Key 



35 



Page 



m. Flowers composite — See Key to 



Asteraceae Asteraceae — 205 



n. Flowers simple, 

 (x) Shrubs. 



r. Branches thorny. 



(1) Leaves pale green Condalia — 132 



(2) Leaves not pale green Zizyphus — 131 



s. Branches not thorny. 



(1) Branches zigzag Colubrina — 131 



(2) Branches not zigzag Croton — 120 



(y) Vines or stems creeping or 



prostrate. m 



r. Sap milky Asclepiodora — 163 



s. Sap not milky Jussiaea — 146 



(z) Plants neither shrubs nor 

 vines. 



1. Petals 3 or none (Tillandsia 



has 3 petals), 

 m. Sap milky. 



a. Leaves crowded in a 



rosette at tip of stem.. Poinsettia— 125 



b. Leaves not crowded in a 



rosette, 

 r. Flowers in a terminal 



spike . . . Stillingia— 123 



s. Flowers not in a spike. 



(1) Flowers few in a 



cup formed by 2 



bracts Tithymalus — 125 



(2) Flowers not in cups 



formed by bracts Chamaesyce — 124 



n. Sap not milky. 



a. Aerial, silvery-grey plant Tillandsia — 61 



b. Plants not aerial. 



r. Pods bristly-hairy Tragia— 122 



s. Pods not bristly-hairy. 



(1) Pods 3-lobed..... Croton— 120-1 



(2) Pods not 3-lobed. Phyllanthus— 120 



2. Petals or lobes of corolla 



usually 4. 

 r. Stamens 6. 



(m) Flowers spurred.... Capnoides — 83 



