PL ex. cal. 56. ONAGRARIiE. $42. CEnothera. 559 
B. Corolla 4-petaled ; stamens 8, opposite and interposed ; 
capsule 4-celled, 4-valved ; placentarium central ; seeds 
many. 
II. 342. OENOTHERA. Theophrast. Evening-primrose. 
Calyx long; limb 4-parted, deciduous; petals 4; sta- 
mens 8; pollen viscous; style 1 ; stigmata 4; capsule long, 
bluntly 4-sided, 4-celled, 4-valved, many-seeded; placenta- 
rium 4-sided ; seeds naked. 
CEnothera hiennis. Biennial evening-primrose . 
Stem muricatedly villous ; leaves ovate, lanceolate, flat ; 
stamens shorter than the corolla; capsule conical, rather 
swelled below. 
Lysimachia lutea Virginiana, Gcr. em. 475, 4. 
CEnothera biennis, Lin. S. P. 492. 
Tree primrose. 
Sandy places, naturalized; biennial; July to November. 
Stem 3 feet high ; flowers yellow, very large, open in the 
evening. 
III. 343. CHAMiENERION. Gesner. Persian-willow . 
Calyx long, bent upwards, deciduous; petals 4, unequal; 
stamens 8, declining ; pollen not viscous ; stigmata 4, revo- 
lute ; capsule long, bluntly 4-sided, 4-celled, 4-valved ; 
placentarium 4- sided ; seeds many, comose. — Leaves lanceo- 
late, sessile; flowers spiked, large, reddish. 
Chamcenerion spicatum. Spiked Persian-willow . 
Leaves scattered, linear, lanceolate, not cut, veined, bald ; 
peduncles in the axillae of the bracteae ; spike pyramidical. 
Lysimachia speciosa, quibusdam Onagra dicta, siliquosa, Raii Syn . 
310, 1. 
ChamiEnerion, Ger.em. 477,7. 
Chamcenerion flore Delphinii, Park. Par. 270. 
Epiiobium angusti folium, Lin. S. P. 492. 
Epilobium spicatum, Lamarck Enc. Meth. 2, 373. 
Roscbay willow-herb. French willow. 
Fields and hedges ; perennial; July. 
Root erect; stern 3 feet high, upright, branched above; 
spike leafless; flowers alternate, purple or white; ovary 
woolly; stameiis and pistils move regularly during impreg- 
nation; pollen blue. — Suckers of the root eatable; herb in 
infusion fermentible and intoxicating; down of the seed 
mixed with cotton may be manufactured. 
