222 KEY AND FLORA 



91. BIGNONIACE^. Bignonia Family 



Trees or shrubs, often twining or climbing, rarely herbs. 

 Leaves usually opposite, without stipules. Flowers showy, 

 zygomorphic. Corolla tubular, with a widened throat and a 

 5-lobed limb. Stamens usually 2 long and 2 short, or only 2. 

 Ovary free from the calyx, 2-celled or rarely 1-celled, with 

 many ovules. Fruit a capsule ; seeds large, winged. 



I. TECOMA Juss. 



Woody vines, climbing by aerial rootlets. Leaves compound, 

 odd-pinnate. Flowers large, in terminal clusters. Calyx bell- 

 shaped, unequally 5-toothed. Corolla funnelform, enlarged 

 above the calyx, 5-lobed, slightly 2-lipped. Stamens 4, 2 long 

 and 2 short. Capsule slender, spindle-shaped, slightly com- 

 pressed contrary to the partition, 2-valved, dehiscent. Seeds 

 winged.* 



1. T. radicans Juss. Trumpet Flower, Trumpet Creeper. 

 Stems climbing high by numerous rootlets ; bark shreddy. Leaves 

 deciduous, petioled ; leaflets 9-11, ovate to ovate-lanceolate, ser- 

 rate, short -stalked, smooth or slightly downy. Flowers in short, 

 terminal racemes or corymbs. Calyx tubular, | in. long. Corolla 2-3 

 in. long, scarlet without, yellow within, the lobes spreading. Capsule 

 5-6 in. long, curved, often persistent through the winter. Seeds 

 broadly winged. On borders of fields and in woods S.; often cul- 

 tivated.* 



II. CATALPA Scop. 



Small trees. Leaves large, opposite, simple, petioled, decid- 

 uous. Flowers large and showy, in terminal panicles. Calyx 

 irregularly 2-lipped. Corolla tubular-bell-shaped, oblique, 5- 

 lobed, 2-lipped. Fertile stamens 2, sterile stamens 3, short. 

 Fruit a linear, 2-valved, many-seeded capsule. Seeds winged.* 



1. C. bignonioides AValt. Catalpa. A small tree with thin, 

 rough gray Ijurk, and light, soft but exceedingly durable wood. 

 Leaves loiig-petioled, heart-shaped, entire or palmately 3-lobed, 

 taper-pointed at the apex, palmately veined, downy. Branches of 

 the panicle in threes; flowers large, 1-li in. long, white, variegated 

 with yellow and purple. Corolla lobes undulate or crisped. Capsule 



