104 PLANTS OF RHODE ISLAND. 



6. bombycina, Ag. Very common. 



VesecuUfera, — , Bass. Alg. Rhod. No. 105. 



7. punctalis, Dillw. Common. 



8. abbreviata, Eab. 



9. tenerrima, Kg. Davisville, &c. 



RHIZOZLONIUM, Kg. 



1. fontinale, Kg. Quiduessett, &c. 



2. fluitans, Kg. Providence, &c. 



Vaucheriaceoe. 

 VAUCHERIA, D. C. 



1. Thuretii, Woron. 



2. velutina, Ag. Prof. J. W. Bailey. 



Botrydiacexe. 

 BOTRYDIUM, L. 

 granulatum, L. Newport, {J. W. Bailey^ sub, Hydrogastro.) 



Volvocaceos. 

 VOL VOX, Ehrh. 

 globator, L. Very commou in ponds, &c. 



PANDORINA, Ehrh. 

 morura, Bory. Common. 



BUGLENIA, Ehrh. 

 viridis, Ehrh. Quidnessett, &c. 



CHLAMYDOCOCCUS, A.Br, 

 pluvialis, A. Br. Providence, &c. 



Protococcacece. 

 PEDIASTRUM, Meyen. 



1. simplex, Meyen, var. duodenarius, (Bail.) Providence. 



2. ellipticum, Hass. Prof. J. W. Bailey. No. 165. 



3. angulosum, (Ehrh.) Menegh. Providence, &c. 



4. forcipatum, (Corda.) A. Br. Spectacle Pond. 



5. Boryanum, (Turpin,) Menegh. Very common. No. 164. 



6. pertusum, Kg. Spectacle Pond, Providence, Ilr. Lathrop. 



var. clathratum, A. B. More common. 



7. Ehrenbergii, (Corda,) A. Br. Quite common. 



var. cuspidatum, A. Br. Spectacle Pond, 

 var, ? J. W. Bailey. 



P. heptactis, Ralfs. Alg. Rhod. No. 163. 



8. tetras, Ehrh. Common. 



9. Selinaea, Kg. Prof. J. W. Bailey. Desm. U. S.p. 155. 



10. constrictum, Hass. Prof. J. W. Bailey. Desm. U. S. p. 155. 



