HITCHCOCK — PI.ANTS OF AMES, IOWA. 4S9 



Linum usitatissimum, L. Spec. 



Escaped from cultivation ; frequent. 



GERANIA CEj^. 



Geranium maculatum, L. Spec. 

 L'pland woods ; abundant. 



OxALis viOLACEA, L. Spec. 



Rocky places and cultivated ground ; frequent. 



0. coRNicuLATA, L. Spec. 



Woods and pastures ; common. 

 Var. STRiCTA, (L.) Sav. in Lam. Diet, iv.— O. stricta, L. Spec. 

 Woods and pastures; common. 



Impatiens aurea, Mulil. Cat.—/ jjalllda, Nutt. Geu. 

 Low places in woods; abundant. 



1. BiFLORA, Walt. Fl.— /. fulva, Nutt. Geu. 



Low woods: frequent. 



RUTACE.E. 



Xanthoxylum Americanum, Mill. Diet. 

 Low woods ; abundant. 



CELASTRACE^E. 



Celastrus scandens, L. Spec. 



Thickets and woody bluffs; not uncommon. 



f'requent along clay bluffs of Skunk river. 



EuoNYMUS atropurpureus, Jacq. Hort. Vind. ii. 1772. 

 Low woods; not uncommon. 



RHAMNA CE^E. 



Ceanothus Americanus, li. Spec. 



Prairie and open woods; abundant. 



C. OVATUS, Desf., var. pubescens, Torr. & Gray, Fl. i. 



Dry hills ; scarce. 



Northeast of the College, beyond Squaw creek. Fruit matures earlier than in 

 the above. 



VI TA CE.^. 



VlTis RiPARiA, Michx. Fl. 



Woods and thickets, both upland and lowland; common. 

 Ampelopsis quinquefoeia, (L.) Michx. Fl. — Hf^dtra quinquefo- 



lia, L. Spec. — Viiis quinqnefolia. Lam. 111. ii. 

 Lowland woods ; abund-rint. 



SA FIND A CE/E. 



.^sculus glabra, Willd. Euum. 



Des Moines river at Boone (Prof. Budd). 



