38 



the note at the beginning of this fedtion, and in the introduction as to 

 the Ettofpermtii I copy the following Extract from a Letter from the late 

 Dr. Mohr to Mr. Turner. 



" Taking this plant for the true C. comoides of Dillwyn, I foaked my 

 original fpecimen of it, and what did I find ? An Eilofpcrma of the Rev. 

 M. Vaucher, but as Dr. Roth has remarked, without capfules as they are 

 called. I hardly think there is more than one fpecies of Eclofperma in the 

 world, (which may feem very paradoxical) but if there are more to be 

 diftinguiflied, you will allow it can only be done by regarding the Vaucheriau 

 grains or Rothian capfules." 



B. articulata, fills cylindrlcis. 



a. articulis brevijjimis.\ 



* Jimp I ices. 



'. fontinalis. C. filis fimplicibus ftri£lis, brevibus fafciatis, atro virentibus; 



diflepimentis diftinftis ; articulis breviflimis. T. 64. 



From the defcriptions in the third fafciculus of the Catalefla Botanica, it 

 may be doubted whether Dr. Roth's C. limofa is not C. fontinalis of Hudfon, 

 and vice verfa. 



8. limofa. C. filis fimplicibus, ftri£iis, tenuiflimis, fafciatis lubricis, mucofis, 

 ccerulco-virentibus; diffepimentis obfoletis ; articulis breviflimis. T. 20. 



9. decarticans. C. filis fimplicibus, curvis, tenuilimis fafciatis, denfiflime 

 contextis, cceruleo-virentibus ; diffepimentis obfoletis ; articulis breviflimis. 

 T. 26 and T. A. 



C. violacea. Fl. Ang. p. 592. 

 C. coiifragofa. Fl. Scot. p. 976. 



•)• In this divifion are comprehended the Oscillator!* of Vaucher, a mod diftinct and natural tribe 

 of Conferva;, which will in all probability hereafter form a fcparate genus. I exceedingly regret 

 that 1 have not been able to find a more happy definition of this divifion, not knowing, as is already 

 obferved in the Introduction, how to charaiiterife the particular ftructure of the joints, which feeim 

 unlike thole of all other Conferva;. 



