388 RECENT ADDITIONS TO OUll MOSS FLORA. 



3. C. brempilits, Br. and Schpr. Bry. Eur. — D. hrempilmn^ C. MiiH. 

 Syn. vol. i. p. 412. C. declpiem and Mulkenhceri, Van der Sande- 

 Lacoste. — In dense broad tufts, coliering only at base, stiff and fragile 

 when dry, glossy yellow-green above, fuscescent below. Stems slender, 

 f-ly in. high, almost free from radicles, fastigiate ; the innovations 

 fascicled and often tliickened at apex. Leaves erect, appressed when 

 dry, densely crowded, narrowly lanceolate-subulate, very concave and 

 subtubular, the point denticulate at margin and back. Nerve one- 

 third width of leaf-base, and one-quarter of lamina above ; smooth at 

 back, extended into a short hair-point, composed of three layers of 

 small cells, the central larger and hyaline. Perichsetial leaves wider, 

 sheathing, suddenly narrowed into a hispid hair, recurved at margin 

 above the base. Areolation lax ; basal cells quadrate, hyaline or in 

 part yellowish, those above rhomboidal, flexuose, the marginal ones 

 very narrow ; female flower solitary. — Hab. Heathy places. Press- 

 ridge Warren, Sussex, and Matley, New Forest (Mr. Davies). Oake- 

 mere, Cheshire, and Arran (Mr. Hunt). Glen Prosen (Mr. Fergus- 

 son). Strensall Common, York (Mr. Wilson). C. adustus, De Not. 

 (Epil. della Briol. Ital. p. 649), appears to be a depauperated variety. 



3. G. introjlexus, Bridel, Mant. Muse. p. 72 ; Mitten, Journ. Linn. 

 Soc. vol. xii. p. 84. — Dicraunm introjlexiim, Hed. Sp. Muse. t. 29 

 (1801). C. plUfer, Brid. Mant. Muse. p. 72. C. longipilus, Brid. 

 Bry. Un. vol. i. p. 477, pro parte. Br. and Sch. Bry. Eur. vol. i. 

 C. pohjtricJioides, De Not. Syll. Muse. 300 (1838); Schpr. Muse. 

 Eur. Nov, fasc. i. and ii. C. lencotrichus, Sullivant, Muse. United 

 States. B. ericetortmi, Mitt. Journ. Linn. Soc. vol. i. Supp. p. 20. — 

 Tufts dense, sometimes widely extended, stiff wben dry, olivaceous, 

 brown below, the innovations yellow-green with hoary tips. Stems f 

 to 1| in. high, sparingly radiculose, dichotomous. Leaves rather 

 densely imbricated, erecto-patent, lanceolato-subulate, channelled ; the 

 wings but little incurved, the comal leaves broader and lanceolato- 

 acurainate, all (except the lowest, which are muticous) prolonged into 

 a diaphanous spinuloso-denticulate arista, shorter than the leaf. Nerve 

 occupying three-quarters of limb, lamelluligerous at back, of 4 strata of 

 cells, the upper lax and without chlorophyl. Basal cells hyaline, large 

 and empty, the rest clilorophyllose, gradually becoming obliquely oval 

 and minute, a few fuscous alar cells evident in the comal leaves. 

 Perichsetial leaves oblong, convolute, subulate at apex, with a narrow 



