76 LEGUMINOSAE 



more or less persistent soft stipules above the leaf-scars; 

 round-ovoid solitary sessile small buds with 2-4 exposed scales; 

 odd-pinnate leaves with moderately small entire short-stalked 

 leaflets; rather large papilionaceous 1 flowers in stalked axil- 

 lary clusters; and thin-walled inflated stalked few-seeded 

 legumes. 



Leaves flat. C. arborescens. 



Leaves crisped. C. arborescens crispa. 



Leaves concave. C. arborescens bullata. 



HALIMODENURON. Salt Tree. 



Deciduou& armed shrubs with moderate roundish twigs; 

 roundish pale continuous pith; alternate raised crescent- 

 shaped leaf-scars with 1 bundle-trace; minute stipule scars; 

 ovoid sessile buds with several exposed scales; abruptly pin 

 nate small leaves with the rachis ending in a spine beyond the 

 few leaflets; rather large rosy papilionaceous perfect flowers, 

 slender-stalked on swollen short spurs; and short slender- 

 stalked swollen legumes with several small rounded seeds. 

 Leaflets bristle-tipped. H. halodendron. 



CARAGANA. Pea Tree. 



Deciduous shrubs often with leaf- or stipule-spines; mod- 

 erate or slender often angled twigs; angled often spongy or 

 evanescent pale pith; alternate raised small crescent-shaped 

 leaf scars with 1 bundle-trace, flanked by persistent stipules; 

 ovoid rather large and appressed solitary sessile buds with 

 several exposed scales; abruptly pinnate or subdigitate leaves 

 with rather small entire often mucronate leaflets and pro- 

 longed rachis; perfect moderate-sized yellow papilionaceous 

 flowers usually in small clusters from axillary spurs; and not 

 greatly swollen legumes. 



1. Stipules and rachis-tip bristle-like: leaves digitate. C. frutex. 

 Stipules pungent: rachis bristle-like: leaves pinnate. 2. 

 Rachis pungent-tipped. 3. 



2. Leaves short, elliptical-obovate. C. arborescens. 

 Leaves elongated, linear-spatulate. C. arborescens Lorbergii. 



