292 BIGNONIACEJE. (BIGNONIA FAMILY.) 
usually only 2 of them anther-bearing. Pod very long and slen¬ 
der, nearly cylindrical, 2-celled; the partition contrary to the 
valves. Seeds in a single row in each cell, broadly winged on 
each side, the wings cut into a fringe. (The aboriginal name.) 
1. C. bignoilioides, Walt. Leaves heart-shaped, pointed, 
downy beneath ; flowers in open compound panicles.— Cultivated in 
the Northern States: a well-known ornamental tree, with large leaves, 
and showy flowers, which are white, slightly tinged with violet and 
dotted with purple and yellow in the throat, opening in July. Pods 
hanging till the next spring, often 1° long. 
3. MABTYNIA, L. Unicorn-plant. 
Calyx 5-cleft. Corolla gibbous, bell-shaped, 5-lobed, irregular. 
Fertile stamens 4, or only 2. Pod fleshy, and with the inner part 
soon woody, terminated by a long beak, which at length splits into 
2 hooked horns, the pod opening at the apex between the beaks, 
imperfectly 5-celled, owing to the divergence of the two plates of 
each of the two partitions or placentae which leave a space in the 
centre while by reaching and cohering with the walls of the fruit 
they form 4 other cells. Seeds several, wingless, with a thick 
and spongy roughened coat. — Low branching annuals, clammy- 
pubescent, exhaling a heavy odor: stems thickish : leaves simple, 
rounded. Flowers racemed, large. (Dedicated to Prof. Martyn, 
of Cambridge, a well-known botanist of the last century.) 
L M. proboscidea, Glox. Leaves heart-shaped, oblique, 
entire, or undulate, the upper alternate; the hooked horns much 
longer than the body of the fruit; the woody endocarp crested on one 
side. Escaped from gardens and becoming naturalized in some 
places; native in the Southwestern States. June-Sept.— Corolla 
dull white, tinged or spotted with yellow and purplish. 
Order 68. ACANTHACEiE. (Acanthus Family.) 
Chiefly herbs , with opposite simple leaves , didynamous or 
diandrous stamens , inserted on the tube of the more or less 
flipped corolla , the lobes of which are convolute in the 
bud : fruit a 2- celled and few-seeded pod : seeds anatro - 
P°us , without albumen , usually flat, supported by hooked 
projections of the placentce. — Calyx 5-cleft. Style thread- 
form : stigma simple or 2-cleft. Pod loculicidal. Flowers 
much bracted. 
