438 



P. arifoliuni, 1.. 



Lnwmouiuls. JJrrkt'lcy : near Mart iii^^hm-ii-. Mon- 

 (iii^alia: iirar Moi'.ii'aiitdwn, and clscwlu'rc fVefjuent. 



P. Convolvulus, r.. IMack IJiiulwcct'l. 



Cianlciis and waste place,-^. Favette: near Nuttallburg 

 — ].. \V. N. Mnsim : near Point I'leasant. 



P. duinstorum, L., /'//•. scand.eiis(l..),(:;rav. ('limiting;- False. 



Buckwheat. (1., L. W. X., M. .^' (I. 



Low grounds along sti'canis. 



FAGOPYRUM, Gsertn. 



F. ESCULENTUM. Moeneli. lUlckwlieat. (1. \V. N., M. ct (J. 



Waste gi'ounds and eultivatecl fields. A frequent es- 

 cape. 



RUMEX, L. 



R. Brittanicus, !.. Water Dock. 



Wet I (laces. Ohio: on Iv)gg"s Island— M. A' 'i. 

 HcrkeJey, near ^lai'tinsluii-g. 



R. CRISPUS. L. Curled Dock. M. A- (;. 



Waste i)laees and culti\ated fields. Fre(|ueid. 



R. OBTUSirOLIUS. L. r>itter Dock. L. W. X. 



Waste gi'ounds and ctiltivated tic'lds, conunon. 



\l. CJdSI'CS X OJJTUSIFOLILS. 



^\^aste places. ^lonongalia: streets of Morgantown. 



R. SANGUINEUS, L. Bk)ody Dock. 



Dain]> [tlaces in waste grounds. Berkidey: near Mar- 



tinshnrg. 



R CONGLOMERATUS, Murray. 



Shady places. Fayette: near Xuttallhurg— F. W. X. 



R. ACETOSELLA, F. Horse Sorrel. J.. F. W. X.. V. M..M. ,{■ G. 



Abundant everywhere; even along paths in the dense 

 spmet' forests of the liigher mountains. 



ARISTOLOCHIACE^. 



ASARUM. L. 



A. Canadense, L. WiM (iinger. ••Colic Hoot." M. A- C. 



llich woods. Wirt: near lUu'ning Springs, (iilnier: 



