258 NEW HEPATICjE. 



divided into flabellate lobes. It is certainly an anomalous 

 genus, like many others of its compatriots. 



The colour varies from a pale yellowish-green, or grey, to 

 brown. The podetia in n. 70 do not exceed 2 lines in height, 

 and the warts of the lower part of the thallus are smaller, 

 while in n. 69 they are sometimes half an inch high. 



Tab. X.— Fig. 1. Young, and/. 2. full grown plants, nat. 

 size ; f. 3. young thallus and podetia ; /. 4. older ditto ; /. 5. 

 vertical section of ditto ; /. 6. podetium ; /. 7« portion of 

 apothecium ; /. 8. ditto, more advanced ; f. 9. asci ; — more or 

 less magnified. 



New Hepaticle ; by Thomas Taylor, M.D. 



Having been permitted by Sir William J. Hooker the 

 agreeable privilege of examining the Hepaticce of his most 

 extensive and valuable collection, and allowed the liberty 

 of publishing the undescribed species, I propose, in the 

 following papers, to give specific characters and short diag- 

 nostic descriptions of those that appear to me new. A 

 few are added from my private Herbarium and from those or 

 other kind friends. 



1. Gymnomitrion, Nees. 



1. G. atrocapillum, Hook. fil. etTayl.j caule tenuissimo, im- 

 plexo, procumbente, subramoso, flexuoso ; foliis distantibus, 

 erectis, adpressis, concavis, ovato-quadratis, eroso-enaargi- 

 natis, integerrimis ; perichsetialibus majoribus imbricatis 

 in capitulum congestis. 

 Hab. On clay, at an elevation of 600 feet, Foul Haven, 

 Kerguelen's Land, May, 1840, Dr. Joseph D. Hooker. 

 Patches loose, 1-2 inches wide. Stems black, slender as 

 horse-hair, the sterile nodulose with distant concave ad- 

 pressed leaves, whose emarginate summits are browner than 

 the remaining parts; pericheetial stems pale olive-brown, 



