380 HEPATIC.]^. 



W. H. P. 12. Bow Fell, G. Stabler. Borrowdale, IF. H. P. 

 13. Miljea ; North of Black Craig; Ballingear Woods, New 

 Galloway, /. McAjidreiv. 15. Jjoch-na-Gar, ./. 8i7n ; Ben Challum, 

 Breadalbane, A. 0. Black; Ben Voirlich, Craig-na-Gour, and 

 Ben Lawers, J. McKinlay ; Locli Kandor, Ben MacDhui, G. E. 

 Hunt. 16. Moidart, West Inverness, S. M. Macvicar. 



I. Black Mountains, Dr. Moore. 



Found on the Continent. 



Obs. — Distinguished from M. emarginata (Ehrh.) by its usually 

 darker colour, by its never cordate leaves, with segments more 

 acute. Cesia alpina (Gotts.) has polished leaves of a different 

 texture. 



Description of Plate CLXVI. — Fig. 1. Plants natural size. 

 2. Fertile stem x 31 (Llanberis, W. H. P.). 3. Male stem x 

 31 (ditto). 4-8. Leaves x 24 (Tyn-y-Groes, W. H. P.). 9. 

 Leaf X 31 (Llanberis, W. H. P.). 10. Portion of leaf x 290 

 (ditto). 11. Sub-bract x 31 (ditto). 12, 13. Bracts with 

 portions of perianth x 31 (ditto). 14-17. Perigonial bracts x 31 

 (ditto). 18. Antheridium x 85 (ditto). 19. Spores x 290 (ditto). 



4. Marsupella olivacea, Spruce. 

 Marsupella olivacea, Spruce in " Rev. Bryol." p. 97 (1881), 



Synoicous and paroicous, csespitose, small, olive green colour. 

 Stems rigid, rhizomatous, stolons long, creeping, leafless or 

 clothed with minute leaves, radiculose, erect, subsimple, or 

 innovantly elongate — rarely repeatedly ramose, apices of the 

 fertile stems clavate, sterile stems filiform- small-leaved. Leaves 

 small, subimbricate, erect, appressed — upper sometimes subpatent 

 at the apex — at the base decurrent-vaginate, oblong, canaliculate- 

 concave, hardly subcarinate, bilobed from \ to J, sinus obtuse, 

 lobes obtuse, rarely abruptly subacute ; texture thick, opaque ; 

 cells minute, walls thickened, angles thickened, no trigones, cells 

 of the upper portion of the leaf and middle subequal, near the 

 base larger, a little elongate, marginal cells quadrate. Bracts 

 terminal, fusiform, 3-4 pairs, broadly ovate, canaliculate-concave, 

 at the apex very shortly (^V to \) bilobed, lobes incurved, 



