ORDER XC. SCROPHULARIACEJ3. 455 



Genus III.— SCROPHULA'RIA. L. 13—2. 

 (From its supposed use in scrofula.) 



Calyx campanulate, 5-cleft, with equal segments. Corolla 

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

 mous. Capsule 2-celled, many-seeded. 



1. S. Marylan dica, (L.) Stem erect, angled, glabrous, much branched. 

 Leaves opposite, cordate, ovate, lanceolate, serrate; petioles ciliate. 

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

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

 tinged with purple. If . Aug. — Oct. Rich soils. 2 — 4 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-celled, 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. Flowers 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 — 3 feet. 



2. C. Lyo'ni, (Pursh.) Glabrous; stem obtusely angled. Leaves op- 

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

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

 Mountains. 



Genus V.— PEXTSTE'MON. L'Her. 13—2. 



(From pente, five, and stemon, a stamen.) 



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

 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-eviga'tus, (Sol.) Stem glabrous, or slightly pubescent, terete. 

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

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



pubescent, upper lip 2-cleft. with the segments reflexed ; the lower 

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



2. P. pubes'cens. Stem pubescent, erect. Leaves sessile, lanceolate, 

 oblong, serrulate, araplexicaul, pubescent. Flowers in terminal pani- 

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



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

 posite, glabrous, compoundly dissected, with the segments irregular, 

 linear. Flowers in panicle?, with the flowers at the summit of the 

 branches. — Purple. If. Jun e — July. Middle Georgia. 1—2 feet. 



4. P. digita'lis, (Xutt.) Glabrous, or rarely pubt-rulent. Radical 

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



