182 GAMOPETALOUS EXOGEXS 



1. A. llllifluruni, Torr. 4" Gr. Pale tawny; pubescent; stem 

 very short, rhizoma-like, scaly; scapes 1 to 3, slender, naked. 

 Orobanche uniflora. L. $ FL Cestr. ed. 2. p. 377. 

 ONE-FLOWERED APHYLLON. Naked Broom-rape. 



Perennial? Stem half an inch to an inch and half long, often branched, or sev- 

 eral from the same root, covered -with a few oblong scales. Peduncles scape-like, 2 

 to 4 or 5 inches high, mostly 2 or 3 on each short stem. Corolla yellowish white, 

 veined, tinged with purple; palate with 2 yellow ridges, and corresponding grooves 

 beneath. 

 Hob. Hilly woodlands: frequent. Fl. May. Fr. July. 



ORDER LXI. BIGNONIA^CEAE. 



Woody, or sometimes herbaceous plants; haves mostly opposite; stipules none; 

 flowers didynamous (sometimes diandrous, by abortion) ; calyx 2-lipped, or 5-cleft; 

 corolla subcampanulate, unequally 5-lobed, deciduous; ovary free, 2-celled by the 

 projection of the placentae; capsule coriaceous, or woody, 2-valved, many-seeded; 

 seeds large, flat, often winged, destitute of albumen. 



SUBORDER I. BIGNONIE V AE. 



Capsule coriaceous, dehiscent; seeds winged. Trees, or woody vims. 



262. CATAI/PA, Scop. 



[A name said to have been derived from our Southern Indians.] 

 Calyx deeply 2-lipped. Corolla somewhat ventricose, sub-bilabiate. 

 Stamens mostly 2 perfect, and 3 abortive. Capsule very long and 

 slender, nearly cylindrical, 2-celled, the partition contrary to the 

 valves. Seeds in a single row in each cell, winged and fringed at 

 each end. Trees : flowers in terminal panicles. 

 1. C. bignonioldes, Walt. Leaves cordate, acuminate, entire, petio- 

 late; panicles pyramidal. 



C. cordifolia. Duham. # Fl. Cestr. ed. 2. p. 363. 

 BIGNONIA-LIKE CATALPA. Catawba. Bean tree. 



Stem 15 to 25 feet high, with irregular spreading branches. Leaves 4 to 6 or 8 

 inches in length, and nearly as wide as long, opposite or ternate, pubescent be- 

 neath ; petioles 2 to 6 inches long. Panicles trichotomously branched, rather large ; 

 corolla whitish, tinged with violet-purple, the throat spotted with purple and yel- 

 low. Capsule 6 to 12 inches in length, and about half an inch in diameter, pendu- 

 lous and persistent. 

 Hob. Roadsides; about houses, &c.: not common. Fl. June. Fr. Octo. 



Obs.. This tree is showy and handsome, when in flower, and has 

 become naturalized in several localities ; though I think it is clearly 

 not indigenous, here, but was probably introduced from the South, 

 as an ornamental shade-tree. 



SUBORDER II. SESAME V AE. 



Capsule sometimes fleshy and finally woody, or of a drupaceous structure, imper- 

 fectly dehiscent, somewhat 4-celled; seeds not winged. Herbs; upper leaves often 

 alternate. 



263. MARTYIV'IA, /,. 



[Dedicated to John Martyn, Prof, of Botany at Cambridge, England.] 

 Calyx 5-cleft, with 2 or 3 bractlets at base. Corolla irregular, cam- 

 panulate, gibbous at base. Stamens mostly 4, didynamous. Cap- 



