8. E. grandiflorum (Nutt.! mss.): “ dwarfish, slightly roughened with
appressed forked or stellate hairs; leaves oblong-spatulate, obtuse entire or
somewhat angularly lobed towards the base; petioles long and slender; flowers
in capitate corymbs; siliques very long, somewhat torulose; stigma con-
spicuously 2-lobed.
“ Sand hills of Point Pinus, in the vicinity of Monterey, Upper California.
March.—Root very long and straight, perennial. Stems growing partly
under the sand, crowned with the vestiges of several years’growth of leaves -
the part above-ground 3 to 6 inches in height. Leaves very flat often wholly
entire, sometimes repandly denticulate, sometimes angularly lobed below
lamina an inch or more in length and 5-6 lines broad, attenuated at the base
into a slender petiole 1-2 inches long. Corymb scarcely extending beyond
the leaves. Flowers fragrant, deep yellow, uncommonly large. Inner sepals
saccate at the base. Petals with the claws exserted. Filaments very broad
flat. Siliques 2-3 inches long, somewhat curved upwards and outwards’
scarcely a line wide. Style scarcely any : stigma pubescent.” Nutt.
16. PACHYPODIUM. Nutt. mss.
“ Silique somewhat terete, elongated, torulose, on a short thick stipe.
Seeds in a single series, oblong, scarcely margined. Cotyledons obliquely
incumbent. Calyx nearly erect, equal at the base. Glands 4 at the base of
the stamens. Petals narrow, on very long claws.—Annual or biennial, generally
tall plants, with the siliques crowded and almost corymbose. Flowers
pale violet or rose-color. Leaves entire or laeiniate.”
1. P. laciniatum (Nutt.! mss.): glabrous ; leaves all petioled, laciniate-
pinnatifid ; flowers on spreading pedicels; petals linear, 3 times as long as the
calyx; stipe very short; siliques tapering at the summit—Macropodium laciniatum,
Hook.! bot. misc. 1. p. 341. t. 68, <£■ ji. Bar.-Am. 1. p. 43.
Rocky places beneath -cliffs on the Wallawallah and Oregon Rivers
Douglas ! Nuttall /—Stem erect, 1-3 feet high, branching. Leaves attenuated
into a petiole; laciniae spreading, entire or toothed. Raceme strict
dense. pedicels about 2 lines long. Sepals oblong. Petals very narrow
pale red or almost white. Anthers linear. Siliques an inch and a half
long, slender, much crowded at the summit of the peduncles, tapering into
a slender style: stigma small, simple: stipe less than a line in length. Radicle
lying near the edge of one of the cotyledons, but truly incumbent.—Very
distinct from Macropodium in the very short stipe of the silique, and in the
incumbent cotyledons. 2
2. P. integrifolium (Nutt.! mss.): “ leaves entire; radical ones petioled
oblong-elliptical; cauline lanceolate-oblong, sessile; uppermost nearly linear ’;
stem fastigiately branched ; flowers almost corymbose, crowded ; petals spat-
ulate-obovate; pedicels twice as long as the calyx; stipe short, but distinct
; silique abruptly pointed.
“ Elevated plains of the Rocky Mountains, towards the Oregon, as far as
Wallawallah.—© Stem terete, smooth, 3-5-feet high, attenuated upward
and sending .out numerous branches toward the summit. Flowers pale rose-
color. Pedicels about ,half an inch long, almost horizontal. Sepals membranaceous,
oblong. Stamens exserted. Claws of the petals extending beyond
the calyx. Siliques an inch in length, contracted between the seeds
nearly terete; the stipe nearly a line long.” Nutt.—Seeds as broad as the
c e ll; the radicle dorsal, lying midway between the middle and the edge of
one of the cotyledons. Septum with a broad longitudinal nerve.
3. P. sagittatvm (Nutt.! m ss.): leaves entire; the cauline ones lanceolate,
sagittate, clasping; stipe almost wanting; petals obovate, the limb as
long as the claw; silique abruptly pointed, nearly erect; raceme elongated
in fruit.
“ Plains on the west side of the Rocky Mountains.— About 2 teet
high, sparingly branched. Leaves somewhat glaucous, radical ones small
and spatulate. Flowers pale reddish-white. Sepals broadly ovate. Petals
nearly twice as long as the calyx, strongly veined. Pedicels of the fruit
nearly half an inch long. Siliques an inch and a quarter in length rather
broadly linear, somewhat incurved.” Nutt.—Seeds as broad as the c e ll; the
radicle dorsal and almost medial.—This species is hardly a congener with
the preceding. It may belong to Sisymbrium § Cardaminopsis.
17. STANLEYA. Nutt. gen. 2. p. 71; DC. syst. 2. p. 511.
Silique nearly terete, slender, supported on a long stipe. “ Seeds oblong,
somewhat terete. Cotyledons oblong-linear.” DC. Calyx colored, spreading.
Petals erect, linear or spatulate; claws exceeding the lamina in length,
and connivent into a tetrahedral tube. Stamens somewhat equal: anthers
linear.—Glabrous and glaucous perennial herbs. Leaves lyrately pinnatifid
or undivided. • Flowers yellow, in long racemes.
1. S. p in n a tifd a (Nutt.): leaves thickish, interruptedly lyrate-pinnatifid;
lobes somewhat lanceolate, entire or with 1—2 large teeth. Nutt.! gen. 2.
p. 71; DC. syst. 2. p. 512. Cleome pinnatifida, Pursh, Jl. 2. p. 739.
Rocks on the upper part of the Missouri, and near the head-waters of
Lewis’s River, Nuttall ! May.—Stems 2-3 feet high, often several from
one root, decumbent at the base.. Leaves large, sometimes with a very minute
pubescence on the under side, deeply pinnatifid. Flowers in a crowded
raceme, very showy: pedicels about half an inch long, erect-spreading.
Calyx linear, pale orange-yellow. Petals sulphur-yellow, the claw long and
very narrow, pubescent internally) lamina linear-oblong, about half the
length of the claw. Filaments very long and slender, pubescent below, with
a glandular enlargement at the base: anthers at length revolute. £ Silique
an inch or more in length; the slender stipe nearly an inch long.” Nutt.
—We have not had an opportunity of examining the ripe siliques of this
very interesting plant; neither were they found by Mr. Nuttall, either in this
or any of the following species, during his recent journey across the continent.
2. & integrifolia (James): leaves thick, ovate-oblong, entire, attenuate at
each end; stipe as long as the pedicel.—James ! in Long's exped. 2. p. 17.
Sandstone ridges at the base of the Rocky Mountains, Dr. James /—Stem
simple. Leaves 5-6 inches long and 2-3 wide, prominently veined, undulate.
Sepals deep yellow, spatulate-oblong. Petals yellow, spatulate-obovate;
claws very thick. Filaments recurved-spreading. Ovary flattened contrary
to the septum; the edges of the septum prominent. Style none.
3. S. heterophylla (Nutt.! mss.): “ stem erect, lower leaves lyrately pinnate,
somewhat pubescent beneath; terminal segment much larger, ovate-
lanceolate, somewhat serrate; upper leaves lanceolate, entire; lamina of the
petals longer than the claws.
“ Rocky situations near Lewis’s River, in the Rocky Mountains. A more
humble species than S. laciniata, which it resembles in the color of the flowers.
Under surface of the leaves pubescent with very short and somewhat
stellate hairs.”—Nutt.