l68 -UNIVERSITY OF MISSOURI STUDIES [316 



277. RULAC Adans. Box elder. 



682. R. Negundo (L.) Hitchc. [Acer Negimdo L. ; Negundo 

 Negundo (L.) Karst. ; Negundo acer aides Moench]. 

 Common box elder. 



Common along streams, 5100 7000 ft. (Daniels, 390). Also 

 St. Vrain creek below Lyons (Ramaley). 

 Vermont to Idaho; Florida to Texas. 



683. R. Texanum (Pax) Small [Acer Texanum Pax; Acer 

 Negundo Texanum Pax]. Texan box elder. 



Bear and Bluebell Canons (Ramaley). Foothills near Boul- 

 der (Rydberg). 



Saskatchewan to Montana; Missouri to Arizona. 



Order 27. RHAMNALES. 

 Family 69. FRANGULACEAE D C. Buckthorn family. 



278. CEANOTHTJS L. New Jersey tea. 



684. C. velutinus Dougl. Varnished New Jersey tea. 

 Common on the foothills, 6000-8000 ft. (Daniels, 272-). Also 



mountains between Sunshine and Ward (Rydberg) ; Eldora 

 and near foot of Long's Peak (Ramaley). 



Montana to British Columbia ; Colorado to California. 



685. C. mollissimus Torr. [C. ovatus pubescens T. & G. ; C. 

 puhescens (T. & G.) Rydb.] Hairy New Jersey tea. 



Common on the mesas and foothills, 5600-8000 ft. (Dan- 

 iels, 65). Eldora (Ramaley). 



Michigan to South Dakota; Missouri to Colorado. 



686. C. subsericeus Rydb. Silkish New Jersey tea. 

 Slopes of Green Mt., 6000-7000 ft. (Daniels, 756). Plains 



north of Marshall, and Boulder Cafion (Ramaley). Appears 

 like a hybrid between the preceding and the next. 

 Colorado. 



687. C. Fendleri Gray. Fendler's New Jersey tea. 

 Common on the mesas, foothills, and mountains, 5600-9000 



ft. (Daniels, 91). Also in the mountains between Sunshine 



