BIGNONIACEAE 1095 



1. Stenolobium st^ns (L. ) D. Don. A branching plant 3-14 dm. tall, with erect 

 stem, the foliage glabrous or minutely pubescent. Leaves pinnate, 1-2 dm. long : leaflets 

 7-9; blades lanceolate, narrowly elliptic or nearly linear, 4-10 cm. long, acuminate, sharply 

 serrate, sessile or nearly so : racemes rather many-flowered : pedicels variable, 1-10 mm. 

 long: calyx tubular-campanulate, 3-5 mm. high ; lobes often triangular, acuminate, much 

 shorter than the tube : corolla yellow, funnelform, 3.5-4.5 cm. long ; limb 4-5 cm. broad, 

 the lobes undulate : capsules linear, 10-20 cin. long, acute. [Tecoyna stuns (L. ) Juss.] 



In sandy soil, Florida and southern Texas to Mexico. Also in tropical Aruerica. 



3. CAMPSIS Lour. 



Vines. Leaves mainly opposite : blades unequally pinnate, the leaflets with toothed 

 blades. Flowers in clusters or panicles. Calyx tubular-campanulate : lobes 5, nearly 

 equal. Corolla tubular-funnelform. Stamens included. Ovary with numerous ovules- 

 borne in several rows in each cavity. Capsule narrow, with firm-leathery concave valves. 

 Seeds winged. Trumpet-flower. Trumpet-creeper. 



1. Campsis radicans ( L. ) Seem. A bushy vine climbing by aerial rootlets, the foliage 

 softly pubescent to glal)rate, the stems several m. long. Leaves pinnate : leaflets 7-11 ; 

 blades oval, ovate or elliptic, 2-6 cm. long, acute or usually acuminate, coarsely serrate, 

 gradually narrowed, short-petioluled : corymbs few-flowered: pedicels stout, 0.5-2 cm. 

 long : calyx tubular-campanulate, 14-18 mm. long ; lobes triangular or triangular-ovate, 

 much shorter than the tube : corolla red and orange, or yellow within, tubular-funnel- 

 form, 5-9 cm. long ; limb 3-5 cm. broad, oblique, the lobes suborbicular or reniform : cap- 

 sules spindle-shaped, 1-1.8 cm. long, acute. [Tecoma i-ad leans (L. ) DC] 



In woods, swamps and thickets, Pennsylvania to Missouri, Florida and Texas. 



4. CATALPA L. 



Shrubs or trees, with a watery sap, scaly bark and soft wood. Leaves opposite, 

 whorled or alternate, deciduous, without stipules : blades membranous. Flowers large and 

 showy, white or yellow, in terminal panicles or corymbs. Calyx closed, obovoid and apic- 

 ulate when young, later splitting into two broad concave lobes. Corolla oblique, strongly 

 blotched or spotted, its limb bilabiate, the upper lip 2-lobed, the lower 3-lobed. Stamens 

 2 or rarely 4, adnate to the base of the corolla, accompanied by several minute or rudimen- 

 tary staminodia, included or slightly exserted : filaments filiform, flattened : anthers introrse, 

 the sacs divergent, brought near the stigma by a bend in the filaments. Ovary 2-celled, 

 sessile on a thick disk : style filiform : stigmas 2. Ovules numerous, inserted in many rows 

 on the central placenta, horizontal, anatropous. Capsule much elongated, nearly 

 terete, tapering at both ends, persistent, at length loculicidally 2-valved. Seeds nu- 

 mei'ous, in 2-4 ranks, flattened, much broader than long witli a membranous testa which 

 is constricted at either end of the seed and produced into long fimbriate wings at the 

 sides. Indian Bean. Cigar-tree. 



Panicles many-flowered, crowded : corolla with a limb 4-5 X 5-6 cm. 1. C. Cntalpa. 



Panicles few-flowered, lax : corolla with a limb 6-7 X 7-8 cm. 2. C. speciosa'. 



1. Catalpa Catalpa ( L. ) Karst. A tree rarely 20 m. tall, with wide spreading 

 branches. Leaf-blades ovate, 1-3 dm. long, acuminate, more or less densely tomentose be- 

 neath, undulate, truncate or subcordate at the base ; petioles usually shorter than the 

 blades: panicles many-flowered: calyx glabrous or nearly so, 8-12 mm. long; lobes 

 abruptly pointed : corolla white ; tube campanulate, with 2 rows of yellow blotches within ; 

 limb 4-5 X 5-6 cm. the 3 lower lobes with purple spots : capsules linear, 1.5-4 dm. long, 

 terete. [(,'. bignonioides Wah.l 



In woods, mostly on river banks, New York to Florida and Texas. Native southward. Spring. 



2. Catalpa speciosa Warder. A tree sometimes 40 m. tall, with a thick scaly bark. 

 Leaf-blades ovate or oblong-ovate, 1-3 dm. long, acuminate, undulate or angulatelv lobed, 

 tomentose beneath, truncate or cordate at the base ; petioles nearly as long as the blades 

 or usually shorter : panicles few-flowered : pedicels 2-3 cm. long : calyx purple ; lobes 

 abruptly acuminate : corolla white ; tube conic-campanulate, with 2" rows of yellow 

 blotches within ; limb 6-7 X 7-8 cm. ; lobes of the lower lip blotched with purple : capsules 

 linear, 3.5-5 dm. long, terete. 



In damp soil or swamps, Illinois and Missouri to Alabama and Texas. Spring. 



