286 HEPATIC4 ANTARCTIC. 
39. J. tenax, Greville in Ann. Lyc. of New York. 
Has. Lord Auckland’s group. 
40. J. tetradactyla, n. sp.; caule implexo debili prostrato 
subpinnato, foliis distichis patentibus laxiusculis ex sub- 
quadrata basi longius quadrispinosis, spinis articulatis, 
stipulis minutis quadripartitis, calyce elongato cylindraceo 
ore contracto ciliato. 
Has. Lord Auckland's group; on Jung. coalita, Hooker. 
Patches from one to two inches wide, pale yellowish- 
green. Stems often one inch long, much branched with 
alternate shoots, whose leaves are crowded towards the 
summit. "The stem is contained in a transparent and colour- 
less sheath, much wider than the opaque central part ; hence, 
under a lens, the stem appears to be winged with a pellucid 
membrane. Leaves on the main stem more distant than af 
the tops of the shoots, from a broad subquadrate base, divid- 
ing above into four jointed setaceous segments. The sti- 
pules are scarcely wider than the stems, and their divisions 
are rather subulate than setaceous. : 
From Jung. centipes, Tayl., a species from Van Diemen $ 
Land, the present may be separated by its darker colour, 155 
more branched and decidedly pinnate stems, by the lesser 
ratio of the undivided to the divided part of the leaves, by 
the more distant and less patent leaves, and by the more 
setaceous figure of their segments. : 
The calyces and perigonia occur on New Zealand spec 
mens; the former are fully as long as the shoots, he 
remarkably large in proportion to the size of the plant, they 
are ovato-cylindrical, very slightly bent to one side ; ioc : 
pericheetial leaves are erect, and have a longer common = ae 
to the laciniz than the cauline. The perigonia are cylindrica P 
spikes, their leaves have large and tumid bases, and usually 2 
are only bifid above, each containing at its axilla a singe - 
round, minute, brownish, pedicellated anther. p. 
41. J. patentissima, n. sp.; caule subcespitoso repente Led 
nato, ramis brevibus, foliis imbricatis patentibus late ae 
losis obovatis quadrifidis segmentis rectiusculis integerrm T. 
stipulis minutis subquadratis quadridentatis. 
