3. A. herbacea (W alt.): small, shrubby, pubescent; leaflets elliptical, pe-
tiolulate, dotted, the lowest pair approximated to the stem ; flowers subsessile;
teeth of the calyx nearly equal, short, acute or acuminate; vexillum nearly
white. Walt. Car. p. 179; Nutt. gen. 2. p. 91; DC. 1. c. A. pubescens,
Willd. Berl. baum., & sp. 3. p. 970; Pursh, fl. 2. p. 467; Ell. sk. 2. r>.
189. A. pumila, Miclix. ! fl. 2. p. 64. r
Pine forests, &c. N. Carolina to Georgia! and Florida. June-July.—
Shrubby rather than herbaceous” (E llX 2-4 feet high. Leaflets obtuse or
acute, sometimes very small. Calyx purplish.
4. A. nana (Nutt.): shrubby,very low, nearly glabrous; leaflets somewhat
ovate-elliptical, mucronulate ; spikes solitary and aggregated; teeth of the calyx
all setaceous-acuminate; legume 1-seeded. Nutt.! in Eras. cat. & gen. 2.
p. 91; DC. 1. c .; Hook. fl. Bor.-Am. 1. p. 139. A. microphylla, P ursh!
fl. 2. p. 466. J ■ ’
On the woodless and grassy hills of the Missouri from the Platte to the-
mountains, Nu tta ll! (v. s. in herb. Lamb.) Plains of the Red River, British
America, in lat. 50°, Douglas. May.—An exceedingly compact shrub
with copious foliage and very small rigid leaflets, punctate with rather large
sparse pellucid dots. Calyx also glandular. Hook. Flowers purplish-blue
and fragrant. Nutt.—The figure of A. nana in Bot. mag. t. 2112, is referred
by Hooker to A. fruticosa.
5. A. Californica (Nutt.! mss.) r “ shrubby, pubescent; leaflets elliptical-
oblong, obtuse, rather distant, conspicuously dotted with brownish glands beneath
; petioles furnished with minute glandular scales ; stipules broad and
membranaceous; spike short and solitary; teeth of the villous calyx all acute
and short; bracts lanceolate, acuminate.
“ St. Barbara, California; near the coast. May.—Shrub rather lower than
A. fruticosa. Leaves in the young state almost villous. Bracts and stipules
brownish, caducous. The fully developed flowers not seen.” Nuttall.
6. A. Icevigata (Nutt, mss.): “ glabrous and very smooth; leaves large;,
leaflets distant, elliptical-oblong, attenuated below; the common petiole short;
stipules minute; bracts rather long and subulate, caducous ; calyx very glan-
d alar; the teeth acute, the 3 lower ones longer and acuminate; vexillum dee»
blue, about the length of the calyx; legume 1-seeded.
“Banks of the Arkansas, near Salt River.—A very distinct large shrubby
remarkably smooth species, with large distant and very obtuse leaflets, and
long (8-10 inches) clustered terminal spikes. Calyx nearly glabrous except
the margin, covered with elevated glands.” Nuttall.—This species we have
not seen. It is apparently allied to A. paniculata.
7. A. paniculata: whole plant canescently tomentose, except the upper
surface of the leaves which is nearly glabrous and shining; leaves on distinct
petioles; leaflets 7-8 pairs, elliptical-oblong ( li- 3 inches long), petiolulate
very obtuse and often emarginate or retuse at each end, dotted and prominently
veined beneath ; spikes numerous, virgate, in a large nearly naked ex-
serted branching panicle; flowers subsessile; teeth of the glandular and tomentose
calyx unequal; the 2 upper triangular-ovate and shorter; the 3 lower
triangular-subulate, the middle one somewhat longest; vexillum (purple)
broadly cuneiform, truncate, one-third longer than the calyx. ’
Arkansas, Dr. Leavenworth! Texas, Drummond!— Stem stout and apparently
tall. Leaves 8 inches to a foot or more in length. Stipules not
seen. Panicle often a foot or more long, compound. Spikes 6 inches in
length, the flowers much crowded: bracts setaceous, caducous.
8. A. canescens (Nutt.) : suflhiticose, rather low, softly canescent; leaves
sessile, very numerous and crowded; leaflets 15-24 pairs, closely approximated,
elliptical or ovate-elliptical (very small), mucronate, at length rather rigid
and almost glabrous on the upper surface; spikes aggregated in a terminal
subsessile panicle; flowers nearly sessile; teeth of the calyx rather long,
ovate-lanceolate, equal; vexillum subcuneiform-orbicular or somewhat ob-
cordate, bright blue; legume scarcely twice the length of the calyx, 1-seeded.
—Nutt.! in Fras. cat., <$■ gen. 2. p. 92; DC. prodr. 2. p. 256; Pursh!
fl. 2. p. 467; Hook. fl. Bor.-Am. 1. p. 139.
Dry prairies and sandy places, from Red River, British America, Dougla
s; and St. Croix River, Dr. Houghton! to Louisiana! and Texas ! west
to the Rocky Mountains. Near Augusta, Georgia, Dr. Leavenworth! July
-Aug.—Plant 1-3 feet high. Leaflets usually less than half an inch in
length, somewhat pellucid-punctate; the dots reddish-brown when old.
Spikes rather short and dense : flowers showy.—Lead-plant. Supposed to
indicate the presence of Lead-ore.
27. DALEA. Linn. ; Michx.! fl. 2. p. 56; DC. prodr. 2. p. 244.
Calyx often glandular, 5-cleft or 5-toothed ; the segments nearly equal.
Petals unguiculate; the claws of the wings and keel united with the stamen-
tube to the middle, deciduous by an articulation : vexillum free, inserted at
the bottom of the calyx ; the limb cordate. Stamens 10 (rarely 9), monadel-
phous ; the tube cleft. Ovary with 2 collateral ovules.* Legume membranaceous,
enclosed in the calyx, indéhiscent, 1-seeded.—Herbaceous or somewhat
shrubby plants, dotted with glands. Leaves unequally pinnate (rarely
trifoliolate), exstipellate. Stipules minute, setaceous. Spikes pedunculate,
terminal or opposite the leaves, dense, often capitate, rarely loosely-flowered.
1. D. laxiflora (Pursh) : glabrous ; stem branched above (tall), erect ;
leaflets 4-5 pairs, linear-oblong ; spikes panicled, interrupted, few- (10-15-)
flowered, the flowers distant ; bracts very broad, embracing the flower, coriaceous,
glabrous ; calyx with long setaceous plumose teeth ; stamens 9.—
Pursh! fl. 2. p. 741; Nutt. gen. 2. p. 101; DC. prodr. 2. p. 244. Cylopo-
gon virgatum, R a f. in jour. phys. Aug. 1819, p. 97.
Hills and prairies of the Missouri, and Mississippi, Bradbury ! Nuttall!
On the Platte, Dr. James! Arkansas, Dr. Leavenworth! Texas, Drummond
/ f ï 11 Stem with numerous slender somewhat spreading branches,
3-4 feet high. Leaflets 2-3 lines long, and about half a line wide, strongly
dotted. Racemes 2-3 inches long. Bracts almost orbicular, glandular, slightly
cuspidate. Calyx deeply cleft, beautifully plumose. Corolla white : keel
twice as long as the wings : vexillum cordate, very small, sometimes with 4
approximated glands near the middle.—In our Texan specimens the segments
of the calyx are remotely denticulate, a character which we have not
observed in the plant from other localities.
2. D. lanuginosa (Nutt. ! mss.) : decumbent, canescently tomentose ; leaflets
4-6 pairs, obovate-cuneate, emarginate; glands few, large; spikes elongated,
rather loose ; bracts ovate, with a long acumination ; teeth of the
calyx plumose, subulate, dilated at the base, as long as the tube.
Gravelly banks and islands of the Arkansas, near Fort Smith, Nuttall!
On the Platte, Dr. James!—If Whole plant clothed with a soft almost
woolly pubescence ; the branches prostrate and spreading widely in a circular
manner. Leaflets 5-6 lines long and about 2 lines wide. Spikes usually
opposite the leaves, 2-3 inches in length, on moderately long peduncles,
This is also the case in Onobrychis.