128 BIGNONIACEAE. 



LENTIBULARIACEAE Lindl. Bladderwort Family. 



Terrestrial or aquatic herbs with showy solitary or racemose scapose 

 flowers. Calyx 2-lipped, inferior. Corolla 2-lipped, irregular; upper lip 

 entire or 2-lobed; lower lip 3-lobed, with a prominent usually bearded 

 palate, spurred below. Stamens 2, included, inserted on the upper lip; 

 anthers 1-celled. Ovary 1-celled, with a free central placenta, becoming 

 a globular many-seeded capsule. 



UTR1CULARIA L. Aquatic or rooting' in the rand, stems ami dissected 

 foliage bladder bearing-. Scapes 1-few-flowered. Lips of the calyx nearly 

 equal, nearly entire. Upper lip of the corolla erect. Filaments incurved. 

 Stigma 2-lamellate. The species of this genus are often propagated by win- 

 ter buds. 



U. vulgaris L. Greater Bladderwort. Perennial; immersed stems 1-3 feet 

 long; leaves many, with many bladders, 2-3-pinnately divided; scapes naked 

 or with a few scales, 3-30-flowered, 5-12 inches high; corolla yellow, closed; 

 spur conical, shorter than the lower lip; pedicels recurved in fruit. River 

 sloughs and ponds; June-August; infrequent; Muscatine, Louisa, Linn, 

 Decatur, Fremont, Story, Winnebago, and Emmet counties; reported from 

 Fayette and Sioux counties. 



U. biflora Lam. Scape 2-5 inches high, 1-3-flowered; leaves at the base of 

 the scape root-like, capillary, bearing numerous bladders; corolla yellow, 

 spur oblong, obtuse, equaling the lower lip; pedicels erect. Ponds; reported 

 from Muscatine county. Associated with Bra.scn.ia peltuta Pursh. 



U. intermedia Hayne. Scape capillary, 1-4-flowered; leaves 2-ranked, 

 crowded, 4-5 times forked, divisions linear-subulate, rigid; bladders infre- 

 . quent, on leafless branches; corolla yellow, spur conical, acute. Shallow 

 water; June-August; reported from Emmet county. 



BIGNONIACEAE Prrs. Trumpet creeper Family. 

 Trees or shrubs, with opposite simple or pinnate exstipulate leaves, 

 and larye showy flowers. Calyx entire, 2-lipped or 5-cleft. Corolla tub- 

 ular or campanulate, 5-lobed, irregular or 2-lipped, deciduous Stamens 

 5, inserted on the -corolla, 1-3 sterile or rudimentary. Anthers 2-celled. 

 Ovary free; style lonjj; stigma 2-lobed. Capsule woody, 2-valved. with 

 many winged flat seeds. 



Tecoma. Leaves pinnate. 

 Catalpa. Leaves simple. 



TECOMA Juss. Calyx campanulate, 5-toothed. Corolla funnelform. limb 

 with 5 nearly equal lobes. Fertile stamens 4, didynamous, the 5th rudiment- 

 ary. Capsule flattish at right angles to the partition, 2-valved. 



T. radicans (L.) DC. Trumpet. Creeper. With us a glabrous woody vine: 

 leaflets 7-11, ovate, acuminate, coarsely serrate; corolla large, orange and 

 scarlet; stamens included. Waste places; July-September; becoming a fre- 

 quent escape; Muscatine, Louisa, and Lee counties 



CATALPA Scop. Calyx 2-parted. Corolla campanulate, 5-lobed, 2-lipped. 

 Fertile stamens 2, occasionally 4, rudimentary or sterile stamens 3 orl. 

 Capsule terete, long, 2-celled, opening at right angles to the valve. 



C. speciosa Warder. Catawba Tree. Ltirarr Indian Bean. Leaves large, long- 

 petioled, cordate, acuminate, sometimes angulately lobed, pubescent beneath; 

 corolla large, white, slightly spotted, tube obconical, limb slightly oblique. 



