Prof. Brawl's Notice of the Charce of North America. 93 



4. Ch. capitellata, Elliott. — Georgia, Le Conte, in different 

 herbaria. Called C. tenella by Braun, before he was aware of 

 Elliott's name. Where has Elliott described it ? 



5. Ch. tenuissima, Desv. — Not to be distinguished from Euro- 

 pean specimens. Boston, Greene, in lierb. Decaisne. 



B. Chare hypogynje, A. Braun. 



6. Ch. Schweinitzii, A. Braun. — Subspecies of Ch. coronata, 

 and very near Ch. Braunii. 



«. longibracteata. = Ch. foliolosa, Schwein. (non Muhlenb.) 



(9. brevibracteata, condensata. = Ch. foliolosa, Un. Itin. 



y. brevibracteata, laxa. =C h. opaca, Schwein. (non Agardh.) 



Pennsylvania and Georgia, in many herbaria. This species 



appears to be generally mistaken in the United States for Ch.fo- 



liolosa, Mnhl. ; but in Willdenow's herbarium an entirely different 



plant, sent by Muhlenberg, is preserved under this name. 



7. Ch. vulgaris, And. — Pennsylvania, Georgia, etc. in differ- 

 ent varieties. 



8. Ch. aspera, Willd. — Newfoundland, La Pylaie. 



9. Ch. fragilis, Desv. — Newfoundland, La Pylaie; Pennsyl- 

 vania? (Schweinitz, under his Ch. opaca; Georgia? (Le Conte 

 in herb. Zeyher, mixed with Chara vulgaris, Najas flexilis, and 

 the undescribed Zanichellia cochlospermum, A. Braun. 



10. Ch. foliolosa, Muhlenb. in Willd., can hardly be distin- 

 guished from the East Indian Ch. Zeylanica, belonging to the 

 quite distinct group of Gymnopodce, A. Braun. 



11. Ch. Michauxii, A. Braun. — Ohio, Michx. and Dr. Frank. 

 This belongs to the same group as the foregoing, and must be 

 ranged together with it as subspecies, under the principal species 

 Ch. polyphylla, A. Braun. 



