scrophulaeiaceje. (pig-wort family.) 301 



laterally compressed, and enclosing the four didynamous stamens ; the lower 

 lip short, 3-lol)ed : anther-cells oblong-linear, unequal ; the outer one fixed by 

 the middle, the inner pendulous. Capsule loculicidal, many-seeded. — Herbs, 

 with alternate entire or incisely-lobed leaves, the uppermost colored. Flowers 

 in leafy spikes or racemes. 



1 . C. COCCinea, Spreng. Stem hairy ; radical leaves clustered, nearly 

 entire ; those of the stem pinnatifid, with the lobes linear ; the floral ones 3- 

 lohed, bright scarlet at the summit; corolla greenish-yellow. — Damp soil in 

 the upper districts. June - Aug. (f) — Stem 1° - 1 J° high. 



22. SCHWALBEA, L. 



Calyx tubular, oblique, 10 - 12-ribbed, 4-toothed, the upper tooth very small, 

 the lowest elongated, 2-cleft. Corolla bilabiate ; the upper lip oblong, arched, 

 enclosing the four didynamous stamens ; the lower rather shorter, obtusely 

 3-lobed : anther-cells parallel, equal. Capsule oblong, acute, loculicidally 

 2-valved, many-seeded. 



1. S. Americarlia, L. — Sandy pine barrens, Florida to Mississippi, and 

 northward. May and June. % — St«m simple, 1°- lj° high, pubescent. Leaves 

 alternate, lanceolate, entire, sessile ; the lower ones oblong, the uppermost linear, 

 small. Flowers in a spiked raceme. Corolla 1' long, yellow and purple. 



23. PEDICULARIS, L. 



Calyx tubular, more or less cleft at the apex, variously 2 - 5-toothed. Corolla 

 bilabiate ; the upper lip compressed, curved and bearded at the apex, enclosing 

 the 4 didynamous stamens; the lower lip 2-crested above, 3-lobed, with the 

 lateral lobes larger and rounded : anthers transverse. Capsule ovate or lanceo- 

 late, compressed, the upper portion empty. — Herbs, with finely and pinnately 

 divided leaves. Flowers in leafy racemes or spikes. 



1. P. Canadensis, L. Stem simple, hairy (6' -9' high); leaves alter- 

 nate, smooth, oblong or lanceolate, pinnatifid ; the lobes oblong, simply or 

 doubly crcnate ; spike dense, capitate, elongated in fruit ; corolla pale yellow 

 and purple ; the upper lip hooked, 2-awned under the apex ; capsule lanceolate, 

 exserted. — Shady woods and banks, Florida to Mississippi, and northward. 

 March and April. IJ. — Stem bearing slender leafy and rooting runners. Fruit- 

 ing spike 3' - 5' long. 



2. P. lanceolata, Michx. Stem tall (I°-3°), smooth, simple or spar- 

 ingly branched ; leaves nearly opposite, lanceolate, pinnately toothed, the teeth 

 crenate ; spike dense ; corolla pale yellow, the upper lip curved, awnless, the 

 lower erect; capsule ovate, scarcely exserted. — Swamps on the mountains of 

 North Carolina, and northward. Aug. and Sept. 



24. MELAMPYRUM, Toum. 



Calyx bell-shaped, with 4 subulate teeth. Corolla bilabiate ; the tube dilated 

 above ; the upper lip short, compressed, obtuse, straight ; the lower rather longer, 

 26 



