APOGYNACEAE. 115 



capsules 5-6 mm. long. Hammocks, U. keys, L. keys. [E. K.] (Bali., Cuba, 

 Ant.) 



Order ASCLEPIADALES. 



Herbs, shrubs, or trees, commonly with a milky juice. Leaves alter- 

 nate or opposite : blades entire. Inflorescence cymose, sometimes umbel- 

 late. Calyx of usually 5, partially united, sepals. Corolla of 5, partially 

 united, petals. Androecium of mostly 5 distinct or monadelphous stamens, 

 partially adnate to the corolla in Asclepiadaceae and accompanied by a 

 5-lobed crown. Pollen granular or in waxy masses. Gynoecium of usually 

 2 carpels, sometimes united only at the apex. Stigma terminal. Fruit a 

 pair of follicles, or drupaceous. 



Styles united : stamens distinct : pollen loosely granular. Fam. 1. APOCYNACBAE. 

 Styles distinct : stamens usually monadelphous : pollen 



united into waxy masses or the grains in groups of 4. Fam. 2. ASCLEPIADACBAB. 



FAMILY 1. APOCYNACEAE. DOGBANE FAMILY. 



Perennial herbaceous or woody plants, with mostly dichotomous, 

 cymose inflorescence. Androecium of mostly 5 stamens, with the anthers 

 converging around the stigma or slightly adhering to it, not accompanied 

 by a crown. Gynoecium of 2 carpels, the styles and stigmas at least 

 united; two carpels usually maturing. 



Anthers unappendaged at the base, not connected with the stigma : corolla-lobes 



sinistrorsely convolute. 

 Fruit drupaceous : shrubs or trees. 



Corolla salverform. relatively small ; lobes equilateral, 



shorter than the tube. 1. VALLESIA. 



Corolla funnelform. relatively large ; lobes inequilateral, 



longer than the tube. 2. CEEBEHA. 



Fruit a pair of follicles : herbs sometimes partially shrubby. 3. AMMOCALLIS. 

 Anthers appendaged at the base, converging around the stigma 

 and partially adherent to it: corolla mostly dextrorsely 

 convolute. 

 Corolla funnelform, the throat widened upward. 



Calyx-lobes relatively long and narrow : scale-like glands 



borne at the base of the calyx within. 4. UEECHITES. 



Calyx-lobes relatively broad and short : scale-like glands 



wanting. 5. RHABDADENIA. 



Corolla salverform, the throat narrowed upward. 6. ECHITES. 



1. VALLESIA E. & P. Shrubs. Leaves alternate: blades relatively 

 broad. Calyx-lobes short. Corolla salverform, the throat contracted at the 

 mouth. Drupe narrow. Seeds clavate. 



1. V. glabra Cav. Shrub: leaves remote; blades elliptic to oblong or oblong- 

 lanceolate, 4-7 cm. long: calyx-lobes deltoid to ovate-deltoid, less than 1 cm. 

 long: corolla white; tube 5-6 mm. long; lobes linear-oblong, 3-4 mm. long: 

 drupe 10-14 mm. long. Hammocks, L. keys. (Bah., Cuba, Ant.) 



2. CEBBEEA L. Shrubs or trees. Leaves alternate: blades relatively 

 narrow. Calyx-lobes long. Corolla funnelform, the throat not constricted at 

 the mouth. Drupe broad. Seeds angular. 



1. C. Thevetia L. Shrub : leaves approximate ; blades narrowly linear, 8-16 cm. 

 long: calyx-lobes lanceolate, 5-7 mm. long: corolla saffron-colored: tube 2-2.5 

 cm. long; lobes very broad, 3-4 cm. long: drupe depressed, 3-4 cm. broad. 



