116 ASCLEPIADACEAE. 



Pinelands and waste places, L. keys. Nat. of Trop. Am. — [E. K.] — {Bah., 

 Cuba, Ant.) — Trumpet-flower. Yellow-oleander. 



3. AMMOCALLIS Small. Erect herbs. Leaves opposite. Corolla-tube 

 with a contracted mouth. Follicles narrow. 



1. A. rosea (L.) Small. Stems 2-7 dm. tall: leaf-blades oblong to oblong- 

 cuneate, 4-8 cm. long: calyx-lobes linear-subulate, 3-4 mm. long: corolla white, 

 pink, or blue, with an eye; tube 27-34 mm. long: lobes abruptly pointed: 

 follicles 2-3 cm. long. — Pinelands, hammocks and waste places, U. keys, L. keys. 

 Nat. of the tropics. — [E. K.] — (Be?-., Bah., Cuba, Ant.) — Periwinkle. 



Z ' 4. URECHITES Muell. Arg. Vines. Leaves opposite. Calyx-lobes rela- 

 tively long and narrow. Corolla-tube abruptly dilated into the campanulate 

 throat. 



/ 1. XT. lutea (L.) Britton. Stems 3-30 dm. long, reclining or twining: leaf- 

 blades oval, ovate, or suborbicular, 2.5-5 cm. long: calyx-lobes lanceolate, 8-11 

 mm. long: corolla yellow, the campanulate throat over 2 cm. long: anthers 

 with linear-filiform appendages at the apex; follicles 12-15 cm. long. [17. 

 Andrewsii (Chapm.) Small.] — Pinelands. — F. K. {Bah., Cuba, Ant.) 



5. RHABDADENIA Muell. Arg. Vines, sometimes nearly erect. Leaves 

 opposite. Calyx-lobes relatively broad and short. Corolla-tube gradually 

 dilated into the funnelforni throat. 



Corolla yellow ; limb 2.5-3 cm. wide : erect herb, the branches pubescent. 



1. R. corallicola. 

 Corolla white ; limb 4.5-5 cm. wide : twining vine, the branches 



glabrous. 2. R. Mflora. 



4-^1 1. R. corallicola Small. Stems 3-11 dm. long: leaf -blades oblong or nearly so, 

 1-3 cm. long, more or less revolute: calyx-lobes deltoid-ovate, 2-2.5 mm. long: 

 corolla 2.5-3 cm. long; lobes 1-1.5 cm. wide: follicles 8-11 cm. long. — Pine- 

 lands, L. keys. — [E. K.] — Fragmentary specimens apparently of a related 

 species, B. Sagraei, of the Bahamas and Cuba, were collected on "Pine Key" 

 many years ago by Dr. Blodgett. It differs from E. corallicala in the twining 

 stem, the broader calyx-lobes, the shorter free portions of the filaments, and 

 the stout-beaked seeds. 



2. R. biflora (Jacq.) Muell. Arg. Stems greatly elongate: leaf -blades oblong 

 or oblong-lanceolate, 4-9 cm. long, apiculate: calyx-lobes oblong or nearly so, 

 4-5 mm. long: corolla 5-6 cm. long; lobes 2.5-3 em. wide: follicles 12-15 cm. 

 long. — Coastal hammocks, L. keys. — [E. K.] — {Bah., Cuba, Ant.) 



?>! 6. ECHITES P. Br. Vines. Leaves opposite. Flowers relatively large. 

 Calyx with glands within. Corolla salverform, the throat narrowed to the 

 mouth. 



1. E. Echites (L.) Britton. Stems widely twining: leaf -blades ovate to oval, 

 4-9 cm. long: calyx-lobes triangular, 2.5-3.5 mm. long: corolla white or green- 

 ish-white; tube, 5-6 cm. long; lobes 1.5-2.5 cm. long: follicles 15-20 cm. long. 

 ■ — Pinelands, U. keys, L. keys.— [E. K.] — {Bah., Cuba, A7it.) 



il^l Family 2. ASCLEPIADACEAE. Milkweed Family. 



Perennial herbaceous or woody plants, with usually umbel-like cymes. 

 Androeeium of usually 5 stamens, with the anthers more adherent to the 

 stigma than in Apocynaceae, the filament-appendages forming a crown. 

 Gynoecium of 2 carpels with the stigmas united; only one carpel usually 

 maturing. 



