BOTANY. 391 



Spirogyra insignis (Hass.) Kg. 



Granville, H. L. Jones (Bull. Den. U.) 



Spirogyra longata (Vauch.) Kg. 

 Delhi, G. B. Twitchell. 



Spirogyra nitida (Dill.) Link. 

 Delhi, G. B. Twitchell. 



Spirogyra ouinina (Ag.) Kg. 



Painesville, Logan county, H. C. Beardslee ; Fairfield Co. W. A. Kellerman. 



Spirogyra rivularis Rab. 



Paiuesville, Logan Co., H. C. Beardslee. 



Spirogyra tenuissima (Hass.) Kg. 

 De.hi, G. B. Twitchell. 



Spirogyra yarians (Hass.) Kg. 



Painesville, H. C. Beardslee ; Pickaway Co., W. A. Kellerman. 



Spirogyra weberi Kg. 



Granville, H. L. Jones (Bull. Den. U.) 



32. ZYGNEMA Kg. 



ZVGXEMA CRUCIATUM Ag. 



Granville, C. L. Payne (Bull. Den. U.) 



Zygnema INSIGNE Kg. 



Painesville, H. C. Beardslee. 



Zygnema stellium Ag. 



PaiuesvHle, H. C. Beardslee ; Delhi, G. B. Twitchell. 



Zygnema stellium genuinum Kirch. 

 Granville, C. L. Payne (Bull. Den. U.) 



33. PLEUROCARPUS A. Br. 



Pleurocarpus columbianus minor Wolle. 

 Painesville, H. C. Beardslee. 



Pleurocarpus mirabilis A. Br. 



Painesville, H. C. Beardslee ; Columbus, Mrs. W. A. Kellerman. 



34. HYALOTHECA Ehrb. 



HYALOfHECA MUCOSA ( Mert.) Ralfs. 



Granville, C. L. Payne (Bull. Den. U.) 



