APOCYNACEAE. 109 



Gynoecium of 2 united carpels, or rarely more : ovary 2-celled or rarely 4- 

 celled. Fruit capsular and 2-valved, or baccate or drupaceous. 



1. GELSEMIUM Juss. Evergreen vines. Flowers in axillary cymes, or 

 solitary. Calyx 5-lobed. Corolla funnelform, straight. Filaments with the 

 free portion much longer than the adnate portion. Stigmas 4. Capsule flat- 

 tened contrary to the septum, septicidal. Seeds winged. 



1. G-. sempervirens (L.) Ait. f. Stem and branches often tangled and matted: 

 leaf -blades lanceolate, oblong-lanceolate or ovate, 1.5-9 cm. long, entire: flower- 

 stalks scaly: calyx-lobes 3-4 mm. long: corolla deep-yellow, 3-4 cm. long: cap- 

 sules 1-1.5 cm. long, veiny: seed-body barely as long as the wing. YELLOW- 

 JESSAMINE. EVENING TRUMPET-FLOWER. 



Woods and thickets, n. Fla. and the upper pen. (Cont.) Spr. 



2. ADENOPLEA Eadlk. Shrubs or partially woody plants. Flowers in 

 lax or dense cymes borne in racemes or panicles. Calyx-lobes 4, shorter than 

 the tube. Corolla trumpet-shaped, curved. Filaments to below the middle of 

 the corolla-tube. Capsule thick, septicidal. 



1. A. Lindleyana (Fort.) Small. Stems diffusely branched, 1-2 m. tall, the 

 branches angled: leaf -blades ovate to lanceolate, 3-9 cm. long, entire, glabrous: 

 panicles 1-3 dm. long, often partially drooping: calyx about 2.5 mm. long: 

 corolla purplish, violet or reddish, 12-16 mm. long, the tube curved: capsules 

 4-5 mm. long. 



Waste places, roadsides, and about gardens, n. Fla. and the upper pen. (Cont., 

 W. I.) Sum.-fall. 



Order ASCLEPIADALES. 



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

 or opposite: blades entire. Inflorescence cymose, sometimes umbellate. 

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

 united petals. Androecium of 5 distinct or monadelphous stamens. Pollen 

 granular, or in waxy masses. Gynoecium of usually 2 carpels sometimes 

 only united at the apex. Stigma terminal. Fruit a pair of follicles, or 

 drupaceous. 



FAMILY 1. APOCYNACEAE. DOGBANE FAMILY. 

 Perennial herbs, vines, shrubs or trees, mostly with a milky acrid 

 juice. Leaf -blades simple. Androecium of 5 stamens with the anthers 

 converging around the stigma or partly adhering to it. Filaments partially 

 adnate to the corolla-tube Pollen-grains simple. Gynoecium of 2 distinct 

 carpels or 2 united carpels. Styles united. Stigmas simple. Fruit usually 

 of 2 follicles or drupes. Seed often appendaged. 



Anthers unappendaged at the base, not connected with the stigma : fruit drupaceous. 

 Corolla salverform : drupe elongate. 1. VALLESIA. 



Corolla funnelform : drupe depressed. 2. CERBERA. 



Anthers appendaged at the base, partly adherent to the stigma : fruit 



follicular. 3. NERIUM. 



1. VALLESIA R. & P. Scrubs. 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 3 m. tall or less, the branches sometimes elongate 

 and vine-like: leaves remote; blades elliptic to oblong or oblong-lanceolate, 



