576 BIGONIACEAE 
Famity VII.—BIGONIACEAE. Trumpet VINE FamILy 
Woody plants; vines, shrubs, trees with, in our naturalized 
species, opposite leaves and large showy trumpet-shaped flowers in 
large clusters. Calyx 2-lipped, 5-toothed or not toothed. Corolla 
of a long tube expanding toward the throat and with a 5-lobed, 
somewhat 2-lipped border. Stamens, inserted in the corolla tube, 
4 or 2 fertile. Ovary bearing a long style. 
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1, TECOMA, Juss. 
Climbing vines, with compound leaves and aerial rootlets. Calyx 
5-toothed, bell-shaped; corolla tube long, lobes 5, nearly equal. Stamens 
4, unequal. Capsule 2-celled. 
T. radicans, DC. (Fig. 5, pl. 148.) Trumpet Firower. The ordinary 
Trumpet Flower of lawns which in places has been naturalized. 
2. CATALPA, Scop. 
Trees, with large, opposite, ovate leaves and large clusters of white or 
mottled flowers. Calyx deeply 2-lipped. Corolla decidedly 2-lipped, in 
general form trumpet-shaped, the 5 lobes quite unequal. Fertile stamens 
2. Fruit capsule a long and slender pod; seeds winged on each side, the 
wings fringed. 
C. speciosa, Warder. CatTarpa. Tree, with thick flaky bark. Leaves 
large, egg-shaped, heart-shaped at base. Flowers numerous, white; corolla 
1 to 14 in. long. Pod 4 or 5 in. long. Escaped from cultivation in some 
localities. June-July. 
Famity VIII—ACANTHACEAE. Acanruus FAMILY 
Chiefly herbs with opposite leaves and without stipules, and with 
rather large flowers, which are usually much bracted, more or less 
2-lipped. Stamens 2 or 4, inserted in the tube of the 5-lobed co- 
rolla. 
Lobes of the corolla sub-equal, star-shaped . . . . Ruellia 
Corolla conspicuously 2-lipped . . . . . . Dianthera 
1. RUELLIA, L. 
Perennials. Leaves entire, opposite. Flowers large and showy, blue or 
purple, white or yellow, in loose clusters. Calyx 5-toothed. Corolla more 
or less trumpet-form, somewhat 2-lipped, the 5 lobes radiating. Sta- 
mens 4, unequal, extending beyond fhe throat of the corolla. Fruit an 
oblong capsule. 
1. R. ciliosa, Pursh. (Fig. 7, pl. 148.) Harry Ruerria. Stem 1 to 
23 ft. high, erect. Whole plant very hairy with soft whitish hairs. Leaves 
