ORDEii xc. — sciioiMii r.AKfACK.r:. 455 



Genus III.— SCROPHULA'RIA. L. Ki— 2. 

 (From its supposed use in scrofula.) 



Cal>/x campaimlate, 5-cleft, with equal sog-nients. Corolla 

 with tJie tube globose, the border 5-cleft. Stamens 4, didyna- 

 mous. Caj^side 2-celled, inany-seeded. 



1. S. Martlan'dica, (L.) /S^cm erect, angled, glabrous, much Viranched. 

 Le L'es opposite, coi-date, ovate, laiiceolaie, serrate; petioles ciliate. 

 Flowers in compound, terminal panicles. Corolla twice as long as the 

 calyx ; the 4 upper segments erect, the lower one reflext d. — Greenish, 

 tinged Avith purple. If. Aug. — Oct. Rich soils. 2 — i feet. 



S. nodosa, L. 

 Genus IV.— CHELO'NE. L. 13—2. 

 (From chelone, a tortoise.) 



Calyx 5-parted, with 3 bracts. Corolla ringent, ventricose. 

 Stamens 4, with a fifth sterile filament shorter than the rest. 

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

 Seeds with a membranaceous margin. 



1. C. gla'bea, (L.) Stem angled, rooting at the joints, glabrous. 

 Leaves usually opposite, oblong-lanceolate, acuminate, serrate, glabrous, 

 nearly sessile. Floivers in terminal spikes. Bracts shorter than the 

 calyx. Calyx with the segments obtuse. Corolla with the lower lip 

 bearded. — White. If. July — Aug. In wet shady places. 2 — ?> feet. 



2. C. Lyo'ni, (Pursh.) Glabrous; stem obtusely angled. X^^a res op- 

 posite, petiolate, ovate, acuminate. Flowers in dense spikes; seg- 

 ments of the calyx and bracteas oblong, ciliate. — Rose-color. August, 

 Mountains. 



Genus V.— PENTSTE'MOK L'Her. 13—2. 



(^Torapcnte, five, and stemon, a stiimcn.) 



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

 sterile filament bearded on the upper side and longer than the 

 others. Anthers smooth. Cajjsule ovate, '2-celled, 'J-valvod. 

 Seed numerous. 



1. P. l.«:viga'tus, (Sol.) Stetn glabrous, or slightly pubescent, terete. 

 Leaves ovate, oblong; those of the root lanceolate, acute, upper ones 

 slightly denticulate. Flowers in terminal panicles. Cahix hairy. Co- 

 rolla pubescent, upper lip 2-cleft, with the segments retlexed ; the lower 

 3-cleft. — Pale purple. U- June — Sept. Fertile soils. 1 — 2 feet. 



2. P. PUBEs'cKNS. Stein pubescent, erect. Leaves sessile, lanceolate, 

 oblong, serrulate, amplexicaul, pube:?eent. Flowers in terminal pani- 

 cles. — Pale purple. IX. May — Sept. In dry soils. 1 — 2 feet. 



8. P. dissec'tus, (Ell.) Stem erect, slightly pubescent. Leaves op- 

 posite, glabrous, compoimdly dissected, with the segments irregnl.ir, 

 linear. Flowers in panicle-, with the flowers at the summit «if the 

 branches. — Purple. U- Ju'h — July. Midtlle Georgia. 1 — 2 feet. 



4. P. DicrrA'us, (Nutt.) Glabrous, or rarely puberulent. Radi^-al 

 leaves petiolate, elliptic-oval or oblong ; cauline ones lanceolate, am- 



