228 ‘BIGNONIACES. 
BIGNONIACEM. : 
Flowers hermaphrodite, irregular. Calyx tubular to bell- 
shaped, truncate-toothed or laterally split. Corolla elongate or 
rarely short and bell-shaped, 5-lobed, the lobes spreading, 0 
arranged in 2 lips, variously imbricate or rather induplicate-valvate 
in bud. Fertile stamens 2 or 4, or rarely also the 5 rudimentary 
one developed, in pairs, inserted in the tube; anthers 2-celled, the 
cells divaricate or rarely parallel, dehiscing longitudinally. Ovary 
usually 2-celled, with 2 distinct placentas in each cell attached to 
the dissepiments, and either contiguous or separated by a consider- 
able interval, or the dissepiment discontinued between the placentas 
and the ovary appearing 1-celled; ovules several or numerous to 
each placenta; style filiform, with 2 short stigmatic lobes. F i 
a capsule, often very elongated, opening loculicidally or septifragally 
in 2 valves, leaving the dissepiment free. Seeds transverse, y 
flattened, winged or wingless. Albumen none. Embryo straight 
or rarely curved, with flat or fleshy cotyledons, the radicle next the 
hilum.—Trees or shrubs, often climbing, very rarely herbs, wi 
* 
opposite or rarely scattered, compound or rarely simple leaves, th 
leaflets usually opposite. Stipules none. Flowers often showy, 
solitary and axillary, or more usually in racemes or panicles. 
Besides some medicinal properties possessed chiefly by American 
species, little is known of other uses of the members of this family, 
which chiefly recommend themselves on account of their large and 
often gay-coloured flowers. However, the timber of many ¥ 
valuable, and some of the hardest woods of Brazil come from 
bignoniaceous trees. 
* Seeds in a single row along the edges of the septum. 
continuous, flat. 
Calyx more or less distinctly 5-ribbed and 5-toothed, marcescent- : 
persistent. Leaves unpaired pinnate with serrate-cut leaflets . Stenolobinm. 
* O O Septum more or less corky-medullary, jointed. 
alyx not ribbed, marcescent-persistent ; seeds spuriously 2-celled ; 
leaves pinnate : = : ‘ ‘ a : . Stereospermum: 
* *& Seedsin 2 or more imbricated rows along the edges of | 
X Leaves ternately bipinnate or decompound. 
Calyx urceolate, obsoletely 5-toothed ; filaments i ested at the con- 
striction of the tube ; anther-cells divaricate . : . : 
Calyx spathaceous, slit to about its middle; filaments adnate up to 
the middle of the corolla; anther-cells almost parallel . _ Mu ayodendron. 
x XxX ves unpaired-pinnate. : 
Calyx spathaceous, slit to the base ; filaments inserted at the con- oe 
stri e; anther-cells divaricate . .) 5 Spathetee. 
OO Calyx persistent or m ent-persi a 
Calyx 2-8:lobed, without ribs onpeal Brogme 
. without ribs ; capsule rather fla i » er 
Calyx -winged, S-toothed ; eapeule fat, winged 2 vines | Payee 
Radermachers- 
