MICROSCOPICAL OBSERVATIONS. 



GRAHAMviLLE, s. c. — continued. 

 In a ditch by the roadside, near Gopher Hill, I found- 



Micrasterias pinnatifida, Ralfs. 

 Xanthidium annatum, Ralfs. 



Pinnularia amphigompha, Ehr. 

 " iridis, Ehr. 



GRAHAMVILLE, s. c. — Continued. 



Near the village, by the side of the road to " Hap Hazard, 

 the roots of Utricularia verticillata, the following species, viz : 



I found among 



Desmidie^-e. 

 Aptogonum desmidium, Ehr. 

 Closterium acerosum, Schr. 

 Desmidium Swartzii, Ag. 

 Didymoprium Grevillii, Ralfs. 

 Euastrum affine, Ralfs. 

 Penium interruptum, Breb. 

 Spirotfenia condensata, Breb. 

 Xanthidium cristatum, Breb. 

 " fasciculatum, Ehr. 



DlATOMACE^. 



Himantidium bidens, Ehr. 

 Diatoma stellata, B. 



Infusoria. 

 Amoeba princeps, Ehr. 

 Arcella vulgaris, Ehr, 

 " hyalina, Ehr. 

 Dinobryon sertularia, Ehr. 

 Hydatina senta, Ehr. 

 *Peridinium carolinianum, B. 

 Pterodina patina, Ehr. 



GRAHAMVILLE, s. c. — Continued. 

 * 

 A ditch by an old saw-mill near the village furnished these species, viz : 



Desmidie^. 

 Euastrum ansatum, Ehr., abundant. 

 Hyalotheca dissihens, Breb. 

 Micrasterias rotata, Ralfs. 

 Penium closteroides, Ralfs. 

 " interruptum, Breb. 

 Spirotaenia condensata, Breb. 



DlATOMACE^. 



Naunema, undetermined. 

 Surirella splendida, Ehr. 



Alg^. 

 Tetraspora lubrica, Ag. 

 Vaucheria cespitosa, Ag., with a 

 parasitic Rotifer in its branches. 



GRAHAMVILLE, s. c. — Continued. 

 The mill-pond at " Hap Hazard" furnished the following species, viz : 



Desmidie^. 



Closterium acerosum, Schr. 



" lunula, Ehr. 



Didymoprium Borreri, Ralfs. 

 Docidium nodulosum, Breb. 

 Euastrum verrucosimi, B. 

 Micrasterias incisa, Kg. 



Micrasterias denticulata, Breb. 

 Penium digitus, Breb. 

 Scenedesmus obhquus, Kg. 

 *Sphaerozosma serratum, B. 

 Spirotaenia condensata, Breb. 

 Staurastrum margaritaceum, Ehr. 



