[ 426 ] 
Before I conclude, I mud: obeferve; 
That as Do&or Pallas has likewile introduced 
among his arguments, that the fruit of the Fucus’s 
are fubanalogous to thofe of the Corallines, I could 
introduce an infinite variety to Ihew the great dif- 
ference there is between them ; but this part of 
natural hi (lory, too long neglected, requires a vo- 
lume by itfelf, to fhe^w the amazing variety of vege- 
tables, that lie hid from us in the great deep ; I may 
make fome obfervaticns on them the fubjedt of a 
future letter, efpecially as many, of them are of the 
clafs of Dioecia, as well as thofe which I have al- 
ready (hewn in the Confervas ; which I believe will 
be new to the botanids. 
I am, 
Dear Sir, 
Your mod obedient fervant, 
John Ellis. 
The Defcription of Plate XVIII. 
Fig. a 
A. 
b. 
B. 
B i. 
The female Conferva polymcrpha. 
The fame magnified, to £hew the feeds 
in the Capfules. 
The male Conferva polymorpha. 
The fame magnified, with its male flowers. 
One of the catkins, or male flowers, highly 
magnified. 
The female Conferva plumofa. 
The 
