226 JBIGNONIA FAHlLt. 



IT. bifl6ra. Chiefly S. : stems 4' - 6' long, bearing rootlet-like leaves and 

 many bladders, 1 - 3-flowered peduncles 2' - 4' high, and awl-shaped spur as 

 long as lower lip. 



* * * Simple and erect naked scape-like stem rooting in wet soil, with minute and 



fugacious grass-like leaves seldom seen : commonly no bladders : flower$ 

 ydlow. 

 IT. SUbul&ta, from N. Jersey S. in wet sand ; very slender, 3' - 5' high, 

 ■with several very small slender-pedicelled flowers, 



U. eornilta. In bogs N. & S. ; 6'- 15' high, bearing 2-4 large flowers 

 crowded together on short pedicels, or S. with 4-12 more scattered and smaller 

 flowers. 



2. PIN GITICULA, Butterwort. (Name from Latin, pinguis, fat. 

 Both names from the fatty or greasy-looking leaves, which in ours are more 

 or less clammy-pubescent.) 



« Corolla violet-purple ; the upper lip 2-lobed, lower 3-lobed. 



P. VUlg&,riS, is scarce on wet rocks along our northern borders ; scape 2' 

 high ; upper lip of corolla short ; spur straightish and slender : fl. summer. 



P. ptlQlila, in moist sand from Georgia S. & W., has rather large flower 

 on scape 2' -6' high, with blunt sac-like spur : fl. spring. 



P. el&.tior, borders of ponds from N. Carolina S., has scapes near 1° high, 

 and large corolla (1' wide) with blunt spur : fl. summer. 



* * Corolla yellow, more bell-shaped, less distinctly 2-lipped, the 5 lobes often cleft. 



P. l^tea. Wet pine barrens S. ; whole plant yellowish, with nodding 

 flower (1' or more wide) on scape 6'-]>2' high, in spring. 



73. BIGNONIACE^, BIGNONIA FAMILY. 



Woody plants, or a few herbs, with more or less bilabiate flowers, 

 diandrous or didynamous stamens (often with rudiments of the 

 wanting ones), 2-lipped stigma, free variously 1 - 4-celled ovary, 

 and fruit, usually a pod, containing many large mostly flat and 

 winged seeds, filled with the large embryo : no albumen. 



I. BIGNONIA FAMILY proper ; almost all woody plants, 

 with opposite leaves, 1-2-celled pods, and flat winged seeds. (Les- 

 sons, p. 135, fig. 316.) 



§ 1. Climbers, with compound leaves and i fertile stamens in two pairs. 

 * Barely woody or herbaceous ; ovary and pod one-celled with 2 parietal placental. 



1. ECCREMOCARPUS. Calyx 5-cleft, short. Corolla tubular, with 5 short and 



round recurved lobes. Pod short. Seeds winged all round. 



« * Woody-stemmed: ovary and pod 2-celled, but the placenta parietal : valves of pod 

 Jailing away from the partition : seeds with a broad thin wing. 



2. BIGNONIA. Calyx nearly truncate. Corolla tubular bell-sbaped, 6-lobed. 



Fed flattened parallel with the valves and partition. Climbing by leaf- 



3. TECOMA. Calyx 5-toothed. Corolla funnel-shaped, tubular, or bell-shaped, 



6-Iobed. i od flattish or flattened oontrarv to the partition, the edges of 

 which separate from the middle of the valves. Leaves in ours odd-pinnate. 

 The hardy species climb by rootlets. 



§ 2. Trees, witli simple leaves and 2 or rarely i fertile stamens. 

 i. CATALPA. Calyx deeply 2-lipped. Corolla inflated beU-shaped, the 5-lobed 

 border more or less 2-lipped and wavy. Pod very long and slender, hanging; 

 the partition contrary to the valves. Narrow wings of the seed lacerate- 

 fringed. (For corolla and stamens, see Lessons, p. 95, fig. 196.) 



