46 
IOWA ACADEMY OP SCIENCES 
ANACARDACEAE. 
RHUS. 
517. R. glahra L. Common in woods. 
518 K. radicans L. Common in woods and spreading to fields. 
CELASTRACEAE. 
Euonymus. 
519. E. atropurpureus Jacq. Plenty in woods and along streams. 
Celastrus. 
520. G. scandens L. Common in woods and along streams. 
STAPHYLEACEAE. 
Staphylea. 
521. 8. trifoUa L. Plenty in w’oods. 
aceraceae. 
Acer. 
522. A. saccharinum L. Common in woods. 
523. A. saccharum Marsh. Scarce in woods. 
524. A. nigrum Michx. Common in woods. 
525. A. ncgundo L. Common. 
HmPOCASTANACEAE. 
Aesculus. 
526. A. octandra Marsh. Plenty in v/oods. 
BALSAMINACEAE. 
Impatiens. 
527. I. hiflora Walt. Abundant in swamps and marshes. 
(I. fuJva Nutt.) 
528. I. aurea Muhl. Similar situations and nearly as abundant. 
(I. pallida Nutt.) 
RIIAIklNACEAE. 
Ceanothus. 
529. G. americanus L. Abundant on prairies. 
530. G. ovatus pudescens T. & G. Scarce on stony hillsides. 
VITACEAE. 
ViTTS. 
531. Y. vulpina L. Common along streams. 
532. V. palmata Vahl. Rather rare in woods. 
