320 BIGNONIACEJE. (bIGNONIA FAMILY.) 



about as long as the lower lip. — Peat-bogs, or sandy swamps : common both 

 northward and southward. — Flowers close together, large. 



12. U. SUbul^ta, L. Stem capillary (3' -5' high); pedicels capillary; 

 lower lip of the corolla flat or with its margins recurved, equally 3-lobed, much 

 larger than the ovate upper one ; spur oblong, acute, straight, oppressed to the 

 lower lip, which it nearly equals in length. — Sandy swamps, pine-barrens of 

 New Jersey, Virginia, and southward, June. — Corolla 2" -4" broad. 



U. — Walter characterizes his U. purpurea as with "floribus parvis." 

 Elliott mentions that he once saw, near Savannah, a small terrestrial species, 

 like U. subulata, but purple-flowered, which he took for Walter's plant. Mr. J. 

 A. Paine, Jr. found in the pine barrens of New Jersey, in Sept., 1866, a few 

 minute specimens of this sort, with " faint pink-purple corolla, not larger than 

 a pin's head." It is left for further investigation. 



2. PINGUiCULA, L. Buttekwoet. 



Upper lip of the calyx 3-cleft, the lower 2-cleft. Corolla with an open hairy 

 or spotted palate. — Small and stemless perennials, growing on damp rocks, 

 with 1 -flowered scapes, and broad and entire leaves, all clustered at the root, 

 soft-fleshy, mostly greasy to the touch (whence the name, from pinguis, fat). 



1 • P. vulgaris, L. Leaves ovate or elliptical ; scape and calyx a little 

 pubescent ; lips of the violet corolla very unequal, the tube funnel-form ; spur 

 straightish. — Wet rocks, W. New York to Lake Superior, and northward. 

 July. (Eu.) 



Order 66. BIGNONlACEJE. (Bignonia Family.) 



Woody or rarely herbaceous plants, monopelalous, didynamous or dian- 

 drous, with the ovary commonly 2-celled by the meeting of the ttvo parietal 

 placentas or of a projection from them, many-seeded : the large seeds with a 

 flat embryo and no albumen. — Calyx 2-lipped, 5-oleft, or entire. Corolla 

 tubular or bell-shaped, 5-lobed, somewhat irregular or 2-lipped, deciduous; 

 the lower lob'e largest. Stamens inserted on the corolla ; the fifth or pos- 

 terior one, and sometimes the shorter pair also, sterile or rudimentary : 

 anthers of 2 diverging cells. Ovary free, bearing a long style, with a 

 2-lipped stigma. — Leaves compound or simple, opposite, rarely alternate. 

 Flowers large and showy. — Chiefly a tropical family : to which are ap- 

 pended several outlying groups, such as the Pedalinb^, represented 

 by Martynia, &c. 



* "Woody plants, with dry pods. Seeds transverse, very flat, winged ; the broad and leaf-lilie 



cotyledons notched at both ends, 



1. Bignonia. Pod flattened parallel with the partition. Leaves compound, tendril-bearing. 



2. Tecoma. Pod flattish contrary to the partition. Leaves compound, without tendrils. 



3. Catalpa. Pod as in No. 2. Fertile stamens only 2. Trees : leaves simple. 



* # Herbs. Fruit fleshy outside, woody within. Seeds attached by one end, not wmged ; the 



cotyledons thick and entire. 



4. Hartynla. Fertile stamens 2 or 4. Corolla bell-shaped, 5-lobed. Fruit beaked. 



