610 FABACEAE 
than the tube: corolla nearly similar to that of C. Virginiana ; standard sparingly pubescent 
without. 
In sand, peninsular Florida. 
. 2. Cracca Virginiàna L. Root long, tougb. Foliage villous-hirsute or canes- 
cent throughout: stems woody at the base, tufted, simple, erect or ascending, 3-6 dm. 
tall, angled and striate: leaves elliptic or linear-oblong in outline, 6-10 em. long or 
longer, nearly sessile ; stipules caducous ; leaflets 11-21, the blades of the lateral ones 1-3 
cm. long, mainly oblong or elliptic, obtuse or acutish, apiculate, glabrous or nearly so above, 
silky-villous beneath, often becoming glabrate with age: racemes often many-flowered : 
calyx silky-villous ; lobes lanceolate, long-pointed, longer than the tube: corolla cream- 
colored, tinged with purple or pink; standard copiously pubescent without: pods 3-5 cm. 
long, straight or somewhat curved, villous. 
In dry sandy soil, Ontario to Manitoba, Florida, Texas and Mexico. DEVIL's SHOE-STRING. 
3. Cracca holoserícea ( Nutt.) Small. Foliage pale green, densely pubescent. 
Stems branched at the base, the branches tufted, 2-4 dm. tall, villous-hirsute : leaves mostly 
8-12 em. long; leaflets 15-25, the blades of the lateral ones linear-oblong or linear-lanceo- 
late, except the more or less cuneate terminal one, 1-2.5 cm. long, apiculate, conspicuously 
and densely silky : racemes terminal, sessile; rachis like the pedicels which sometimes 
become 1 cm. long, densely villous-hirsute: calyx pubescent like the pedicels; lobes 
narrow, acuminate: corolla nearly 2 cm. long: pods linear, curved, 4-6 cm. long. 
On prairies, Arkansas and Louisiana and probably in Wisconsin and Illinois. 
4. Cracca Rugélii (Shuttleworth) Small. Root woody. Stem branched at the base: 
the several branches decumbent or assurgent, finely pubescent with bronze-colored hairs, 
leaves nearly oblong in outline; stipules 4-6 mm. long, persistent; leaflets 3-11, the 
blades of the lateral ones obovate, 8-17 mm. long, retuse and mucronulate, finely appressed- 
pc and yellowish green above, much paler or even gray and prominently veiny 
eneath : raceme terminating the stem, sometimes much reduced and represented by pairs 
of flowers in the upper axils: calyx tawny-villous; lobes very slender, nearly equal: 
ches probably purple at maturity : pods about 3-8 cm. long, somewhat faleate, tomentu- 
ose. 
In pine woods, along the Manatee River, peninsular Florida. 
5. Cracca purpürea L. Root elongated, slender. Foliage strigillose or glabrate: 
stems erect or ascending, 1-6 dm. long, branched, the branches spreading : leaves oblong or 
linear-oblong in outline, 0.6-1 dm. long; petioles 1-3 em. long: stipules setaceous: leaf- 
lets 7-17, the blades of the lateral ones linear, linear-oblong or oblong-cuneate, 2-5 cm. 
long, obtuse or acute at both ends, apiculate, sometimes glaucous beneath: peduncles 
2-sided : pedicel slightly longer than the calyx: calyx finely pubescent: lobes slender, 
as long as the tube: corolla white, turning purple, 6-10 mm. long ; standard minutely 
pubescent : pods linear, slightly falcate, 3-5 cm. long, strigillose or glabrate. 
In sandy soil, Florida to Arizonaand Mexico. Alsoin eastern Central and South America to Brazil. 
6. Cracca gracíllima (Robinson) Heller. Root relatively slender. Foliage glabrate 
or minutely pubescent: stems prostrate, very slender, 3-6 dm. long, diffusely branching, 
the branches flexuous : leaves linear-oblong in outline ; stipules 3-7 mm. long, setaceous, per- 
sisting ; petioles 3-9 cm. long; leaflets 5-17, the blades of the lateral ones linear, Rer 
long, acute at each end, minutely pubescent beneath : peduncles 5-10 cm. long: pedice 
7-10 em. long: bracts setaceous, persisting : calyx quite long-pedicelled ; lobes laneo aae 
subulate, about the length of the tube: corolla purplish, 8-12 mm. long ; standard P A 
cent: pods 3 cm. long or longer, 4 mm. wide, minutely hirsute, somewhat inflated a 
maturity. 
In pine lands, near Eau Gallie, Indian River, southern Florida. 
7. Cracca ambígua (M. A. Curtis) Kuntze. Root woody, elongated. hae 
hirsute with short spreading, somewhat viscid hairs: stems trailing or assurgent, 7-15 
long or longer, often purplish, dichotomously branching, straggling, angled : leaves dn & 
em. long, remote, linear-oblong in outline ; stipules 5-7 mm. long, lanceolate, p ET 
petioles 3-8 cm. long ; leaflets leathery, 7-11, the blades of the lateral ones apre 
to cuneate-oblong or obovate, 2-14 cm. long, acutish or mostly obtuse-apiculate, gia Ra 
and yellowish green above, appressed-hirsute with whitish hairs and the nerves isum 
turning reddish or purplish beneath: peduncles 1-1.5 cm. long, ancipital: calyx one 
subulate, as long as the tube : corolla 10-13 mm. long ; standard pubescent : pods 4 cm. 
or more, 4 mm. wide, nearly straight. 
In high pine lands, dry soil. North Carolina to Florda and Mississippi. 
