ONAGRACE.E, 134 LUDWIGIA* 



p. muricata. 5'/cm muricate, purple ; s/flmens as long as the corolla. Leaves 

 narrow-lanceolate, acute at each end. Stem 1 — 2 feet high. July. 



2. CE. pu'mila. 



Leaves lanceolate, entire, obtuse ; capsules slightly stalked, elliptical, ovate, 

 angular. A small, half-erect plant, common in grass lands, continuing to blos- 

 som through the summer. Stem G — lU inches high, oblique at base, round, 

 slender, with sessile leaves. Flowers yellow, small, in a leafy spike, opening 

 in succession, one or two at a time. Per- Dwarf Eveuing Primrose. 



3- (E. frUtico's.^. 



icr/yci' linear-lanceolate, subdentate; peirt/s broad-obcordate ; capsule stalk^ 

 ed, oblong-clavate, angular; raceme naked below. An annual species, with 

 a hard, suffruticose, purple stem, 1 — 2 feet high, found in woods and sandy 

 plains. Leaves punctate. Flowers yellow. June. Shrubby CEnotherU. 



4. CE. linea'ris. 



Stem slender, often decumbent at base, much branched ; leaves narrow- 

 lanceolate, obtuse, somewhat denticulate ; flowers large, in terminal corymbs; 

 tube of the calyx longer than the ovaries ; petals longer than stamens ; capsules 

 canescent, with alternate, slightly winged angles, tapering at base. Stem 1 — 

 2 feet high. April — July. 



5. CE. chrys.\'ntha. 



Sfe?rt ascending, slender; flowers small, crowded, spicate ; tube o( the caljx 

 equal in length to the ovary, longer than the segments ; petals orange-yellow, 

 obovate, emarginate, longer than the stamens; capsules smooth, clavate, the 

 alternate angles slightly winged ; leaves lanceolate, obtuse, attenuate at base, 

 denticulate, radical ones spathulate. Stem 1 — 2 feet high. Jn. Jl. 



3. GAURA. 



Calyx 4-clcft, tubular; corolla 4-petaled, ascending towards 

 the upper side ; stamens 8, seldom 6, deciinale, the alternate 

 ones a little shorter. Nut usually 1-celled, 1 — 4-seeded. 

 Flowers spicate. 



Gr. ycivQoi, superb; on account of the noble spikes of rose-colored flowers. 

 Cal. of a cylindric tube, much prolonged beyond the ovary. Cor. of 4 equal 

 petals, with narrow claws inserted into the tube. Ova. oblong, of 4 cells, 

 one only proving fruitful, 



G. bie'nnis. 



imrcs lanceolate, remotely-toothed; .*r/?(Ac crowded ; /)r^//sdeclinate, spread- 

 ing; styles declinate. A beautiful biennial, with a profusion of rose-colored 

 flowers. Stem 5 feet high, leafy, much branched. Leaves alternate, sessile. 

 Flowers in dense, terminal clusters, very numerious, with a reddish calyx and 

 petals at first wliite, becoming red. Grows on the dry banks of streams. 

 August. Biennial Gaura. 



4. LUDWl'GIA. 

 Calyx 4-parted, short, tubular; corolla 4-petaled; stamens 

 4, opposite the calyx lobes; style 1, short; capsule 4 celled, 

 many'seeded. 



