TORTULACE.E.] 248 [Mollia. 



half-length of caps, acute, annulus of two rows of narrow cells ; teeth 

 pale red, narrowly lineal-lanceolate, cleft, or perforated, the legs closely 

 cohering. Male plant more slender, repeatedly branched, bracts from 

 an ovate concave base, narrowly lineal-lanceolate. 



HAB. Damp shady rocks and by waterfalls, sometimes on trunks of trees ; 

 not uncommon, but rare in fruit. Fr. 10. 



Dolgelly, Dennant and Conway c. fr. (Wilson 1830) ! ! Lythebeck, Eskdale (Spruce 

 1842) ! Crambeck and Howley Wood, Castle Howard (Spruce 1844) ! On trees, 

 Stapleton, Bristol (Thwaites 1843) ! Povverscourt and Killarney (Taylor). Brandon 

 Mountain (Moore). Glen Roy and foot of Ben Voirlich c. fr. Tore cascade, Eagle's 

 nest and Cromaglown (Hunt 1867) ! ! Dunoon and Trossachs (Hunt 1866) ! Cwm 

 Bychan and Tyn-y-Groes (Holt 1882) !! Pigeon rock Mtn., Mourne Mtns., Co. Down 

 (Rev. H. Lett and C. Waddell 1885) ! ! Barmouth (Whitehead) ! ! 



Var. ft. Daldinii (De Not.) 



In wider tufts of a yellow-green colour ; leaves shorter, broader, gra- 

 dually narrowed towards apex, or suddenly apiculate, very acute, two 

 marginal series of cells pachydermous, yellow ; capsule small oblong. 



SYN. Didymodon cylindricus Var. ft. Daldinianus DE NOT. Epil. 1. c. SCHIMP. Synops. 

 2 ed. 165. 



HAB. In more Alpine localities. 



Ben Voirlich (McKinlay 1862). Ben More and Ben Lawers (Hunt 1865) ! ! Trossachs 

 (Hunt 1866) ! Borrowdale (Wilson 1864). Ben Arthur (Stir ton 1864). Twll Du, 

 Caernarvon (Holmes 1876) ! ! Moy Laggan, Perth (Mrs. Farquharson 1879) ! ! 

 Tyn-y-Groes, Wales (Holt 1885) ! ! 



Var. y. Holtii BraitJiw. 



Plants robust, densely matted and tomentose, with stout straight stems 

 dark green above, black below ; leaves more dense, the upper often slightly 

 secund, erecto-patent, firm, apex rather obtuse, the nerve lost at point, cells 

 smaller, dense, nearly smooth. 



HAB. Dripping rocks and in the spray of waterfalls. 



Bamford wood, Lancashire (Holt 1883) ! ! Injebreck and Sulby glen, I. of Man (Holt 

 1883) ! ! Clogwyn-du-Arrddu and Tyn-y-groes, Wales (Holt 1883) ! ! Cromaglown 

 and O'Sullivan's cascade (Stewart and Holt 1885) ! ! 



Much resembling M. tortuosa, but more slender, and readily distinguished 

 from it by the basal areolation, which in the latter is sharply defined from the 

 chlorophyllose in a direction running obliquely upward and outward. It 

 varies much in size, and when exposed to dripping water becomes dark 

 green and often much elongated. 



Schimper's Var. robustus, from Troutbeck, is only M. tortuosa. 



19. MOLLIA HIBERNICA (Mitt.) Lindb. 



Dioicous ; tall and branching. Leaves from an ovate clasping 

 base which is dilated upward, lanceolate-subulate, patent, entire, 

 nerved to apex, basal cells elongate rectangular, abruptly passing to 

 minute rounded chlorophyllose ones. (T. XXXVI, C.) 



