36 HEPATIC^. 



Pistillidia delicate, 1 or 2, rarely 3 or 4. Perianth trigonous, 

 obpyramidal, slightly rostellate, smooth. Calyptra lower half 

 broadly tubular, 2 or 3 cells thick, upper half abruptly sub- 

 globose, delicate. Pedicel about twice as long as the perianth, 

 thick. Capsule globose, dividing into 4 valves which are com- 

 posed of two layers. Elaters long. Spores minutely tuberculate. 

 Androecia spicate on branches ; bracts diandrous. 



1. Jubula Hutchinsise (Hook.), Bum. 



Jungermania Uutchinsice, Hooker, Brit. Jung. t. 1 (1816). 

 Jubula Uutchinsice, Dum. Comm. Bot. p. 212 (1822). 

 Frullania ffutchinsice, Nees Nat. Eur. Leb. Ill, p. 240 (1838). 



Monoicous, in spreading or dense imbricated patches, rarely 

 substratified, medium to large in size, pale to blackish-green in 

 colour. Stems prostrate, laxly and subflabellately branched, 

 sometimes pinnate, sometimes dichotomous, subgeniculate, branches 

 proceeding from below the ? flowers furcately, rarely with uni- 

 lateral innovations, 8x6 cells in diameter, frontally compressed, 

 cortical cells about 30, pale brown, much smaller than the inner 

 which are very large and pellucid ; radiculose, rootlets few, 

 whitish. Leaves incubous, horizontal, subimbricate, antical 

 distichous, bifarious, unequally bilobed, antical lobe plane, broadly 

 obliquely ovate, apiculate-acute or cuspidate, except at the base 

 acutely spinose-dentate, principally at the antical margin, spines 

 2-12, triangular-acuminate, sometimes longer and ciliaform, lower 

 leaves less, upper leaves more dentate, branch leaves with few, 

 rarely without, antical base dilated but not cordate, covering the 

 stem, sometimes unidentate, postical lobe 4 to 5 cells distant from 

 the stem, subparallel to it, saccate, ovate, 5 or 6 times shorter 

 than the antical lobe or evolute, subulate or lanceolate acuminate ; 

 cells smallish, 5- and 6-angled, near base subelongate, walls thin, 

 no trigones or thickened angles, subpellucid or with numerous 

 chlorophyllose granules which crowd round the cell walls, making 

 them appear thickened ; at the insertion of every branch is 

 present an antical elobulate leaf seated partly on the stem and 

 partly on the branch, broadly subcordate-ovate, acuminate, quite 



