cially of Australia, yield beautiful species, having the pinnated 
habit of Coraliina with the antennated fruit (if so I may call it) 
of Jania. These form the section of Jania, called Haliptilon 
by Decaisne, and J have already figured, on Corallina squamata, 
fruit which, did it occur on an Australian specimen, would entitle 
the individual furnished with it to a place in the subgenus Hali- 
ptilon. 
Jania corniculata differs from the more common J. rubens chiefly, 
if not altogether, im the form of the lower articulations ; much as 
Corallina squamata ditters from C. officinalis. The species has 
been generally kept up by all authors, since the time of Ellis, 
who first distinguished it. On the British shores it is most com- 
mon on the southern coast, while J. rvéens is found all round 
the island. 
Fig. 1. Janta cornicunata :—of the natural size. 2. Portion of the branching 
stem. 3. Portion of another stem, becoming pinnated. 4. Ceramidium 
and ramuli. 5. Articulation of the stem after maceration in acid :—all 
more or less magnified. 
