1096 MARTYNIACEAE 
5. CHILOPSIS D. Don. 
Shrubs or trees, with furrowed bark and dark-colored coarse-grained wood. Leaves 
opposite or alternate, deciduous, without stipules: blades narrow, thin, entire, often 3- 
nerved, sometimes glutinous. Flowers perfect, showy, white, tinged with purple, in 
terminal puberulent racemes or thyrsoid panicles, with narrow bracts. Calyx membra- 
nous, splitting into 2 concave lobes. Corolla oblique, enlarged at the throat and blotched 
with yellow, inconspicuously bilabiate, the upper lip 2-lobed, the lower 3-lobed, the mar- 
gins undulate, the central lobe larger than the rest. Stamens 4, adnate together with a 
staminodium to the base of the corolla-tube, mostly included : filaments filiform, the 2 pos- 
terior much shorter than the anterior pair: anther-sacs divergent. Ovary 2-celled, sessile 
on the nearly obsolete annular disk: style filiform: stigmas 2. Ovules numerous, hori- 
zontally borne in many rows in the central placenta, anatropous. Capsule narrow, elon- 
gated, tapering to both sides, loculicidally 2-valved. Seeds numerous, in 2 ranks, flattened, 
notched at both ends, with a membranous testa which is produced into lateral fimbriate 
wings. Endosperm wanting. Embryo with cotyledons which are much broader than long. 
1. Chilopsis linearis ( Cav.) DC. A straggling shrub or small tree, sometimes 9 m. 
tall. Leaves numerous; blades linear, 10-20 cm. long, acuminate, rather prominently 
nerved, gradually narrowed to the base, or short-petioled : racemes 6-10 em. long, villous: 
calyx short-pedicelled ; lobes acute, villous, several-toothed at the apex: corolla white, 
with a shading of purple, funnelform ; lobes suborbicular, about 1 cm. in diameter, crisped : 
capsules narrowly linear, 10-20 em. long: seeds nearly 1.5 cm. long, bearded at both ends. 
Along streams, Texas to southern California and Mexico. 
6. CRESCÉNTIA L. 
Glabrous trees, with scaly bark and stout terete or angled branchlets. Leaves alter- 
nate, without stipules: blades leathery or membranous, solitary or fascicled, entire. 
Flowers perfect, clustered or solitary at the ends of branchlets. Calyx leathery, at length 
split into 2 lobes, or 5-cleft, deciduous. Corolla pale-yellow, striped with purple, oblique, 
tubular-campanulate: tube constricted near both ends and swollen on the lower side: limb 
inconspicuously bilabiate, obscurely 5-lobed, the lobes laciniate-toothed. Stamens 4, adnate 
together with a posterior staminodium, to the lower part of the corolla-tube, slightly 
exserted or included : filaments filiform : anther-sacs divergent. Ovary 1-celled, sessile 
ona thick annular disk : style filiform: stigmas 2. Ovules numerous, borne on two 2-lobed 
parietal placentae, anatropous. Capsule short and stout, indehiscent. 
Leaf-blades spatulate or oblanceolate, usually thrice as long as broad : capsules over 12 em. one ti 
Leaf-blades oblong to oblong-obovate, about twice as long as broad : capsules less than 12 m Ly. 
1. Crescentia Cujéte L. An evergreen tree 5-10 m. tall, with glabrous foliage. 
Leaves clustered ; blades leathery, spatulate or oblanceolate, 8-15 cm. long, abruptly 
acuminate, gradually narrowed to short-winged petioles: pedicels longer or shorter than 
the peduncles : calyx glabrous, 2-2.5 cm. long; lobes obtuse, little longer than bros 
corolla yellowish white, stout, tubular, 5-6 cm. long; lobes crisped, usually acute, muc 
shorter than the tube: capsules subglobose or oval, 1.5-3 dm. in diameter. 
In sand, Key West, Florida. Also in the West Indies. 
2. Crescentia ovata Burm. f. An evergreen tree rarely 7 m. tall, with Eie 
foliage. Leaf-blades leathery, oblong to oblong-ovate, 7-15 cm. long, abruptly pointed at 
the apex, acuminate at the base, short-petioled : pedicels 2-8 cm. long, in terminal prins 
calyx glabrous; lobes 2.5—4 cm. long, obtuse: corolla dull purple or creamy on the Tower 
side, tubular-funnelform, 5-6 cm. long; tube indented below; limb oblique, with a 4a 
flexed upper lip: capsules green, oblong or oval, 6-10 cm. long, blunt-pointed, obscure'y 
4-ridged : seeds 2-lobed, about 2 cm. broad, somewhat shorter. 
In sand, Florida. Also in the Antilles and tropical America. 
FAMILY 18. MARTYNIACEAE Link. UNICORN-PLANT FAMILY. 
Annual or perennial stocky herbs, with thick branching stems. ped 
posite or rarely alternate: blades expanded, thick, simple, mostly iens : 
into petioles. Flowers perfect, irregular. Calyx inferior, sessile or sta 
