OCTANDRIA MONOGYNIA. 355 



sile, ovate-lanceolate, serrate-ciliate, sprinkled with appressed hairs 

 on both sides. 



HAB. Wet meadows. July August, Tj. ; stem quad., 1 foot high. , 

 flower large, purple. 



185. CENOTHERA. Night willow-herb. 



CE. biennis: stem villous and scabrous ; leaves ovate-lanceolate, flat, 

 dentate ; flowers somewhat spiked, sessile ; stamens shorter than t'ae 

 corolla. 



HAB. Fields. June October, $ ; stem 3 5 feet high; leav. 

 alternate ; flowers racem., yellow. 



CE . fruticosa : somewhat villous ; leaves linear-lanceolate, subdentate, 

 acute; petals broad-obcordate ; capsules oblong-clavate, pedicellate, 

 quadrangular ; raceme naked below. 



HAB. Hills and woods. June, ; stem 12 18 inches high, pur- 

 ple ; leaves punctate. 



CE. pumila: smooth; stem ascending; leaves lanceolate, very entire, 

 obtuse ; capsule subsessile, elliptical-obovate, angular. 



HAB. Dry fields. June, Ij.; a span high; flower small; pet. 

 obcordate. 



186. GAURA. 



G. biennis: leaves lanceolate, dentate; spikes crowded; fruit round- 

 ish, subquadrangular, pubescent. 



HAB. Banks of rivers. Aug. J*; stem 1 2 feet high, hairy; 

 flowers numerous, rose-colored. 



187. EPILOBIUM. Willow-herb. 



E. spicatum : leaves scattered, veined, smooth ; flowers subspicate ; 

 stamens declinate. 



HAB. Swamps. August, 7J. ; stem 3 5 feet high, terete ; calyx 

 col. ; flower large, purple. 



E. coloratum : stem terete, pubescent ; leaves lanceolate, serrulate, peti- 

 olate, opposite, smooth, with colored veins ; the upper ones alter- 

 nate. 



HAB. Wet places. July August, 7].; stem 3 4 feet high; up- 

 per branches subquadrangular ; flower axillary, purple ; caps. 2 3 

 inches long. 



E. rosmarinifollum : stem terete, pubescent, branching above ; leaves 

 linear, very entire ; those on the stem opposite ; on the branches al- 

 ternate ; flowers pedunculate ; petals bifid ; stigma entire. 



HAB. Swamps. Aug. %; root bulb, and scaly ; flower very small, 

 pale purple. 



188. OXYCOCCUS. Cranberry. 



O. macrocarpus : creeping ; branches ascending ; leaves oblong, near- 

 ly flat, obtuse, with distant obsolete serratures, glaucous beneath ; 

 pedicels elongated ; segments of the corolla linear-lanceolate. 



HAB. Sphagnous swamps. June, Tj.; stem long, fllif. ; flower red { 

 berry scarl. 



o 1 



