118 DICOTYLEDONOUS PLANTS. 



4-sided or obovate-clavate, 4-celled, 4-valved, many-seeded, 

 united with the base of the calyx. Octandria. Monogynia. 



* Capsule elongated, 4-sided, sessile. 



1. (E. biennis Linn.: stem villous and scabrous; leaves alternate, 

 ovate-lanceolate, flat, toothed, very pubescent ; lower ones on short 

 petioles ; upper sessile ; flowers sessile, in a terminal spike ; petals ob- 

 cordate ; stamens shorter than the corol. 



HAB. Fields. Throughout the U. S. June Sept. and cf- 

 Stem 3 5 feet high. Florcers yellow, large, in a terminal 

 Jeafy spike. Scabish-tree. Primrose. 



2. (E. muricata Linn.: stem purplish, muricate ; leaves lanceolate, 

 flat ; petals obcordate ; stamens as long as the corol. 



HAB. Old fields. N. Y. to Car. July, Aug. Q*. Flowers yel- 

 low, smaller than in the preceding species. According to De 

 Candolle it resembles the next, but the margin of the capsule it 

 not 8-cleft. 



3. (E. parciflora Linn. : stem smooth, subvillous ; leaves ovate- 

 lanceolate, flat ; stamens longer than the corol ; capsule crowned with 

 an 8-clefl margin. 



HAB. Fields and woods. Can. to Virg. rare, cf Pwsh. 



4. (E. grandiflora Ait. : stem nearly smooth, branched ; leaves ovate- 

 lanceolate, mostly smooth ; flowers axillary, sessile, large ; petals 

 deeply obcordate ; stamens declining, shorter than the corol. 



HAB. Fields. Penn. to Car. July, Aug. tf.Stem 23 feet 

 high. Flmcers axillary, very large, bright yellow. Introduced. 



5. (E. sinuata Linn. : stem diffuse, pubescent ; leaves oval-oblong, 

 dentate-sinuate or incised ; flowers solitary, axillary, sessile, villous ; 

 capsule prismatic. 



b. minima Nutt. : stem low, simple 1-flowered ; leaves entire. 



(E. minima Pursh. 

 HAB. Pine barrens. N. J. to Geor. W. to Miss. June. If. 



Stem 1 6 inches high. Flowers small, terminal, yellow. Petals 



obcordate. 



** Capsules obovatc-clavatc, angular, mostly pedicellate. 



C. (E. fruticosa Linn. : pubescent ; stem branching from the base, 

 divaricate ; leaves sessile, lanceolate, slightly toothed, acute, pilose ; 

 flowers in a terminal raceme ; petals broad-obcordate j capsule oblong- 

 clavate, pedicellate, angled. 



HAB. Shady woods. N. Y. to Geor. July. If. Stem 1218 

 inches high, purplish. Flowers pale yellow. Corol larger than 

 the stamens. Sun-drop. Shrubby (Enothera. 



7. (E. ambigua Spreng. : more or less pilose ; stem simple ; leaves 

 lanceolate or ovate-lanceolate, acute, subdenticulate ; petals obcordate, 

 longer than broad ; points of the calyx very short ; capsule subsessile, 



