DICRANACEJE.] 156 . [Dicranum. 



generally giving off from the axils of upper leaves, numerous filiform 

 shoots, with minute lanceolate imbricated nerveless leaves. Leaves 

 forming a comal tuft, lanceolate-subulate, somewhat crisped when 

 dry and variously twisted at apex, subfalcate secund, convolute- 

 concave, sparingly serrulate at point, nerve carinate, ^ width of base, 

 vanishing in the apex, cells at base lax, elongate, the angular numerous 

 thin quadrate yellow, the upper very small quadrate, smooth at back. 

 Perich. bracts convolute, sheathing, gradually subulate ; caps, on a pale 

 slender seta, elongate, cylindric, olivaceous, striate, and when dry 

 remotely sulcate, annulus of one series of cells ; lid with a long beak, 

 oblique, fuscous. 



Male pi. more slender, bracts from a broad concave base, suddenly 

 acuminate. 



HAB. Rotten trunks of trees, especially of chestnuts ; very rare. Fr. 8. 



Abbey wood and Bostol wood, Kent (Holmes 1874) ! ! sterile. Recorded also by Taylor 

 in Fl. hibern. from Glen-flesk, Kerry. 



Turner's D. flagellave with fr. from Lough Bray is D. Scottii, and 

 the barren one from Cromford moor according to Wilson is Campylopus 

 flexuosus. D.flagellare much resembles the last species but is more robust, the 

 leaves less curled, with the apex only feebly toothed and smooth at back. 

 The flagella are usually absent from the lax barren tufts. 



16. DICRANUM VIRIDE (Sull. Lesq.) Lindb. 



Dioicous ; densely pulvinate, tomentose at base ; leaves erecto- 

 patent, very fragile, from an oblong base lanceolate-subulate, quite 

 entire, nerve excurrent ; caps, erect, oblong, slightly curved ; lid conico- 

 rostrate. (T. XXIII, D.) 



SYN. Dicr. thratistophyllum SPRUCE MSS. 1850. 



Campylopus viridis SULL. LESQ. Muse. bor. am. n. 72 (1856) et 2 ed. n. 91 (1865). 



SULLIV. Moss. un. st. 103 (1856) ; Ic. muse. 30, t. 18 B (1864). 

 Dicr. thraustnm SCHIMP. MSS. 1862. 

 Dicr. viride LINDB. in Hedwigia ii, 70 in obs. (1863), in RAB. Bryoth. n. 1061 (1869). 



SCHIMP. Bry. eur. suppl. fasc. 3-4, p. i, t. i (1866), Synops. 2 ed. 83 (1876). DE NOT. 



Epil. br. it. 630 (1869). MILDE Bry. siles. 65 (1869). HOBK. Syn. br. m. 46 (1873). 



JURATZ. Laubm. Oesterr-ung. 40 (1882). HUSN. mouss. nord-ouest 2 ed. 47 (1882). 

 Dicr.fulvum* D. viride LINDB. in HARTM. Sk. Fl. 9 ed. ii, 68 (1864). 



Dioicous ; pulvinato-csespitose, rigid, dull deep-green above, ferru- 

 ginous and tomentose below, fastigiate-branched. Leaves crowded, 

 erect, longer and subfalcate in the coma, patent, curved upward from 

 the middle, very fragile in the upper part and rarely perfect, from an 

 oblong lineal-lanceolate base, subulate, entire ; nerve flat, -> width of 

 base, excurrent in a smooth channelled subula ; cells shortly rectan- 

 gular, lax and chlorophyllose at base, except the middle ones which are 



