BIGNONIACEAE. 135 



Family 13. BIG-NONIACEAE. Trumpet-creeper Family. 



Shrubs, trees, woody vines, or rarely herbs. Leaves o^Dposite, or 

 rarely alternate or whorled, often tendril-bearing: blades simple or pin- 

 nately compound. Flowers perfect, usually showy. Calyx of usually 2 

 more or less united sepals. Corolla 5-lobed, irregular, or 2-lipped. An- 

 droecium of 5 stamens, with 1 or 3 of them reduced to staminodia, or of 4 

 didynamous stamens. Anthers with mostly divaricate sacs. Gynoecium 

 of 2 united carpels. Ovary 1-eelled or 2-celled by the meeting of the 

 placentae. Fruit a capsule. Seeds winged or appendaged. 



Leaf-blades compound, the leaflets with toothed blades : capsules long and slender, 



dehiscent. 1. Tecojia. 



Leaf-blades simple, entire : capsules short and stout, indehlscent. 

 Leaves clustered on spurs ; lilades of a spatulate or obliinoeo- 



late type: fruit rounded at the apex, with fleshy placentae. 2. Cbescentia. 



Leaves alternate ; blades of a broad type : fruit umbonate at 



the apex, with dry placentae. 3. Exallagma. 



1. TECOMA Juss. Shrubs or erect partially herbaceous plants. Leaf- 

 blades unequally pinnate. Flowers clustered. Calyx tubular-campanulate, 

 nearly equally 5-lobed. Corolla with the tube gradually enlarged into the 

 funnelform throat. Seeds membranous-winged. 



1. T. stans (L.) Juss. Plants 1-8 m. tall: leaves 1-2.5 dm. long; leaflets 

 7-13, the blades lanceolate to elliptic, or narrower, 4-10 cm. long, coarsely 

 serrate: calyx 3-5 mm. long; lobes often triangular: corolla yellow, 3.5-4.5 

 cm. long: capsules 10-20 cm. long. — Hammocks and waste places. Key West. — ■ 

 [E. K.] — (Bah., Cuba, Ant.) — Yellow trumpet-flower. Yellow-elder. 



2. CKESCENTIA L. Trees with scaly bark. Leaves clustered on spurs: 

 blades of a spathulate or oblanceolate type. Flowers in clusters or solitary, on 

 the spurs, pedicelled. Calyx 2-lobed, leathery. Corolla mainly yellowish-green 

 and magenta-streaked, with a fold between the tube and the campanulate 

 throat: lobes 5, unequal. Anthers mostly included. Fruit relatively large, 

 rounded at the apex, with a thick, hard pericarp: placentae fleshy. Seeds flat, 

 obcordate. 



1. C. Cujete L. Tree becoming 12 m. tall: leaf -blades 8-15 cm. long, abruptly 

 acuminate or obtuse, narrow-based: calyx 2-3 cm. long: corolla yellowish-green 

 and magenta-streaked; lobes undulate: capsules subglobose, oval, or oblong, 

 15-30 cm. long. — Hammocks and roadsides, L. keys. — (Bali., Cuba, Ant.) — 

 Calabash-tree. 



3. ENALLAGMA Baill. Trees with scaly bark. Leaves alternate ; blades 

 of an oblong, oval, or obovate type. Flowers solitary or clustered at the ends 

 of the branchlets, long-pedicelled. Calyx 2-lobed, leathery. Corolla mainly 

 whitish, purplish or greenish-yellow, with a fold between the tube and the 

 campanulate throat: lobes 5, unequal. Anthers mostly exserted. Fruit rela- 

 tively small, umbonate at the apex, with a thin brittle pericarp : placentae dry, 

 pithy. Seeds convex, notched at both ends. 



1. E. latifolia (Mill.) Small. Tree becoming 8 m. tall: leaf-blades 7-15 cm. 

 long, abruptly pointed, broad-based: calyx 2.5-4 cm. long: corolla 5-6 cm. long, 

 pale-purple to yellowish-white; lobes toothed: capsules oblong or oval, 5-11.5 

 cm. long. — Hammocks, U. keys. — [E. K.] — (Cuba, Ant.) — Black-calabash. 



