Hygrobiella 75 



totuni teneutia ; bractece foliis conformes, vel majores et latiores, mon- 

 B.ndr8&.— Folia -35 x -15 ; c ^l^°; /^« -35 x -12; br 1-65 x '55, (cellulcB 

 bractearum ^^A^ — 1/12 mm longd); per 2-0 x 0-5 m™. 



Jung, laxifolia Hook., G, L. et N. Syn. Hep. 147, necnon auctorum fere 

 omnium, 



Gymnocolea laxifolia Dum. Rev. Jung. 



Cephalozia laxifolia Lindberg Muse. Scaucl. 1879. 



Stirps singularis, a Cephaloziis certe diversa liabitu peculiari ; ramis 

 foliosis lateralibus, defectu radicellarum fere absolute ; floribus foemineis 

 constanter terminalibus. Cellulis elongatis cum Alobiellis congruit ; 

 foliolis majusculis semper preesentibus ad Eucephalozias subluridas ac- 

 cedit ; foliis complicatis ad Cephalozielkmi ; ab omnibus tamen caracteri- 

 bus expositis recedit. 



Hab. in moist places, especially on rocks by streams, not ascending 

 high in the hills ; apparently confined to the north of Europe. British 

 Isles, not rare, but local; Teesdale and Eskclale (k, s. and m. b. slater); 

 Westmorland (g. STABLER*) : Wales (wilson and others^; Scotland: Clock- 

 maben, near Banchory, gathered by t. sim with fruit in perfect state, 

 which is exceedingly rare. Ireland, Co. Kerry (t. taylor, d. moore, r.s.). 

 North Germany. Sweden. Greenland. 



In specimens from Brandon Mt. (Ireland) and from Teesdale, Eskdale, &c., the 

 branches mostly originate from the leafless lower portion of the stem, and (as there 

 are no radicles to indicate the underside of the stem) it is difficult to ascertain on 

 what face of the stem they are fixed ; but where they do spring from a leafy part of 

 it they are lateral, and axillary to the side-leaves. Scotch specimens, from Pearson, 

 are more leafy, and the branches are very distinctly lateral. Subfloral innovations 

 are either lateral or postical, and are often repeatedly innovant and floriferous; as in 

 the following species. 



2. Hygrobiella myriocarpa (Carr.) 



Diploj)liyllum myriocarpitm Carr. in C. et Pearson, Hepat. Brit, exsicc. 

 no. 96 (1879). 



Dioica pusilla rufula dense caespitosa, Caules \ — |-pollicares in- 

 texti rigidiusculi obtuse quadranguli, basi nuda rhizomatosi divergentl- 



*Mr. Stabler has lately (May ii, 1882) succeeded in finding H. laxifolia in fruit 

 in Mardale. 



