the BrUiJh Fuci^ with particular Defer ipt Ions of each Species. 93 



nous y^lg^ as have innate frudlification difperfed throughout the 

 fans, mufl; neccfTarily be arranged in the genus Ulva ; which will 

 confcquently include, if not all the aquatic, in great probability all 

 the marine Tremella. 



We mufl: again call upon the candour of the Society not to im- " 

 pute thefe corredlions of our great maftcr Linnasus to any finifter 

 views. — We fee errors, we ftate them. 



It is with the utmofl: diffidence, that, after having faid fo much^ 

 we prefume to fuggeft any other defcriptions in the room of thofe 

 which we have rejefted ; but as it is ablolutely neceffary that fome 

 fliould be propofed, we would beg leave, from the very iinperfe(£l 

 light by which we at prefent walk, to define the chara6ters as fol- 

 lows : 



Fucus — Semina, tuberculis conferth apice dehifcentibus, innata. 

 Conferva — Semina, tuberculis rotundls foUtariis claujis fronde ex- 



tantlbus, adndtls, inclufa, 

 Ulva — Semina fimpUclffimafrondl innata, undlque fparfa. 



In fl:ating thefe ideas of character we are thoroughly confcious of 

 our imbecility and ignorance. We profefs only to efliablilTi certain 

 data from the appearance of what may be juftly deemed frudlifica- 

 tion, and confl:itute our differences accordingly. 



Before we difmifs this fubjed it may be proper to obferve, that 

 in many Fuel two forts of frudlification are to be feen — one warty 

 tubercles, and the other numerous fingle grains. The obfervation 

 of thefe has again led ftudents to imagine that they are the differ- 

 ences of fex. Undoubtedly both thefe appearances are of the 

 female fiower, /'. e. feminal — We have obferved them occafionally 

 in F. alatusy vermlcularis, and hypoglojfoni fcattered along the rib or 

 nerve, or on the membrane on each fide of it. Some few of thefe 



grains 



