PLANTAGINACEAE. 267 



1. BIGNONIA [Touru.] L. Vines. Leaf-blades unequally pinnate: leaf- 

 lets with toothed blades. Flowers clustered. Calyx tubular-campanulate, 

 nearly equally 5-lobed. Corolla tubular-funnelform. Capsule stout, fusiform. 

 Seeds nienibrauous-winged. 



1. B. radicans L. Stout vine: leaves many, 2-2.5 dm. long; leaflets 7-11, 

 the blades oval, ovate, or elliptic, 2-6 cm. long, coarsely serrate: calyx 14-18 

 mm. long; lobes triangular to triangular-ovate: corolla red or orange, 5-9 cm. 

 long: capsules fusiform, 10-18 cm. long. — S. On the Octoraro Creek. — 

 Schists. — Sum. — Trumpet-flower. Trumpet-creeper. 



2. CATAIiPA L. Shrubs or trees, with scaly bark. Leaves deciduous: 

 blades broad, membranous. Flowers paniculate. Calyx 2-lobed. Corolla cam- 

 panulate, 2 -lipped, the tube abruptly expanded into the throat. Capsule slender, 

 elongate. Seeds fimbriate-winged. — Catalpa. 



1. C. Catalpa (L.) Karst. Tree becoming 20 m. tall: leaf -blades ovate, 1-3 

 dm. long: calyx 8-12 mm. long; lobes abruptly pointed: corolla 2.5-3.5 cm. 

 long; throat eampanulate: capsules 1.5-4 dm. long. — Occasional, on road- 

 sides and in thickets. Nat. of the West and South. — Sum. — Bean-tree. 

 Cigar-tree. Indian cigar-tree. 



Family 15. MARTYNIACEAE. Unicorn-plant Family. 



Annual or perennial, stocky herbs, with stout weak stems. Leaves 

 opposite or rarely alternate : blades undulate or lobed. Flowers perfect, 

 irregular, in racemes. Calyx of mostly 5 well-united sepals, oblique, the 

 lobes short. Corolla of 5 partly unitecl petals : tube often decurved : limb 

 5-lobed, oblique. Androecium of 4 didynamous stamens (or the posterior 

 pair mere staminodia). Gynoeeium 2-carpellary. Ovary 1-eelled^ the 

 placentae parietal. 



1. MARTYNIA L. Annual or perennial, very stout, herbs with clammy 

 pubescence. Leaf-blades broad. Corolla declined, the limb oblique. Capsule 

 2-valved, the body crested, terminating in a curved or hooked beak. 



1. M. louisiana Mill. Annual, densely viscid-pubescent: leaf -blades sinuate, 

 0.5-3 dm. wide, petioled: flowers not fragrant: calyx-lobes ovate, obtuse: 

 corolla-lobes undulate: capsule stout, 8-15 cm. long, curved, separating into 

 2 elastically spreading valves, the beak longer than the body. — Occasional, 

 in waste places and about gardens. — Nat. of the Mississippi valley. — Sum. — 

 Unicorn-plant. Eam 's-horn. Proboscis-flower. 



Order PL ANT AGIN ALES. 



Annual or perennial herbs, or partially woody plants. Leaves wholly 

 or mainly basal, or crowded on a simple or branched caudex : blades 

 typically 1-several-ribbed. Flowers jjerfeet, monoecious or dioecious, 

 spi.eate. Calyx of 4 (3-5), partly united sepals. Corolla of 4 (3-5), 

 partly united scarious and veinless petals. Androecium of 4 or 2 stamens, 

 (or of 1 stamen). Gynoeeium typically 2-carpellary. Ovaiy superior. 

 Fruit capsular, usually a pyxis. 



Family 1. PLANTAGINACEAE. Plantain Family. 



Herbs. Leaf-blades typically 1-several-ribbed. Calyx-lobes, and 

 corolla-lobes, 4. Style and stigma elongate. 



