- STREPTANTHUS. CRUCIFERZ. 47 
CAULANTHUS. 
-3 lines long, acute but-not acuminate at. length petaloid-dilated undulate 
and whitish at the recurved tips: stamens in-3 unequal pairs, the upper 
part much the longest: torus dilated: pods. 2 inches long, faleate, on as- 
eending pedicels strongly torulose ; seeds wingless, though sometimes dis- 
tinctly but very narrowly margined. On dry rocky ridges-of the Siskiyou 
Mountains to the Sierra Nevadas. 
S. glandulosus Hook Ic. t.40(?). Sparsely setose-pubescent below, 
smooth above: stems erect from an annual root, 1-2 feet high, branching: 
lowest leaves broadly oval-or obovate, nearly sessile, dentate; cauline 
leaves ovate, clasping by a broad base, the uppermost lanceolate and 
acuminate, entire or denticulate: flowers purple; sepals acuminate 2-3 
lines long, somewhat pubescent or glabrate; the purple petals a half 
longer : one pair of filaments connate below: pods 144-214 inches long, less 
than a line wide, erect or ascending: seeds margined. Base of the Siski- 
you Mountains near Waldo, Oregon. ~ 
S. longirostris Watson Proc. Am. Acad. xxv, 127. Arabis longirostris 
Watson Bot. King 17, t. 2, Brewer and Watson Bot. Cal. i, 31. Glabrous 
and glaucous: stems erect 1-4 feet high from on annual root, branching 
from the base, radical leaves ovate-spatulate, entire or sparingly toothed : 
flowers spreading or reflexed purplish.or white 2-3 lines long: sepals lin- 
ear, not closed over the ovary 2 lines long, the lower pair saccate at base, 
but little shorter than the narrow petals: pods 1-2 inches long by a line 
broad, straight attenuate to a slender style, pendulous on short reflexed 
edicels: seeds elliptical, winged. In alkaline or sandy localities, Wallula, 
Washington to Lower California and Utah. He 
~ §. Howellii Watson Proc. Am. Acad. xx, 353. Glabrous and glau- 
cous: the stout leafy simp:e stem 6-30 inches high from a _ perennial some- 
what fleshy root: lower leaves obovate-spatulate, 1-6 inches long coarsely 
repand-dentate; the upper ones narrowly spatulate, entire not clasping : 
racemes elongated: pedicels 3-10 lines long not spreading: sepals purple, 
ovate, acute, 3 lines long more or less saccate; the dark purple petals but 
little longer: filaments all distinct: pods 2-3 inches long by 124-2 lines 
broad, erect or spreading on stout pedicels: seeds oblong, winged. South- 
ern Oregon near Waldo, and on Stein’s mountain, southeastern Oregon. 
8 CAULANTHUS Watson Bot. King, 27. 
Stout perennial herbs with mostly pinnatifid leaves and dull- 
colored flowers in. long loose racemes... Sepals large, nearly equ- 
ally saceate at base. Petals but little longer than the sepals, 
undulate-crisped, the blade only a somewhat dilated rhomboidal 
extension of the broad claw. <Anthers linear sagittate. Stigma 
2-lobed or slightly emarginate. Pods sessile or with a short and 
thick stipe, terete, elongated ; valves convexed, more or less dis- 
tinctly 1-nerved. Seeds in one row oblong flattened emarginate 
or scarcely margined. Cotyledons more or less incumbent. 
C. hastatus Watson Bot. King 28, t.3.. Glabrous,.stems stout, 3-5 feet 
high from a perennial root: simple or somewhat branched: leaves very va- 
riable, radical ones lyrate or entire the terminal leaflet much the largest, 
ovate, acute, hastate or truncate at base; cauline leaves ovate-oblong, en- 
tire, hastate, rounded or cuneate at. base: flowers greenish-yellow, in a 
‘loose virgate. raceme, reflexed, sepals. narrow-lanceolate, distinct: petals 
equaling the sepals, sublaciniately toothed laterallv : pods linear, subterete, 
obtuse, spreading.. On shaded slopesin the Blue Mountains of Oregon to 
the Wahsatch and Uintah Mountains of Utah. .. ; 
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