SCOROrUULARINE^. 215 



small ; lower lar<rc, emar«;lnate. Corolla l)ilal)ia(e, ringent ; 

 the uppiT lip arched, entire, the lower 3-iohecl. CapstiU 

 ovate, 'J-celleci, 2-valve(J. Seed numerous, wingeii. 



1 S Americana. iSV<rm pubescent, angled, simple. L^ovm alternate, lan- 

 ceolate, entire, sessile. Flotcers in lerminai racemes, nearly sessile. Bract* 

 2, a> ' ' • calyx. 



% May— June. Pine barrens- 



GExrs VIII CIIELONE. 



Calyx 5.parte(l, with 3 bracts. Corolla ringent, ventricose. 

 Stamens 4, with a fit'th sterile filament shorter than the rest. 

 Anthers woolly. Capsule 2-celied, 2.valved, many seeded. 

 Seeds with a membranaceous margin. 



1 C Glabra, ^/cth angled, rooting at the joints, glabrous. Z^aies usually 

 — -igite, oblong-lanceolate, acuminate, serrate, glabrous, nearly sessile. 

 i-rrs in termmal spikes. Bracts shorter than the calyx. Calyx \?ith the 

 ec-jnients obtuse. Corolla with the lower lip bearded. 



White. % July — Aug. In wet shady places. 2-3 ft. 



Genus IX PEXTSTEMON. 



Calyx 5-leaved, bilabiate, ventricose. Stamens 4, with a 

 filth sterile filament, bearded on the upper side, and longer 

 than the others. Anthers smooth. Capsule ovate, 2-celled, 

 2-valved. Seed numerous. 



1 P L-EviGATTM. ^icm glabrous, or slightly pubescent, terete. Leave* 

 ovate, oblong: tb.osc of ihe root lanceol.ite, acute, upper ones slightly denti- 

 culate. Floiners in terminal panicles. Calyx hairy. Corolla pubescent, up- 

 per lip 2-cleft, with the segments reflected ; the lower 3-cleft. 



Pale purple. ^ June — Sept. Fertile soils. 1-2 ft. 



2 P Pi'BEsrE.vs. S^«n pubescent, erect. Z«ife» sessile, lan-.-eolate, oblong* 

 •errulate, amplexicaule, pubescent. F/oioers in terminal panicles. 



Pale purple. ^I- May— Sept. In dry soils. 1-2 ft. 



Ji P DissECTCTU. Stem erect, slightly pubescent. Leaves opposite, gla- 

 brous, compoundly dissected, with the segments irregular, linear. Flotcers in 

 panicles, with the flowers at the summit of the branches. 

 Purple. 4- June — July. Middle Georgia. 1-2 feet. 



Genus X HERPESTIS. 



Calyx 5-cleft, unequal. Corolla tubular, somewhat bilabi- 

 ate. 67awien.s 4 didynamous, included. Coj>5m/c 2-celled, 2- 

 valved, with the dissepiment parallel to the valves. 



1 H CuxEiFOLiA. S/«m prostrate, branching, glabrous, succulent. Leave* 

 opposite, cuneate, obovate, obscurely crenate towards the summit, sessile- 

 Flowers on axillary peduncles about as long as the leaves; the three exterior 



Xienta of the calyx broad, the two narrow, with 2 bracts at the base. Cor- 

 nearly campanulate, with a S-clelt border; segments nearly equal. 

 Pale purple % May — OcL Inundated lands. 



2 H RoTU?n)rFOLiA. Stem procumbent, assurgenf, pubescent. Ijiovea 

 oval, D«ariy orbicular, slightly hairy, amplexicaule. Flovxrt on opposite p*- 



