the substance is much more soft and tender than in that species, 
and the colour much brighter. The upper joints, moreover, in 
the present species are suffused with a beautiful carmine, and 
the axils are far less patent. The tufts are perfectly fastigiate, 
forming regular circular fans when displayed on paper. 
The merit of having first correctly distinguished the present 
plant is due to Mrs. Griffiths, who has for many years studied 
the species of the puzzling genus Ceramium with great care, and 
who is, therefore, more competent than most botanists to judge 
of the proper limits of the species. Whether this plant be the 
Conferva fastigiata of Roth (Cat. Bot., vol. u. p. 224), Iam 
unable to decide, having never seen an authentic specimen of 
that author’s naming, but I suspect that half-a-dozen Ceramia 
which are now regarded as species, have been at different times 
referred to Roth’s synonym. Our present plant is by no means 
confined to one locality. ‘The specimens from the several stations 
above noted, are all of the same character, and I have also had 
the pleasure of receiving from my liberal correspondents, Professor 
Bailey of New York, and Mr. Olney of Rhode Island, U.S., 
North American specimens in all respects similar to our British 
ones. 
Fig. 1. Tuft of CeRaMIUM FASTIGIATUM :—of the natural size. 2. Portion of 
a filament :—magnified. 3. Apex of the same, with favella. 4. Articula- 
tion from the lower part of the same :—4doth highly magnified. 
