392 llECENT ADDITIONS^ TO OUR MOSS FLORA. 



greatly inflated hyaline auricles and decurrent angles. Nerve broad, 

 occupying f of base, finely sulcate on the back toward apex, formed of 

 four strata of cells ; those of anterior layer lax and hyaline, those of 3 

 posterior much narrower and chlorophyllose. Basal areolation narrow, 

 thin, that of auricles very lax, hexagono-iectangular and hyaline, above 

 subquadrate. — Hab. Granite rocks. Snowdon (Mr. Wilson). S. of 

 Ireland. Highlands, as Ben Voirlich (M'Kinlay, 1863). Breadalbane 

 Eange ; head of Clova (Mr. Fergusson), forming great cushions. 

 Resembles the straight-leaved form of D. lotujlfolimn. 



10. C. fragilis, Br. and Schpr. Brynm fragile, Dickson, fasc. 3. p. 

 5 (1795). Dicrunnm. densnm, Funck. B. Fimkii, C. Miill. D.flexuo- 

 sum, jB. fragile, Turner, Muse. Hib. — In pale green, glossy, cushioned 

 tufts. Stem I" to 2 in. high, very fragile, clothed with rufous-purple 

 radicles to apex, ramuli fascicled, arising from axils of leaves, caducous, 

 with minute narrowly lanceolate leaves. Leaves very densely crowded, 

 erecto-patent, rigid, incumbent when dry, lower lanceolate, upper ex- 

 tended into a subula, toothed at apex, wings recurved in upper part. 

 Nerve very broad, channelled at back of 3 cell Livers, the 3 anterior 

 very lax, without chlorophyl. Areolation at base very lax and pellu- 

 cid, narrowly rectangular, without any distinct alar cells, above minute, 

 incrassate, quadrate. Capsule solitary, bent down in the perichaetial 

 leaves, oval, symmetric, fuscous, when dry plicate, contracted below 

 mouth, calyptra whitish, rufous at apex, covering \ of capsule, lid 

 conico-subulate, oblique, red. — Var. j3. densus. Dicranum densum, 

 Schleicher. C. densus, Br. and Schpr. D. Sclileicheri, C. Miill. Syn. 

 i. p. 393. Stems taller, repeatedly dichotomous ; leaves shorter, with 

 more acute, entire points, and laxer cells. — Hab. Sandstone rocks and 

 moist heaths. Mr. Fergusson sends me most beautiful specimens from 

 Glen Prosen. 



11. C. Schimperi, Milde, Botanische Zeitung, 1864, Supp. p. 13; 

 De Not. Epil. Briolog. Ital. p. 650. C. compaclns, Schimp. ms. 

 (Plate CXI. fig. 3). — In extensive very dense and. compact tufts, in- 

 terwoven with rufous tomentum, fastigiate, 1-2 in. high. Stems slen- 

 der, dichotomous, with alternate innovations, which are easily detached, 

 light silky green above, fuscous below. Leaves on all sides erecto- 

 patent, appressed when dry, straight, rigid, lanceolate subulate, chan- 

 nelled in the lower pdrt, becoming tubulose above from the converging 

 wings, denticulate only at extreme apex. Nerve very broad, occupying 



