4 
CHYLISMA. ONAGRACE. 233 
PACHYLOPHUS. 
S. andinum Walp 1. c. 79. C£nothera andina Nutt. Canescently 
aeoceep throughout: stems slender, 1-3 inches high, becoming diffiusely 
ranched : leaves linear-spatulate €-12 lines long, attenuate into a slender 
. petsale: spikes mostly dense, many-flowered: flowers yellow. barely a line 
ong: capsule 3-6 lines long, attenuate upward from near the base: seeds 
linear-oblong, nearly smooth. On alkaline plains, eastern beech ape to 
Nevada, Montana and Utah. 
9 CHYLISMA Nutt. Raimann, Engl. & Prantl, Nat. Pfl. Fam. iii, 217. 
Caulescent annuals with pinnate or simple leaves and yellow 
flowers in terminal racemes. Calyx-tube funnel-form.or obconie, 
the limb 4-parted. Petals 4,entire. Stamens 8, unequal; anthers 
oblong, attached near the middle. Stigma capitate, entire. Cap- 
sule linear, subcylindrical or subclavate, obtuse, membranaceous, 
not sessile, seeds ascending, in a single row in each cell. 
C. secapoidea Small 1 c. 193. Mnothera scapoidea Nutt. Puberulent 
or subglabrous: stems erect, 4-18 inches high, usually branching from 
near the base: leaves mostly subradical!, long-petioled, lyrately pinnatifid, 
or sometimes undivided, the terminal segment much the longest, ovate 
to oblong-lanceolate, cuneate to cordate at base, irregularly serrate, the 
prominent veins often dark colored, the lateral leaflets few to many or 
none, very irregular in size and shape: racemes at first nodding, the bracts 
very small or wanting; calyx-tube funnel form with a narrow base, 1-2 
lines long, the bud closed and abruptly acute; petals yellow, 1-2 lines long: 
capsule glabrous, 4-12 lines long, attenuate into a pedicel 2-8 lines long, 
ascending or divaricate. Idaho and Wyoming to Utah and Southern Cali- 
fornia. 
C. cruciformis. Cnothera crucifurmis K-ll. GE. senpoidea Var. pur- 
purascens Watson. Stems erect, 6-18 inches high, stoutish usually branch- 
ing from near the base: leaves mostly subradical, long-petioled, lyrately 
pinnate, the terminal leaflets much the largest ; lateral few to several 
or none, very irregular in size and shape, racemes at first nodding, the 
bracts very small or wanting, calyx-tube funnelform with a narrow base, 
2-3 lines long; the bud abruptly acuminate, petals white or pinkish, rarely 
yellowish, 3-4 lines ‘long: capsule glabrous, 4-12 lines long, somewhat 
clavate, on pedicels’ 2-10 lines long On alkaline plains, Southeastern 
Oregon to Nevada and Southern Valifornia. 
10. PACHYLOPHUS, Spach. Hist. Veg. iv, 365. 
Acaulescent or very short caulescent perennials with entire or 
pinnatifid leaves and large white or rose-color flowers that open 
only at night or in cloudy weather. Calyx-tube elongated, some- 
what dilated at the throat, the limb 4-parted, erect in the bud. 
Petals 4, sessile white, changing to red in age. Stamens 8, un- 
equal: anthers oblong attached near the base. Capsule ovate or 
ovate-oblong, large and rigid, obtusely tetragonal or sharply 
angled, mostly sessile. Ovules horizontal, sessile few, in one or 
two rows. Seeds large, with a deep furrow along the raphe. 
P. Nuttallia Spach. Hist. Veg. iv, 365. Cinothera cxspitosa Nutt. 
Gla' rous or more or less villous with spreading subscabrous hairs: leaves 
oblong to narrowly lanceolate 2-12 inches long attenuate to a long petiole 
acute or acuminate, sometimes spatulate, irregularly sinuate-toothed or 
pinnatifid or repand-denticulate: tube of the calyx 2-7 inches long; 3-6 
lines wide at the throat, segments not free in the bud: petals broadly ob. 
