flowered; the lower flowers somewhat remote. Petals deeD
E £ a i s J i t — * * f t
T O v s m a t e ? ^ 0^ 1 suffruticose, much branched, glabrous; leaflets
b S h K S e f l n n l f®5 caneate-°blong> »tuse, dotted with black glands
er“hantb?flnwP ll’ fe^ :flowered, short peduncles; bracts ovate, short-
S S w K;argm; piumose. j orr. ! in ann. lyc. New- York, 2. p. 1te7e8t,h of the calYx subulate,
rown S n iS s'«%?«' JameA /^ eafletS1 thick> abou* 2 lines long, very nar-
F1°wers large and showy, bright purple. Ca-
losa,dZ ag a 5 VeX1Um C°rdatel Sh°rter than the keel.-AUied to D. tubercu-
4. D. aurea (Nutt.): stem pubescent, erect; leaflets 3-4 pairs oblomr-
obovate and linear-oblong, more or less silky-pubescent; spiked ovate vefv
compact on long peduncles; bracts rhombic-obovate, as long as the calvx^
teeth of the calyx subulate, broad at the base, plumose.—Nutt.! gen 2 v
KR a j }. ! Tl.c.f P/ eita 1los ftem 7o4n1 ;c aDpitaat uPmro, dDZC 2. ‘1 .P c-. 244- Cylopogon fap1 tatum’
P l^ aVeny h irS’ near, Wr}iitG■ River> Missouri> Nuttall, Bradbury ! On the Platte, Dr. James! Prairies of Arkansas, Dr. Leavenworth! Texas
Drummond ! - 2 j Stem about 2 feet high. Leaves remote: leaflets 4-6
hnes long, when young almost villous beneath, nearly glabrous above, and of
a graSs-green colour when dry, often very sparingly dotted. Spikes 1-2 inches
tthhaant’ tlhl6e1 o7bwl o1nCgk' w°inag ys Xa nddj ekr ee,l-cpleeftta\l s.Corolla yellow: vexillum small,, shorter
i o \ aD' ? loVecuroif es ;(Wffid>) : glabrous, erect, much branched; leaflets
10-14 pairs, hnear-elliptical, obtuse or refuse, conspicuously dotted beneath
spikes cylindrical or oblong, silky-villous; bracts as long as the calyx • set-
eaiyx ianceolate acuminate, shorter than the tube .-W illd . sp.
S : d - Punh' 1- c4
AUuvial soils along the Mississippi and Missouri, Nuttall ! Prairies of
Illinois, S h o rt! In Carolina, Pursh.— ® Stem 1-2 feet high branched
Leaves numerous: leaflets about 3 lines long, pale green. Spikes 1-2 inches
long, on short peduncles. Calyx thiekly clothed with silky hairs — We have
never received this plant from the Southern Atlantic States There are
however specimens of Enslen m Lambert’s herbarium (perhaps collected in
Georgia), which are labelled D. alopecuroides ; but the spikes are onlv 6-8
flowered, and on very long peduncles. 3
§ Leaves palmately trifoliolate, not dotted with glands.
6. D .Jam e s ii: whole plant silky; leaves trifoliolate; leaflets obovate
very obtuse; stipules spiny; spikes oblong, sessile; calyx deeply cleft • see
ments setaceous, plumose; longer than the vexillum; keel longer than the
wings.—Psoralea Jamesii, Torr.! in ann. lyc. New-York 2. p. 175
Sandy plains of the Canadian, Dr. James!— Stems severalTrom one root
about 4 inches high, somewhat woody at the base. Petioles about half an
inch long. Leaflets as long as the petiole. Spikes dense and broad about
one inch long. Bracts ovate, acuminate, longer than the calyx. Keel and
wings purple, oblong: vexillum yellowish 1—We have detected no glands in
this singular species, which has, with trifoliolate leaves, wholly the flowers of
Dalea.
28. PETALOSTEMON. Michx.jl. 2. p. 48, t. 37 ; DC. prodr. 2. p. 243.
Calyx often glandular, 5-toothed (rarely 5-cleft), sometimes a little curved;
the teeth connivent, nearly equal. Petals 5, on filiform claws: four of them
nearly similar, their claws united to the stamen-tube quite to the summit
( alternate with the stamens), and deciduous by an articulation; the fifth petal
(vexillum) free, inserted at the bottom of the calyx; the limb cordate or
oblong, conduplicate. Stamens 5, monadelphous; the tube cleft. Ovary
with 2 collateral ovules. Legume membranaceous, enclosed in the calyx
indehiscent, 1-seeded.—Herbaceous, mostly perennial plants, dotted with
glands. Leaves unequally pinnate,1 exstipellate. Stipules minute, setaceous.
Flowers in pedunculate dense terminal spikes or heads.
1. P. candidum (Michx.) : glabrous; stem firm and erect; spikes cylindrical,
on long peduncles; bracts aristate, longer than the flowers; leaflets
3-4 pairs, lanceolate, sparingly dotted beneath; calyx nearly glabrous; petals*
ovate; vexillum broadly cordate.—Michx.! ft. 2. p. 49, t. 37, f 1 ; DC.
prodr. 2. p. 243 ; Hook. ! fl. Bor.-Am. 1. p. i37. Dalea Candida, Willd. sv
3. p. 1337. *
Dry prairies, Western and South Western States! north to the Sas-
katchawan River ! August.—Sparingly branched. Leaves an inch or more
in length, 2-3 lines wide. Spikes much elongated after flowering. Teeth
of the calyx shorter than the tube, ovate, somewhat pubescent on the margin
with 2 glands near the base of each. Petals white. Ovary pubescent. ’
2. P. gracile (Nutt.): glabrous; stem slender, decumbent or assurgent •
spikes oblong-cylindrical, short; bracts acute, as long as the calyx; leaflets
3 pairs, linear-elliptical, slightly dotted beneath; petals ovate; vexillum broadly
cordate.—Nutt.! in jour. acad. Philad. 7. p. 92.
Lower part of Alabama, and in Florida, Nuttall! Dr. Gates! Texas
Drummond /— ® Stem 1-2 feet long. Leaflets scarcely half an inch in
length, in the uppermost leaves often solitary. Spikes shorter than in the
preceding species, but the flowers nearly the same. Petals white.
3. P. multiftorum (Nutt.): glabrous; stem erect, branches fastigiate;
spikes roundish-oblong; calyx with the tube glabrous (the teeth short, pubescent
on the margin; petals ovate; leaflets 4^6 pairs, linear-oblong with
black dots on both surfaces— Nutt. ! in jour. acad. Philad. 7. p. 92.’
Prairies of Arkansas, particularly on the Red River, N u tta ll! Dr. Leavenworth
! T exas, Drummond !—About 2 feet high, much branched. Leaflets
4-6 lines long. Spikes scarcely half an inch long. Petals white rounded
or slightly cordate at the base.—Our Texan specimens differ from the
Arkansas plant in the smaller leaflets, but not essentially in the flowers.
4. P. macrostachyum (Torr.) : glabrous ; stem dotted ; leaflets 2-3 pairs
lanceolate-oblong, obtuse, dotted beneath ; spike cylindrical, elongated ; bracts’
lanceolate; calyx silky-villous, the teeth lanceolate; vexillum cordate.__Torr. >
in ann. lyc. New-York, 2. p. 176. P. ornatum, Dougl.! in Hook. fl. Bor -
Am. 1. p. 138.
About the Forks of the Platte, Dr. James! Prairies on Lewis’s River
Oregon, Douglas ! (v. s. in herb. Hook.)— ® '! Stem 1-2 feet high, branched.
Leaflets about f of an inch long, the upper surface becoming of a deep
verdigris-green in drying. Spikes when old more than 6 inches long; the
* In describing the species of this genus, we call petals the 4 which alternate with
the stamens: the 5th petal being the vexillum.