 strata, the anterior laxer and hyaline. Cells at base lax, rectan- 

 gular, hyaline, very narrow at margin, above elliptic. — llab. Highland 

 mountains, Shetland and Hebrides, frequent ; Ben Challura (M'Kin- 

 lay, 1863); Ben Lawers (R. B. 1865). 



12. C. pyrlformU, Bridel, Bry. Un. vol. i. p. 471 ; Mitten. — Blcra- 

 num pyriforme, Schultz, Fl. Stargard. Suppl. p. 73 (1819). D.fiexno- 

 sum, Hed. Sp. Muse. t. 38. C. Jlcx/tosns, Bridel, vol. i. p. 469, 

 pro parte. C. turfacens, Br. and Schpr. Bry. Eur. D. turfaceiim, C. 

 Miill. Syn. vol. i. p. 399. — In flat tufts, olivaceous or bright green, 

 finally tawny. Stems \~V in. high, slender, erect, radiculose only at 

 base, the innovations numerous, without sterile ramuli. Leaves less 

 crowded, gradually larger upward, erecto-patent, lower lanceolate, 

 middle lanceolato-subulate, upper from an ovato-lanceolate base, sud- 

 denly setaceous. Nerve one-third width of leaf-base, thin, channelled 

 at back, obsoletely toothed at apex, of 3 cell layers, the two anterior 

 lax and without chlorophyl, Arcolation resembling that of Cflexiiosiis, 

 but thinner, narrowed toward the margin and at the subdecurrent 

 angles, hyaline at base. Fruits several from the same apex, calyptra 

 whitish with the tip brown, reaching one-half length of capsule, 

 pedicel suddenly bent down in middle, theca ovate, olivaceous, when 

 ripe fulvous, sulcate, lid obliquely rostrate, red. — Var. /S. Miilleri. 

 C. Miilleri, Juratzka. Leaves caducous, calyptra without any fringe. 

 Hab. Moist heaths and sides of ditches, common all round London, 

 lleadily distinguished from C. Jlexnosus and fragills by the form and 

 structure of the leaf base. I adopt the earliest name, though quoted 

 by Schimper and others with doubt, perhaps because Schultz describes 

 it " capsula glabra, nee striata; " but the rest is excellent. 



13. C. brevifoUus, Schpr. Muse. Eur. Nov. fasc. 1 and 2 (1866). 

 C. subiilatus, Schpr. Milde in Bot. Zeit. 1862, p. 460.— In short flat- 

 tened yellowish-green patches without tomentum, rooting only at base. 

 Stem \ in. high, once or twice dichotomous, with caducous ramuli. 

 Leaves short, rigid, erect, lanceolate, longly acuminate, concave, obso- 

 letely toothed at extreme apex. Nerve occupying half width of leaf- 

 base, composed of four strata of cells, the two anterior lax and empty, 

 the two posterior narrower, the inner one alone containing chlorophyl. 

 Basal arcolation hyaline, rather lax, rectangular, the cells gradually 

 becoming shorter and more quadrate ; the lower with their transverse 



