494 PATAGONIAN EXPEDITIONS! BOTANY. 



6. ZUCCAGNIA Cav. 



Glutinous shrubs, with even-pinnate leaves, and small, caducous stipules. 

 Leaflets small, coriaceous. Terminal racemes of yellow flowers, having 

 very short calyx-tube, and subequal segments ; stamens 10, free, bent down, 

 filaments hairy at base. Ovary short-stalked, i -seeded. Legtime short, 

 flat ; the seed pendent. 



Only species : 



Z. PUNCTATA Cav. 



Leaflets 7-8 pairs, alternate, elliptic, glutinous, punctate. 

 Shrub over i meter high, with tortuose branches. 

 (Mountains of Chili) ; N. Patagon. 



7. CyESALPINIA Linn. 



Trees or climbing shrubs, sometimes spinescent, with bipinnate leaves 

 and racemose, yellow or red flowers. Calyx-tube short, its lowest seg- 

 ment often large. Stamens 10, declined, anthers all similar, dehiscing by 

 slits. Legume short, compressed, coriaceous, 2-valved, or thick and inde- 

 hiscent, often septate. Seeds few. 



Species 40, in warm parts of both hemisperes. 



i. C. GLAUCA (Ort. sub Larrea] O. Ktze. (Hoffmanseggia DC.) 

 Root creeping, here and there tuberous. Stem decumbent, scarcely 



suffruticose. Leaflets 3-6 pairs and terminal, ovate-oblong, glaucous. 



Pods falciform. 



(Boliv. ; Argent.); Patagon. 



C. GLAUCA ANDINA Phil. 



Depauperate, nearly stemless. 

 (Bolivia) ; Patagon. 



C. GLAUCA PAUCIGLANDULOSA O. KtZC. 



Glands sparse, or none, or confined to the inflorescence. 

 Patagon. 



2. C. PR^ECOX Ruiz. & Pav. 



Tree. Petioles of the even-bipinnate leaves, ending in a spine. Pinna 

 3 pairs, each having 5-7 pairs of small, emarginate leaflets. Stipular 

 spines strong, conical. Legumes straight. 



(Chili) ; N. Patagon. by Rio Negro. 



