140 
GQENOTHERA sErRRULATA. 
Serrulated-leaved Evening Primrose. 
OCTANDRIA MONOGYNIA,—Nar. Orv. ONAGRARLE. 
Gen. Cuar.—Calyzx quadrifidus, tubulosus. Petala quatuor. Capsula qua- 
drilocularis, quadrivalvis, cylindrica, infera. Semina nuda.—lV, 
(Enothera serrulata ; foliis linearibus spinuloso-serratis acutis, floribus 
axillaribus solitariis, calycis foliolis carinatis, stigmate quadrilobo, 
capsula cylindracea. 
CE. serrulata, Nurrauu’s Gen. Amer. Pl. v. i. p. 246.—Nurt. in Journ. 
Acad. Nat. Sc. Phil. v. iii. p. 120. 
“ A low, perennial, suffruticose plant,” (Nurt.) Stem and branches slender, 
terete, reddish, scarcely pubescent. Leaves alternate, 3 or more inches 
long, linear, tapering at the base, and acuminated at the point, glabrous, 
single-nerved, spinuloso-serrate. 
Flowers solitary, of a moderate size ; measuring about an inch and a half in 
diameter when fully expanded. Calyx funnel-shaped, yellowish, with 
4 acute, at length reflexed, ovate, deeply carinated, lobes. At the base 
of these lobes, within, and forming, as it were, a continuation, of the a 
per part of the funnel-shaped portion of the calyx, are the 4 roundish, 
bright yellow, remarkably crumpled and rather spreading petals. Sta- 
mens 8, alternately shorter, with very short filaments, and linear-oblong 
yellow Anthers. Germen inferior, linear, obtusely 4-angled, or slight- 
ly pubescent. Style much shorter than the corolla. Stigma peltate, 
deep brown, 4-lobed. 
Discovered by Mr NuTTALL on the summits of hills, in 
the plains of the Missouri, and of the Red River, and first cul- 
tivated in the garden of the University of Pennsylvania, whence 
seeds were kindly communicated to our garden by Mr Mvr- 
Ray. We have kept it ina pot in the open alr, occasionally 
giving it the shelter of a frame. 
VOL. I. 
