130 PULSE FAMILY. 



*+ -w- Pod not completely 2-ceUed. 



A. di8t6rtus, Torr. & Gray. Low, diffuse, nearly smooth ; leaflets 

 oblong, eniarginate ; flowers pale purple ; pod curved, thick-coriaceous. 

 111. to Iowa and S. to Tex. 



* * Pod l-celled, neither stiture intruslvp, or the ventral more than dorsal. 



A. Co6peri, Gray. Gravelly shores X. and W. ; resembles the fore- 

 goini:, but siiuiother ; l'^-2° high, with suiall white flowers in a short spike, 

 ami inflated .ivoid pods about 1' long, thin-walled, and not divided inter- 

 nally ; flowers in early summer. 



24. ROBINIA, LOCUST TREE. (For two early French botanists, 

 Eobin.) >.'atives of Atlantic, Middle, and Southern States, planted, 

 and the connnon Locust running wild N. Flowers late spring and early 

 summer. 



R. Pseudacacia, Linn. CuxMmon L. orFALSK Acacia. Tree ; branch- 

 lets naked ; racemes slender and loose-hanging ; flowers fragrant, white ; 

 pods smooth. Used as a stock for next two. 



R. visc6sa, V'ent. Clammy L. Small tree; branches and stalks 

 clannny ; prickles very short ; racemes short and dense ; flowers faintly 

 rose-colored ; scentless pods rough, clammy. Very rare wild. 



R. hlspida, Linn. Bristly L. or Rose Acacia. Ornamental shrub; 

 branches and stalks bristly ; broad leaflets tipped with a long bristle ; 

 flowers large and showy, bright rose-colored in close or loose racemes ; 

 pods clammy-bristly. 



25. CARAGANA, PEA TREE. (Tartar name.) Planted for ornament. 



* Petioles luith luiarmed tip. 



C. arborescens, Lam. Siberian- P. Shrub or low tree; leaflets 4-0 

 pairs, oval-oblong, downy ; stipules firm or spinescent ; flowers 2 or 3 

 together, yellow, in spring ; pod cylindric. Siberia. 



C. microphyl/a, Lam. Low shrub ; leaflets 0-9 pairs, 4-5 lines long ; 

 stipules thorny ; flowers solitary or in pairs ; pod small, compressed. Asia. 



* * Petioles vnth spiny tips. 



C. Chamlagu, Lam. Chinese P. A low or spreading shrub; has 2 

 rather distant pairs of smooth, oval, or obovate leaflets ; stipules spiny. 

 China and Japan. 



C. frufescens, DC. Low shrub ; leaflets 2 pairs, obovate, crowded at 

 the summit of the petiole ; stipules soft. Siberia to Japan. 



26. COLUTEA, BLADDER SENNA. (Derivation obscure.) 



C. arborescens, Linn. Common B. Leaflets 7-11, oval and rather 

 truncate; racemes of 5-10 yellow flowers, in summer; pods large, very 

 thin-walled, closed. Eu. 



27. "WISTARIA. (For Pmf. R7.s/«r of Phila.) Very m-namental 

 woody twiners; flowers spring. 



W. frutescens, Poir. American W. Soft-downy when young ; leaflets 

 9-15, lancL-ovate ; raceme of showy blue-purple flowers, dense ; calyx 

 narrowish, wings with one short and one very long appendage at the base 

 of the blade ; ovary smooth. Along streams W. and S., and cult. 



W. Chinensis, DC. Chinese W. A very fast-growing climber (sometimes 

 20'^ in a season) ; racemes long, pendant ; wings appendaged on one side 



