CiESALPINiA 



129 



Fig. 163. — Australian Senna. 



Fig. 164. — Corymbed Senna. 



KEY TO THE ORNAMENTAL SENNAS 



* Herbaceous but shrub-like in appearance, sometimes cultivated. 



Hardy. Leaves light green of 8-18 blades ; flowers in axillary 

 clusters near the tips of branches ; pods linear, flat, curved, 3-4 

 inches long. Good for damp places. Wild Senna — Cassia mary- 

 landica. 



* Shrubs, hardy only far South. (A.) 



A. 6-10 feet high ; leaves with 12-20 narrow pointed blades ; Clus- 

 ters of narrow flowers shorter than the leaves, pods thin. Aus- 

 tralian Senna (163) — Cassia Sophora. 

 A. 4-10 feet high; leaves with 6 somewhat curved blunt blades. 



Corymbed Senna (164) — Cassia corymbosa. 

 A. Tree-like shrub with soft gray hairs all over ; leaves with 6-8 

 narrow linear blades ; flowers deep yellow. Good for dry locali- 

 ties. Artemisia-leaved Cassia — Cassia artemesioides. 



Caesalpinia. The Brasiletto shrubs and trees are tropic. Leaves 

 abruptly twice-pinnate ; flowers with 5 stalked petals and 10 very long 

 and bright colored stamens ; the fruit is a pod. Most of the species in cul- 

 tivation in this country are hardy only in Florida and southern California. 

 The most hardy species, Japan C.esalpinia (165) — Cajsalpinia japonica, 

 apgar's shrubs — 9 



