1094 BIGNONIACEA E 
1. Leptamnium Virginianum (L.) Raf. Foliage purple or yellowish brown, some- 
times puberulent. Stems from a short base, solitary or tufted, erect, branched, 1-4 dm. tall, 
sparingly scaly especially at the base : racemes spike-like: pedicels 1-2 mm. long, enlarged 
upward: calyx often variegated ; lobes triangular or ovate-triangular, about as long as the 
tube, acute: cleistogamous flowers 2-3 mm. long: corolla of the complete flowers ascend- 
ing, 10-13 mm. long; tube curved, the upper lip notched, its lobes obtuse, the lower lip 3- 
lobed, its lobes acute, somewhat plaited : capsules 3-5 mm. broad, broader than high. 
In beech woods, New Brunswick to Ontario, Michigan, Florida and Louisiana. Summer and fall. 
FAMILY 17. BIGNONIACEAE Pers. TRUMPET-CREEPER FAMILY. 
Trees, twining or climbing shrubby plants, or rarely herbs. Leaves oppo- 
site, rarely alternate or whorled, often developing tendrils from the petioles, 
without stipules: blades simple or pinnately-compound.  Inflorescence com- 
monly spicate or racemose. Flowers showy, sometimes solitary, perfect, irregu- 
lar. Calyx free, of usually 2 more or less united sepals. Corolla irregular, 5- 
lobed or 2-lipped, hypogynous, deciduous : tube varying from campanulate to 
tubular. Androecium of 5 stamens, 1 or 3 reduced to sterile filaments, or 4 and 
then didynamous. Filaments filiform, adnate to the corolla-tube, mostly in- 
cluded. Anther-sacs commonly divaricate. Gynoecium 2-carpellary. Ovary 1- 
celled with two parietal placentae or mainly 2-celled by a false partition between 
the placentae, surrounded by a fleshy disk: styles united: stigmas mostly 2. Ovules 
numerous, horizontal or rarely pendulous or ascending, anatropous. Fruit a 
leathery or woody capsule, often flattened and with two cavities and two valves. 
Seeds numerous, winged, with a membranous or leathery testa. Endosperm 
wanting. Embryo with cordate cotyledons notched at the apex. 
Leaf-blades compound: vines or rarely herbaceous plants. Sus: 
Calyx with an undulate ah a : capsule flattened parallel with its partition. 1. BIGNONIA. 
Calyx with 5 lobes: capsule fiattened at right angles to its partition. 
Upright mainly herbaceous plants : ovules in 2 rows in each cavity oftheovary. 2. STENOLOBIUM. 
Vines with twining stems: ovules in several rows in each cavity of the ovary. 3. CAMPSIS. 
Leaf-blades simple: shrubs or trees. 
Anther-bearing stamens 2: leaves opposite. 4. CATALPA. 
Anther-bearing stamens 4: leaves sonas or scattered. 
Ovary 2-celled: fruit loculicidally valved : leaf-blades linear or nearly so. 5. CHILOPSIS. 
Ovary 1-celled at least above: fruit indehiscent: Jeaf-blades relatively broad. 6. CRESCENTIA. 
1. BIGNONIA L. 
High-climbing or shrubby vines. Leaves opposite : blades 2-3-foliolate, or 1-foliolate, 
(the terminal one often represented by a tendril), entire or rarely toothed. Flowers in 
axillary cymes or in terminal panicles. Calyx campanulate or cup-shaped, nearly trun- 
cate or undulate. Corolla usually showy : limb spreading, more or less distinctly 2-lipped ; 
lobes much shorter than the tube. Stamens 4 (fertile), didynamous: filaments adnate 
to the base of the corolla: anthers glabrous. Ovary short-stalked or nearly sessile, 
2-celled. Ovules in 1 row on each placenta or more or less distinctly in 2 or 3 TOWS. Cap- 
sule narrow, elongated, flattened parallel with its partition. Seeds flattened, winged. 
1. Bignonia crucigera L. An evergreen high-climbing vine, with glabrate foliage 
and much-branched stems. Leaves compound : petioles 1-2 cm. long, prolonged uae 
forking tendrils: leaflets 2, oblong-oval or oblong-lanceolate, 5-15 cm. long, slightly acu- 
minate but obtuse or mucronate, cordate or auricled at the base: flowers in axillary clus- 
ters: pedicels 2-4 cm. long, stout: calyx campanulate, 5-8 mm. long, lobes very on 
corolla red-orange without, yellow within, 4-5 em. long; lobes rounded or ovate, sai 
as long as the tube: stamens included : filaments villous at the base: capsules linear, 
17 em. long, flattened. [B. capreolata L.] 
In thickets, Virginia to Illinois, Florida and Louisiana. Spring. TRUMPET-FLOWER. 
2. STENOLOBIUM D. Don. 
Upright mainly herbaceous plants. Leaves usually opposite : blades unequally bus 
nate, the leaflets with toothed blades. Flowers in terminal racemes or panicles. Ca 1: 
tubular-campanulate : lobes 5, nearly equal. Corolla funnelform. Stamens include fi 
anthers often pubescent, with foliaceous connectives. Ovary with many ovules borne 
2 rows in each cavity. Capsule slender, with leathery boat-like valves. Seeds winged. 
