424 HEPATIC^. 



Obs. — From the other fetid Fossombronia, distinguished by its 

 still stronger disagreeable smell. 



The spores are similar to those of F. angulosa, only with more 

 numerous and much smaller pits, the ridges are more depressed 

 and the marginal projections number from 20 to 30. 



Description of Plate CLXXXVI. — Fig. 1. Plants natural 

 size. 2, 3. Plants x ? (Allerthorpe Common, Marshall). 4-7. 

 Leaves x 16 (ditto). 8-10. Ditto x ? (ditto). 11. Portion of 

 leaf X 290 (Finland, Lindberg). 12-15. Cross-sections of stem 

 x 24 (ditto). 16. Portion of stem with perianth x ? (Aller- 

 thorpe Common, Marshall). 17. Young capsule x 24 (Finland, 

 Lindberg). 18. Spore x 290 (Allerthorpe Common, Marshall). 

 19. Ditto X 400 (Lindberg). 20. Ditto x 400 (Corbiere). 



21. Perigonial bract x 24 (Allerthorpe Common, Marshall). 



22. Antheridium x 64 (ditto). 



(G.) Spores with lamellje compressed into papillae. 

 e. Papillae truncate. 



5. Fossombronia csespitiformis, Be N. 



Fossombronia angulosa, var. B. ccespitiformis, Radd. in Att. soc. sc. Modena. 



XVIII., p. 41, excl. synon. (1818)? 

 Fossombronia ccespitiformis, De N. in G. R. Hep. evir. dec. 13 et 14, n. 123. 



Heteroicous, fetid, csespitose, small, of a green colour. Stems 

 procumbent or sub-erect, simple or slightly branched, on a cross- 

 section subterete ; radiculose, rootlets violet-purple. Leaves 

 crowded, obcuneate, sub-quadrate or oblong-quadrate, lobate, lobes 

 obtuse; texture delicate, cells medium size, sub-quadrate, walls 

 thin, no trigones or thickened angles. Bracts sub-quadrate or 

 roundish-obovate, margin denticulate. Perianth obpyramidal, 

 plicate, mouth wide, irregularly lobate-dentate. Calyptra delicate. 

 Capsule globose, dark brown. Spores dark brown, tetrahedral- 

 globose, densely echinate, spines obtuse, numerous, about 25 

 projecting around the margin ; elaters long, pale brown, bi-rarely 

 tri- spiral. 



