88 
a scythe-shaped keel, style bearded down the inner face, and a linear- 
oblong flattish knotty several-seeded pod pointed with the base of the 
style. 
1. C. Mariana L. Low, ascending or twining, smooth: leaflets oblong-ovate or 
ovate-lanceolate; stipules and bracts awl-shaped: peduncles short: the showy pale 
blue flowers 5 em. long.—A species of the Atlantic and Gulf States and extending 
into Texas to the Perdinales. 
33. COLOGANIA Kunth. 
Twining herbs, with pinnately 3 (rarely 4 or 5)-foliolate stipellate 
leaves, small striate stipules, prominent and persistent bracts and 
bractlets, violet or red flowers, a tubular 4-toothed calyx, but little 
incurved keel, beardless style, and a linear flat straight or incurved 
stipitate pod. 
1. C. angustifolia Kunth. Stems slender and branching from a deep perennial 
root, striate-angled, cinereous-hirsute as is the foliage, etc.: petioles 12 to 18 mm. 
long; leaflets linear, very obtuse at both ends, mucronate, 2.5 to 5 cm. long, about 
4 mur. wide: flowers in pairs or solitary, on peduncles 12 mm. long, which are bibrac- 
teate at base and minutely bibracteolate next the villous-hirsute calyx: bracts and 
bractlets subulate: corolla violet-purple: pod narrowly linear, tlat, falcate, 2.5 to 
3.5 em. long, 7 to 9-seeded.—Mountains west of the Pecos. 
2. C. longifolia Gray. Leaflets sometimes 4 or 5, elongated linear, acute or obtuse, 
very smooth above, beneath reticulate and with fine close pubescence (also upon 
stem, calyx and pod): pod narrowly linear, straight, less flat, about 5 em. long, LO to 
14-sceded: otherwise as in C. angustifolia.—In the mountains west of the Pecos. Very 
variable in its leaves, which may be rigid or thin, 3.5 to 10 cm. long, 4 to 16 mm. 
broad, the narrowest ones often being the longest. 
3. C. pulchella HBK. Leaflets elliptical-oblong, obtuse, rounded or subcordate 
at base, pale and cinereous on both sides: calyx pilose-hispid.—In the mountains 
west of the Pecos. Known chiefly from its leaf-characters, but distinct enough in 
that particular from the other two species. 
34. GALACTIA P. Browne. (MILK-PEA.) 
Low mostly prostrate or twining perennial herbs, with usually 3 
(rarely 1 or 4 or 5) stipellate leaflets, purplish flowers in somewhat in- 
terrupted or knotty racemes, minute and deciduous bracts, a 4- cleft 
calyx with the upper lobe broadest and entire, beardless style, and a 
linear flat subsessile several-seeded pod. 
* Leaves 1-foliolate. 
1. G. marginalis Benth. Suffruticose, with prostrate, somewhat silky-pubescent, 
at length glabrous branches: the single leaflet oblong-lanceolate or linear, narrowed 
at base, coriaceous, glabrous, with a marginal nerve beneath, 5 to 7.5 em. long: 
peduncles very short, axillary, 1 to 3-flowered: calyx pubescent, its teeth as long as 
the tube: pod villous, 2.5 to 3.5 cm. long.—Eastern Texas and extending through the 
lowland counties to the lower Rio Grande. 
* * Leaves 3-foliolate. 
2. G. canescens Benth. Creeping, somewhat twining, canescent: leaflets broadly 
ovate, retuse, slightly hirsute above, silky-pubescent beneath, 3.5 em. long and over 
2.5 cm. wide: peduncles slender (some of them abortive), fasciculate, elongated, few- 
