36 



SYNOPSIS OF THE BRITISH CONFERVA. 



With Notes, and a Description of the Species not elsewhere 

 mentioned in this Work. 



The defcript'wns which I have marled with an ajferijk are taken from dried Jpecimens. 



A. Subarticulata.\ 

 i. dichctoma. C. fills fubarticulatis dichotomis, fafcictilatis, itriclis, fafligiatis, 

 viridibus ; ramis elongatis, remotis. T. 15. 

 What I have defcribed as capfules under this fpecies, Dr. Roth fuppofes 

 to be the eggs of infefts, and I regret that I have fince had no opportunity 

 of re-examining them. Mr. Turner has obferved, that when kept but a 

 {hort time in water they fall off in great numbers, but he fays that their 

 appearance is precifely fimilar to that of the capfules of other Vaucheritc, 



I The four firft fpecies of this divifion belong to the Vaucherian genus Eetoificrmj, lately taken 

 up (moft injudicioufly in my opinion) in Enghfli Botany by the name of Vauchtria. The able author 

 of the Hut. da Can/, d'tau deuce has defcribed many plants as diftincft fpecies of this genus, of which 

 by far the larger part have been found in Britair, but, as has already been obferved in the intro- 

 duction to this work, p. 17, I have every reafon to believe that thefe, inftead of being ranked as 

 fpecies, do not even deferve to be confidercd as varieties, all of them depending upon the capfules, 

 of which the number and fituation vary in the fame individual. I have therefore not only here 

 omitted to notice them, as I thought that the fo doing would unneceflaiily fwell the number 

 of my fpecies, but I even doubt whether of the four here defcribed the three latter are fpecificallr 

 •liftinct from each other. 



