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ACTlNIAD.i:. 
titute of spots. The marginal spherules are sometimes 
large, sometimes minute ; now azure, then pearly white. 
A more marked character is the absence of the coloured 
line bounding the base; but I am not sure that this is 
constant. 
I am glad to fortify my own opinion by that of so 
acute an observer as Mr. Holdswortli. He writes me as 
follows : — “ I have now seen so many connecting links 
between the typical mesemhryantliemum and the fragacea, 
so called, that I am convinced they are one and the same 
species ; although I have not arrived at this conclusion 
without devoting considerable time and attention to the 
subject.” 
Of the supposed species, cMococca, cerasum, and Fors- 
TccilU, for these are assuredly all the same thing, I would 
speak with some deference, owing to my having never 
seen the form in its perfect type, though I have no doubt 
of its identity with the present subject. Sir John Dalyell, 
though he gave it a specific name, summed up his obser- 
vations with the following words : — “ On the whole, I am 
disposed to view it as a variety of mesemhi'yanthemumy 
Nor do I see how he could do otherwise ; for he tells us 
that, of his cerasum, which was very prolific, all the young 
were red hut one, which, red at first, became at five months 
old green. This bred, and all its gyrogeny were green ; 
though it had upwards of a hundred descendants before it 
was two years old, and continued to breed for five years 
more. 
It is but fair, however, to add, that Mr. W. P. Cocks, 
who constituted cMococca a species, and to whom I am 
indebted for the beautiful drawing which I have copied 
in my Plate VI. fig. Z, retains his opinion. From one of 
his letters to me, I cite the following interesting notes : — 
“The A. cMococca is certainly a good species. I have 
