90 DICOTYLEDONOUS. 



petals larger than the stamens. Capsules clavate, tapering at the base into a 

 pedicel. 



Bright yellow. <v>, or '2].. April — May. Common in dry soils. 1-2 ft. 



7. (E. Glauca. Stem glabrous, somewhat glaucous, erect, branching 

 above. Leaves sessile, ovate or oblong-ovate, denticulate. Flowers very 

 showy, in short, leafy, corymbs ; petals emarginate, broadly obovate, erosely 

 crenulate at the summit, much longer than the segments Oi the calyx. Cajp- 

 S7iles winged, pedicellate, ovoid. 



Bright yellow. %. May — July. Carolina. 2-3 feet. 



8. (E. RiPAKiA. Stem slightly pubescent, slender. Leaves linear-lanceo- 

 late, elongated, attenuate, entire, remotely denticulate. Flowers in leafy, 

 elongated racemes; tube of the calyx longer than the ovary; segments of 

 the calyx acuminate ; petals obcordate. Capsules oblong, clavate, 4- winged, 

 with 4 intermediate ribs. 



Yellow, cf • June — July. In damp soils. 2-3 feet. 



Genus III. GAURA. 



Calyx 4-cl8ft, tubular, prolonged beyond the ovary, decidu- 

 ous ; segments reflexed. Petals 4, unguiculate. Stamens 8, 

 .somewhat declined, anthers attached near the middle. Ovary 

 4-celled, with 1-2 suspended ovules in each cell ; style fili- 

 form, declined. Fruit somewhat ligneous, indehiscent, by 

 abortion 1-celIed. 1 -seeded, 4-angled. Perennial plants, with 

 alternate leaves. Flowers in terminal spikes or racemes. 



1. G. Angustifolia. iS^em terete, pubescent. Leaves clustered, sessile, 

 linear, repand, undulate, denticulate, somewhat hairy. Flowers in terminal 

 panicles formed of slender racemes; calyx with reflected segments; seg- 

 ments long, linear; petals inserted near the summit of the calyx, spatulate, 

 obtuse, shorter than the segments of the calyx. Fruit ovate, with acute or 

 winged angles; 



White. 1L. July— Aug. Common. 2-3 feet. 



2. G. Biennis, Stem villous-pubescent, branching. Leaves lanceolate* 

 acute, denticulate, or entire, pubescent, sometimes glabrous above when old. 

 Flowers crowded in the terminal spikes; segments of the calyx rather longer 

 than the petals ; petals spatulate, larger than the preceding. Fruit oval-ob- 

 long, acute at each end, with 4 conspicuous ribs. 



White or red. (^. July — Aug. Upper districts. 3-5 feet. 



3. G. FiLiPES. Stem sufTructicoee at the base, branching above. Leaves 

 linear, or oblong-linear, acute at the base, often in the axils, remotely, sin- 

 aately toothed, often almost pinnatifid, mucronate. Flowers in panicles, on 

 very slender branches, calyx hairy, with segments exceeding in length the 

 petals ; petals spatulate, oblong ovate. Fruit clavate, on a filiform pedicel, 

 4-an»led. 



White or reddish. %. July — Aug. In dry soils. 2-4 feet. 



Genus IV. .TUSSI^A. 



Calyx 4-6 parted ; tube prismatic, or cylindrical, not ex- 

 tended beyond the ovary. Petals 4-6, spreading. Stamens 

 double the number of petals. Capsule 4-6 celled, oblong, rib- 

 bed. Seeds numerous. Herbaceous plants, growing in wet 

 places. Leaves alternate. Flowers axillary. 



X. J. Grandiflora. Root creeping. Stem erect, ascending, Uttle branch- 



