252 HEPATIC^. 



resembling small forms of Geoccdyx graveolem, but if their origin, 

 or connection with naature plants be traced, the difficulty is 

 solved. 



This and the previous species have the strong unpleasant 

 smell, more evident when drying, of L. bidenfata. 



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



2. Portion of stem, antical view x 16 (Dove Dale, AV. H. P.). 



3. Portion of young branch x 64 (Abergele, W. H. P.). 4. Leaf 

 X 24 (Castle Mill, Cheshire, G. A. Holt). 5. Ditto x 24 



(Bowdon, W. Stanley). 6. Ditto x 24 (Dove Dale, W. H. P.). 

 7. Portion of leaf x 290 (ditto). 8. Stipule x 24 (Bowdon, 

 W. Stanley). 9. Ditto from young branch x 85 (Castle Mill, 

 G. A. Holt). 10. Sub-bract x 24 (Dove Dale, W. H. P.). 

 11. Sub-bracteole x 24 (ditto). 12, 13. Bracts x 24 (ditto). 

 14. Bracteole x 24 (ditto). 15. Perianth x 16 (ditto). 16. 

 Ditto, explanate to show mouth x 16 (ditto). 17. Antheridium 

 X 64 (Bowdon, W. Stanley). 



4. Lophocolea spicata, Ta?/L 



Lophocolea spicata, Taylor in G.L.N. Syn. Hep. 1G7 (1844). 



Monoicous, closely appressed to rocks, in entangled masses, 

 small, pale green in colour. Stems creeping, irregularly branched, 

 outer layer of cells large, hyaline ; radiculose, rootlets few, small, 

 whitish. Leaves gradually increasing and decreasing in size, 

 horizontal (90°) to patent-divergent (70°), slightly imbricating, 

 antical margin decurrent, ovate, diversiform, bi-, tri or rarely multi- 

 dentate, segments acute, connivent or divergent ; texture delicate ; 

 cells small, subquadrate or oblong-quadrate, 4-, 5- or 6-sided ; 

 walls moderately thick, no trigones. Stipules free, bipartite, 

 segments acuminate, unidentate near the base of the exterior 

 margins. 



Involucres on short branches ; bracts oblong, upper portion 

 irregularly dentate ; bracteole bipartite, segments acutate, irregu- 

 larly dentate. Perianth projecting beyond the bracts, triquetrous, 

 angles not winged, mouth wide, laciniate-dentate ; pistillidia 



