74 LEGUMINOSAE 



4. Leaflets scarcely 20 mm. long: flowers axillary. C. hirsutus. 

 Leaflets nearly 25 mm. long: flowers in heads. C. supinus 



AMORPHA. False Indigo. 



Deciduous shrubs 1 with slender more or less sulcate 

 branches; rather 3-sided homogeneous pith; white wood with 

 minute ducts, somewhat more crowded in spring and in wavy 

 tangential lines in summer, and fine medullary rays; alternate 

 crescent-shaped somewhat raised leaf-scars with 3 bundle- 

 traces; small stipule-scars; appressed small ovoid buds with 

 about 4 exposed scales; odd-pinnate glandular-punctate leaves; 

 small papilionaceous more or less violet flowers; and small 

 glandular pods. 



1. Leaves nearly se&sile: gray. (Lead plant). A. canescens. 

 Leaves distinctly stalked. 2. 



2. Hairy when young. A. fruticosa. 

 Glabrous. A. glabra. 



WISTERIA. Wistaria. 



Deciduous twining shrubs with rather slender subterete 

 twigs; moderate somewhat angled continuous pith; alternate 

 elevated half-round or squarish leaf-scars, short-spurred at 

 base, with 3 compound bundle-traces; no stipule-scars; 

 sessile round or ovoid buds with about 3 exposed 

 scales; large odd-pinnate leaves with short-stalked entire leaf- 

 lets; perfect showy papilionaceous flowers in terminal panicles; 

 and moniliform legumes with several large plump seeds. 



1. Flowers appearing before the leaves, scentless. 2. 

 Flowers appearing after the leaves, fragrant. 3. 



2. Panicles 30 cm. long. W. floribunda. 

 Panicles 50-90 cm. long. W. floribunda macrobotrys. 



3. Panicles short (8-10 cm.), glandless'. W. frutescens. 

 Panicles moderate (15 cm. or more) : pedicels and calyx 



pubescent and also glandular-papillate. W.macrostachys. 



ROBINIA. Locust. Rose Acacia. 

 Deciduous trees or shrubs, sometimes with stipular spines, 



