lour, it varies extremely ; fomc fpccimcns being feen 
almofl all purple, others all yellow, or variegated with 
purple branches and veins. 
The vegetable part or item is of a very dark horn- 
colour, or brown ; the animal part confifts of the cal¬ 
careous yellow' or purple incruflation ; thickly befet 
with final 1 protuberances, in each of which is a cavity, 
which, (in the recent coral) is the habitation of a fmall 
Polype. 
Fig. i. A fmall detached part, flightly magnified, lhcwing the 
cells in which the Polypes refide. 
Fig. 2. The Polype itfelf (lightly magnified. 
