31 



SECTION V. 

 CONFERVA OF HUDSON. 



Having, through the kindnefs of Dr. Williams, had repeated accefs to the 

 Dillenian Herbarium, and received fome valuable information refpeftinsj the 

 fynonymy of the Flora Anglica from Sir Thomas Frankland and the Rev. Hugh 

 Davies, who were both intimately acquainted with its diftinguifhed author, I feel 

 happy in being able to remove the uncertainty that has hitherto attended the 

 elucidation of many of Hudfon's Conferva;. I fhall therefore offer a few obfer- 

 vations on each of the doubtful fpecies, and refer the remainder to the cor- 

 refponding figures of the prefent work. 



r. C. rivularis. T. 39. Var. £. is C. nitida T. 4. 



2. C. f outbid lis. T. 64. 



3. C. violacea. A plant which exactly agrees with Dillenius's and Light- 

 foot's defcriptions, and alfo with fome of the fpecimens in the Dillenian Her- 

 barium, grows abundantly on the Hones in fome rap d rivulets in the neighbour- 

 hood of Swanfea, and feems to be only a flight variety of C. decorticans. Mr. 

 Dickfon gave me a fpecimen of C. dijlorta, gathered in the Highlands, under- 

 the name of C. vi lacea; but, although the former, efpecially when dried, is of 

 a ftriking violet color, yet it differs entirely from the latter in its mode of 

 growth, as defcribed by Dillenius. 



4. C. furcata. The late Mr Pitchford gave me an authentic fpecimen, 

 marked by Hudfon " C. furcata," which is nothing but a narrow variety of 

 C. dichotoma I have little doubt that Dillen u.->'s No. 10, which Hudfon calls 



fu cat a &, is a variety of C. amphibia : — C. amphibia and C. dichotoma are, how- 

 ever, very clofely allied. 



5. C. dichotoma. T. 15. 



6. C. bullofa. I think there can be no doubt that many of the fpecies whofe 



