FABACEAE l 627 
1. Parosela Dalea (L^) Britton. Foliage glabrous below the inflorescence. Stems 
simple and erect, or branched at the base, the branches decumbent or ascending, 2-6 dm. 
long: leaflets 15-41, the blades oblong, cuneate or oblanceolate, 3-8 mm. long, obtuse, at 
the apex, often cuneate at the base : spikes cylindric, 2-7 cm. long : bracts ovate to lanceo- 
late, acuminate, hyaline-margined: calyx densely silky, about equalling the bract in 
length : lobes linear-lanceolate, long-acuminate, plumose : corolla pink or pale violet, or 
the standard white. [Dalea alopecuroides Willd.] 
On prairies and in dry soil, Minnesota to Alabama, Texas, New Mexico and Mexico. Spring to fall. 
2. Parosela enneándra (Nutt.) Britton. Foliage glabrous to the inflorescence. 
Stems erect, 3-10 dm. tall, wand-like or usually branched, the branches ascending or 
spreading : leaflets 5-11, the blades linear-oblong, or cuneate-oblanceolate, 5-10 mm. long, 
glandular, obtuse or acute, involute: spikes more or less interrupted, 2-11 cm. long, 
braets suborbicular, about 4 mm. long, mueronate: calyx silky, conspicuously surpassing 
the bract; lobes filiform-subulate, plumose, much longer than the tube: corolla white ; 
standard ovate, cordate ; wing-petals shorter than the keel : stamens 9. 
On prairies, Iowa to South Dakota, Mississippi, Texas and Colorado. Spring and summer. 
3. Parosela pogonáthera (A. Gray) Vail. Foliage glabrous. Stems branched at 
the base, the branches spreading or prostrate, 5-30 em. long, simple or branching : leaflets 
5-11, the blades linear-oblong to oblanceolate, 5-10 mm. long, involute, obtuse or retuse at 
the apex: spikes oblong or cylindric, 1-6 cm. long: bracts ovate, concave, mucronate, 
ale, glandular: calyx densely pubescent, surpassing the bract; lobes setaceous or subu- 
ate, plumose, much longer than the tube: corolla purple: stamens 10. 
In dry soil, Texas to New Mexico and Mexico. Spring to fall. 
4. Parosela lasiáthera (A. Gray) Heller. Foliage more or less glaucous or bright 
green. Stems branching at the base, the branches erect or ascending, 1-3 dm. long, 
simple or branching: leaflets 5-9, the blades linear-oblong or oblong-oblanceolate, 5-12 
mm. long, obtuse or retuse at the apex: spikes cylindric, 3-8 cm. long: bracts ovate- 
orbicular, 4-6 mm. long, cuspidate : calyx densely pubescent ; lobes subulate, shorter than 
the tube: corolla purple-red. 
In dry soil, Texas to New Mexico and Mexico. Spring to fall. 
5. Parosela formdsa (Torr.) Vail. Foliage glabrous. Stems woody, much branched, 
several dm. long, zigzag, sometimes with many short lateral branches: leaves inconspicu- 
ous, mostly about 1 cm. long: leaflets 9-12, the blades cuneate to oblong-cuneate, 2-4 mm. 
long, thick, retuse at the apex, revolute: peduncles usually 5-10 mm. long: bracts ovate, 
acuminate, ciliate, about 5 mm. long : spikes head-like, 6-10-flowered : calyx villous, fully 
em. long: lobes subulate-setaceous, plumose, about twice as long as the campanulate 
tube : corolla bright purple, about 1.5 em. long. 
In dry soil, Texas to New Mexico. Spring and summer, 
9. Parosela Hállii (A. Gray) Heller. Foliage strigillose. Stems more or less 
copiously branched at the base, the branches 1-4 dm. long, ascending or spreading, 
slender, simple or with spreading branches: leaves with petioles seldom 1 cm. long: leaf- 
lets usually 3, the blades linear, rather narrowly so, 1-2 cm. long, acute, pale, silky: spikes 
sessile or nearly so, 2-5 cm. long, few-flowered, 1-1.5 em. thick, interrupted at maturity : 
deis ovate, acuminate, about 5 mm. long: calyx villous-hirsute, barely 1 cm. long ; lobes 
8 Rr subulate, somewhat longer than the tube, slightly plumose: corolla yellow about 
. - long. 
On rocky prairies, Texas. Spring to fall. 
S 7. Parosela aürea (Nutt.) Britton. Foliage pubescent with whitish appressed hairs. 
tems often tufted, sometimes branched at the base, the branches usually simple : leaflets 
^s the blades oblong, obovate or oblanceolate, 6-18 mm. long, obtuse or mucronulate, 
yis tate: spikes oblong or ovoid, 2-7 em. long, densely pubescent : bracts triangular-ovate 
: oll ate, boat-shaped: calyx surpassing the bracts; lobes filiform-subulate, plumose : 
orolla yellow ; standard shorter than the other petals. 
On prairies, South Dakota to Missouri and Texas. Spring and summer. 
on Parosela nana (Torr.) Heller. Foliage silky-stri illose. Stems branched at the 
obl the branches 5-15 cm. long, ascending or spreading: leaflets 3-5, the blades obovate, 
Ey a vate or cuneate-oblanceolate, 5-10 mm. long, obtuse or mucronulate: s ikes 
din, or oblong, 1-2 cm. long, short-peduncled : bracts oval or nearly so, 3-3.5 mm. long, 
t d nd calyx surpassing the bracts ; lobes subulate-filiform, plumose, longer than the 
ube: eorolla white. 
In dry soil, Texas to Arizona and Mexico. Spring to fall. 
is prier Wrightii (A. Gray) Vail. Foliage copiously pubescent. Stems 
ed at the base, the branches erect or ascending, 0.5-1.5 dm. tall: leaflets 3-5, the 
