296 HEPATIGJS. 



and the perianth proportionally wider; from small forms of Junger- 

 mania cordifoUa — see notes under the latter species. 



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

 2. Stem X 24 (Miller's Dale, W. H. P.). 3. Leaves x 24 

 (276, G. & Ft.). 4. Leaf (ditto). 5, 6. Leaves x 24 (Miller's 

 Dale, Gr. A. Holt). 7. Portion of leaf x 290 (Miller's Dale, 

 W. H. P.). 8. Bract x 24 (276, G. & P.). 9. Perianth x 24 

 (Miller's Dale, W. H. P.). 10. Perigonial stem x 24 (ditto). 

 IL Perigonial bract x 24 (Wharfdale, Herb. Slater). 12. Ditto 

 (Canada, Macoun). 13. Antheridia x 85 (ditto). 



4. Jungermania sphaerocarpa, Hooker. 



Jungermania s-phcerocarpa, Hook. Brit. Jung. t. 74 (181G). 



Jungermania Goulardii, Husn. Hep. Gall. n. 68 et Hepaticol. Gall. p. 20 (1881). 



Aplozia sjjhKTOcarjxi, Dum. Hep. Eur. p. 61 (1874). 



Monoicous, rarely paroicous, csespitose, pale to yellowish-green 

 to brown in colour. Stems somewliat fleshy, simple or innovantly 

 branched, innovations arising from base of perianth, erect or 

 ascending ; radiculose, rootlets ascending to apex of stem, long, 

 whitish. Leaves succubous, regular, alternate, approximate, 

 obliquely inserted, slightly decurrent, embracing the stem, secund 

 or spreading, subhorizontal, orbicular or roundish, somewhat 

 slightly retuse, concave, plane or slightly undulate, lower leaves 

 distant and smaller ; texture somewhat fleshy, epidermis smooth ; 

 cells medium size, 5-, 6-sided, walls moderately thin, firm, trigones 

 distinct, marginal cells quadrate, distinct. Stipules none. Bracts 

 similar to the leaves. Bracteole none. Perianth often jDrojecting 

 far beyond the bracts, usuall}^ §, obovate or obovate-oblong, 

 sometimes with a long neck, composed of one layer of cells in the 

 upper portion, in the lower 2 cells thick, 4-angled, sometimes 

 with 5 or 6 angles. Pistillidia 7-10. Capsule spherical, some- 

 times slightly hypophysate. Spores brown. Elaters bispiral. 

 Perigonial bracts terminal on the innovant branches, 3 to 4 pairs, 

 small, oval ; antheridia oval, with long bearers, 1 or 2 at the base 

 of each bract. 



