the Internal ftrufture, as reprefented at C. may be obferved ; the capfule, which 

 is rather thick, contains a number of dark red feeds, immerfed in a clear gelatinous 

 pulp, part of which iflues with them, when ripe, through an aperture, formed 

 by the burfting of the apex of the capfule. Not having been able to obferve the 

 dioecious fructification mentioned by Lightfoot, I am inclined to think that the 

 plants which he fuppofed to be male and female, differed only in age. In June 

 the capfulcs have generally fhed their feeds, and during that month this plant is 

 found lying in great abundance on the more; this circumftance may probably be 

 accounted for by reusing that the roots inftead of inhering into the fubftances 

 to which they adhere for the purpofe of abforbing nourifhment, merely grafp the 

 rocks for the fake of fupport, and it feems probable that when they have frudified, 

 and their vigor begins to decline, they are no longer able to maintain their grafp, 

 and therefore inftead of decaying on their native fpot, as is the cafe with land 

 plants, eafily yield to the preffure of the tide, and are warned away to rot, or offer 

 their fervices to man on the fhore. Several obfervations I made at Dover tend 

 to ftrengthen this pofition, which ferves alfo to account for the fudden difappear- 

 ance of the marine alg3e mentioned in the Introduaion to the Synopfis of the 

 Britifh Fuci, and confirmed by the experience of my friend the Rev. J. Lyons 

 and numerous other marine botanifts. 



For reafons given in my friend D. Turner's Synopfis above mentioned, p. 295. 

 Ray's Synopfis cannot be here referred to. In drying, this plant undergoes but 

 little change ; it adheres to paper, but not at all to glafs. 



A. C. coccinea, natural fize. 



B. ditto magnified 3. 



C. ditto ditto 2. 



