PLANTS OF RHODE ISLAND. 
os 
gk ot ak ee 
Se? & 
bombycina, Ag. Very common. 
Veseculifera, —, Hass. Alg. Rhod. No. 105. 
punctalis, Dillw. Common. 
abbreviata, Rab. 
tenerrima, Kg. Davyisville, &c. 
RHIZOZLONIUM, Kg. 
fontinale, Kg. Quidnessett, &c. 
fluitans, Kg. Providence, &c. 
Vaucheriacee. 
VAUCHERIA, D.C. 
Thuretii, Woron. | 
velutina, Ag. Prof. J. W. Bailey. 
Botrydiacee. 
BOTRYDIUM, L. 
granulatum,L. Newport, (J. W. Bailey, sub, Hydrogastro.) 
Volvocacee. 
VOLVOX, Ebrh. 
globator, L. Very common in ponds, &c. 
PANDORINA, Ehbrh. 
morum, Bory. Common. 
HUGLENIA, Ehrh. 
viridis, Ehrh. Quidnessett, &e. 
CHLAMYDOCOCCUS, A. Br. 
pluvialis, A. Br. Providence, &c. 
Protococcacee. 
PHDIASTRUM, Meyen. 
simplex, Meyen, var. duodenarius, (Bail.) | Providence. 
ellipticum, Hass. Prof. J. W. Bailey. No. 165. 
angulosum, (Ehrh.) Menegh. Providence, &c. 
forcipatum, (Corda.) A. Br. Spectacle Pond. 
Boryanum, (Turpin,) Menegh. Very common. No. 164. 
pertusum, Kg. Spectacle Pond, Providence, Mr. Lathrop. 
var. Clathratum, A. B. More common. 
Ehrenbergii, (Corda,) A. Br. Quite common. 
var. cuspidatum, A. Br. Spectacle Pond. 
var. ? J. W. Bailey. 
P. heptactis, Ralfs. Alg. Rhod. No. 163. 
tetras, Ehrh. Common. 
Selinzea, Kg. Prof. J. W. Bailey. Desm. U.S. p. 155. 
constrictum, Hass. Prof. J. W. Bailey. Desm. U.S. p. 155. 
