jomts, which is the strongest of those mentioned, is not to be 
altogether counted on; for though I have not observed the jomts 
in any specimen of C. rupestris to be of the extreme length of 
those of C. nuda, yet I have seen a tendency in some specimens 
of that species to produce long jomts; and this, joined to the 
non-occurrence in recent times of C. nuda, has latterly disposed 
me to consider it a variety of C. rupestris. As, however, it has 
already obtained publicity both in this country and on the Con- 
tinent, I think it deserving of being figured in this work, and 
shall be happy to find that future researches prove its title to re- 
ceive aname. Last summer (1850) I sought for it diligently on 
the basaltic rocks in the neighbourhood of the Giant’s Cause- 
way, but in vain; and it was out of my power to extend the ex- 
ploration as far as Port Stewart. 
Fig.1. CiapopHora NupA:—the natural size. 2. Portion of a branch :-- 
magnified. 3. Ramuli:—more highly magnified. 
