m OCTANDRIA, MONOGYNIA. 
Shrubby (Enothera^ or Tree-primrose. Sun-drops. 
A very handsome species, with much darker yellow flowers 
than those of No. 1. From two to three feet high. The flow- 
ers of this species, likewise, open at evening, and become par- 
tially closed when the sun appears. In shady damp woods, and 
on the borders of rivulets, ditches and other waters ; common. 
Perennial. July. 
^.ambigua, More or less pilose; stem simple; leaves lan- 
ceolate, or ovate-lanceolate, acute, subdenticu- 
late, petals obcordate, longer than broad ; points 
of the calix very short ; capsule subsessile, al- 
ways smooth, oblong, and 4-winged; raceme 
naked 
Generally confounded with No. 2, but very distinct. The 
stem is simple and slender, and the flowers much smaller than 
in that species. Grows in dry fields exposed to the sun, and on 
high exposed banks bordering Cooper’s creek, Jersey. On the 
Woodlands, not unfrequent. Perennial. August. 
sinuata. 3, CE, stem diffuse, softly pubescent; leaves oval- 
oblong, toothed-sinuate ; floAvers axillary, vil- 
lous; capsules prismatic. — Willd, Kiid PursJi. 
CEnothera biennis, Walt. ? 
Icon. Murray Com. Goett. 5. t. 9. Pluk. aim. t. 
203. f. 3. 
Scollop-leaved CEnothera. 
A semi-procumbent species, not as handsome as the gene- 
rality of CEnotheras. It varies very much in size; often being 
in flower when only an inch and a half high. In this state the 
leaves are entire, or nearly so ; and has been mistaken by 
Pursh for a different species. It is his CE, minima. Generally 
a foot high, but sometimes more. In sandy fields of Jersey, 
every where very abundant. Annual. June, July. 
186. GAURA. Gen. pi. 638. {Onagr<^.) 
Calioc 4-cleft, tubular. Corolla of 4 petals, 
ascending towards the upper side. .AAti 
quadrangular, 1 to 4-seeded. — JTvM. 
