BOTANY. 183 



XCI. Order POL,YGONACE^. Buckwheat Family. 



440. FAGOPYRUM Tourn. Buckwheat. 



Fagopyrum fagopyrum (L.) Karst. (K esculentum Moench.) Buckwheat. 

 Fields and waste places. 



441. RUMEX L. Dock. Sorrel. 



Rumex ACETOSELLA L. Field or Sheep Sorrel. 

 Common. 



Rumex altissimus Wood. Pale Dock. 



Painesville, Wm. C. Werner; Lorain Co., A. A. Wright (Cat); Licking Co., H. L. 

 Jones; Cincinnati, Joseph Clark (Cat.) 



Rumex britannica L. Great Water-Dock. 



Lake Co., Franklin Co., Wm. C. Werner; Licking Co., H. L. Jones (Cat.) ; Cin- 

 cinnati, Jos. F. James (Cat,) 



Rumex crispus L. Curled Dock. 

 Common. 



Rumex obtusifolius L. Bitter Dock. 

 Common. 



Rumex salicifolius Weinmann. White Dock. 

 Painesville, H. C. Beardslee (Cat.) 



Rumex sanguineus L. 



Common, H. C. Beardslee (Cat.) 



Rumex verticillatus L. 

 Frequent. 



442. POLYGONUM Tourn. KnoTweed. 



Polygonum acre H. B. K. Water Smartweed. 

 Common. 



Polygonum amphibium L. 



Painesville, H. C. Beardslee (Cat.); Licking Co., H. L. Jones (Cat.) ; Cincinnati, 

 Thos. G. Lea ( Cat.) 



Polygonum arifolium L. Halbred-leaved Tear-thumb. 

 Frequent in swamps and low places. 



Polygonum aviculare L. 

 Common. 



Polygonum careyi Olney. 



Painesville, H. C. Beardslee (Cat); Licking Co., H L. Jones (Cat.) 



