174 UNIVERSITY OF MISSOURI STUDIES [3 '6 



244. OEANOTHUS L. Red-root. 



622. O. Americanus L. New Jersey tea. 

 Open thickets and dry woods; infrequent. 



Ontario and Michigan to Manitoba; Florida to Texas. 



623. O. pubescens (T. & G.) Rydb. [C ovatus pubescens 

 T. & G.]. Hairy red-root. 



Pansy Hill and other barren knolls; frequent. 

 Michigan to Iowa and Nebraska; Arkansas to Texas. 



Family 68. VITACEAE Lindl. Grape family. 



245. VITISTourn. Grape. 



624. V. aestivalis Michx. Summer grape. 

 Thickets and fence-rows; frequent. 



New York to Michigan and Missouri; Florida to Mis- 

 sissippi. 



625. V. cinerea Engelm. Downy grape. 

 Rocky banks along streams; uncommon. 

 Illinois to Kansas; Missouri to Texas; Florida. 



625a. V. cinerea canescens (Engelm.) Bailey. Hoary 



GRAPE. 



Low thickets; frequent. 

 Illinois and Missouri to Texas. 



626. V. cordifolia Michx. Frost grape. 

 Frequent in woods and thickets along streams. 

 New York to Kansas; Florida to Texas. 



627. V. riparia Michx. [F. indpijia L.]. Riverside 

 grape. 



Common along streams: the fruit ripe in the fall. 



New Brunswick to Montana; Florida to Texas and 

 Colorado. 



627a. V. riparia praecox Engelm. [F. vidpina praecox 

 (Engelm.) Bailey]. June grape. 



Along streams: the fruit ripe in July. 



Missouri. 



