HEPATICA ANTARCTIC. 95 
Var. y nana is far minuter, more branched, the mode of 
branching is intermediate between that of var. natans and of 
J. multifida, L. ; the cellules are shorter and wider. 
These two varieties may turn out to be distinct species 
when their fructification is known. 
(Fegatella, Cesalpinus.) 
36. J. limbata, n. sp.; fronde implexa prostrata lineari-ob- 
longa apice biloba margine elevata corrugata nigricante, 
receptaculis foemineis subrotundis subbilocularibus disco 
rugoso loculis incrassatis verticaliter fissis, pedunculis epi- 
phyllis. 
Has. Ascension Island. 
Fronds collected into flat patches several inches wide, 
canaliculate, sometimes bilobate at their tops, often simple 
with a very shallow sinus ; pale green when moistened; their 
surface beset with numerous pores in the form of whitish 
elevated points of the cuticle. Rootlets pale brown, along . 
the axis, exterior to which on each side isa row of imbri- 
cated, dark blood-red scales, which are semi-ovate with a 
linear appendage or apiculus; exterior again to these, the 
cuticle of the under-side of the frond is much wrinkled and 
of the same colour as the scales. The fruit, both male and 
female, is truly epiphyllous, sometimes two or three recep- 
tacles occur along the axis on the same plant. The indu- 
sium, which in the young state envelopes the receptacle and 
in maturity lies expanded beneath it, consists of several lan- 
ceolate, scariose, dark red scales with pale or colourless 
Summits. The female receptacle is sometimes sessile, some- 
times pedunculated, it is roundish and has a wrinkled carnose 
disk above ; the loculi are usually two, with thick valves that 
appear marginate at the vertical opening. The male recep- 
tacle has an indusium similar to that of the female. The 
disk of the male receptacle is nearly round, carnose, imbedded. 
in the frond; it has above from eight to ten hemispherical - 
elevations, beneath each of which is a conical cavity reaching - 
down through the entire depth of the receptacle, in which 
