9 G. tenuifolia Vahl. Paniculate, much-branched; sts. angular: lvs. linear; ped. axillary, longer than the flowers, about equaling the lvs.; caps, globular.-

A slender and delicate species, usually very branching, in fields and woody, U

S. and Can. St. 6 to 12' high. Lvs. about an inch long, very narrow (1" in width) entire, rough edged, often coiled. Fls. opposite, axillary, on slender stalks, an inch or less in length. Cor. purple, spotted within, border much spreading,

. smooth and nearly equal. Cal. teeth short and acute. Aug.-Sept.

10 G. setacea Walt. St. erect, sparingly branched, slender, 4-angles margineds lvs. remote, linear or setaceous, acute at each end, the floral ones 2 or 3 times shorter than the very long peduncles; cal. teeth very short, acute; cor. lobes short, spreading; caps, roundish ovoid, scarcely exceeding the calyx.- S. and W. States, dry grounds. Plant 12 to 18' high, the stem and few branches quite slender and rough on the slightly winged angles. Lvs. 5 to 10" long, few And far between. Ped. 1 to 1 1/2' long. Cor. (5 to 6") glabrous, light purple or rose-color. Jl, Aug. (G. Skinneriana, 2d edit.)-Scarcely blackens in drying.

30. CASTILLE'JA, L. (Euchroma, Nutt.) Painted Cup. (Named for one Castillego, a Spanish botanist.) .Calyx tubular, 2-4-eleft.; cor. galea (upper lip) linear, very long, carinate-concave, lower short, 3-lobed; sta. beneath the galea, didynamous; anth. oblong-linear, with unequal lobes, cohering in the form of an oblong disk, the exterior fixed by the middle, interior pendulous.-Herbaceous or suffruticous. Lvs. alternate, the floral often colored at the apex. Fls. subsessile, in terminal, leafy bracts.

1 C. coccinea Spreng. Los. sessile, pinnatifid, with linear and divaricate, segments; bracts about 3-cleft and colored at the summit, longer than the corolla; cal. 2-cleft, nearly equaling the corolla segments retuse-and ettlarginate.- Wet

,' meadows, Gan. and U. S., rare in N. Eng., remarkable for its large, bright, searle

(or bright yellow I) bracts. Stem angular, simple, 8-12.' high. Leaves with about 2, long, linear segments on-each side'. Bracts crowded near the summit of the stem, each with a dull yellow flower in-its axil, less showy than itself

May. Jn.

2 C. sessiliflora Ph. Pilose-pubescent; lvs. sessile, clasping, oblong-linear, mostly trifid with the lobes divaricate; cal. sessile, elongated; spikes dense; cor. long, exserted, arched, segments of the lower lip acuminate.- Prairies, Wis. (Lapham) and westward. Stem 8-14' high, several from the same root, simple, leafy. Leaves grayish, 2-2 1/2' long. Flowers crowded. Corolla tube slender, 2-3' in length, greenish-white, with a slight tinge of purple. Style and stamens enfolded by the upper lip, and a little exserted. May. (E. grandiflora Nutt.)

3 C. septentrionalis Lindl. Lvs. linear, undivided, the upper lanceolate, the floral subovate, subdentate at the end, all 3-veined; cal. with acute teeth, shorter than the corolla.- A hardy inhabitant of Alpine and high northern regions, White Mts., N. H. to Hudson's Bay. St. a foot high, simple. Lvs. sessile, smoothish, becoming lanceolate towards the upper part of the stem, and near 2' long. Tuft of fls. at top of the stem. Bracts broader and shorter than the leaves, 6 to 7-veined, of a pale straw color tipped with purple. Fls. straw-colored, nearly concealed by the bracts. Aug. (Bartsia pallida Ph.)

31. SCHWAL'BEA, L. Chaff-seed. (In honor of Schwalbe, a German botanist.) Calyx tube 10-ribbcd, inflated, obliquely 4-cleft, upper division small, lower large, emarginate or 2-toothcd ; corolla ringent, upper lip entire, arched, lower 3-lobed ; capsule oblong; seeds many, chafty.-

With alternate leaves and flowers in a terminal spike.

S. Americana L. In sandy barrens and marshes, N. Y. to Fla. and La. Stem 1- 2f high, pubescent, stout, simple. Leaves sessile, ovate-lanceolate or oblong, 3-veined, 1' to 20" long, with a ciliate margin. Bracts ovate, acuminate, diminishing upwards. Flowers on simple, alternate, very short pedicels, in a long spike. Corolla dull purple or brownish-yellow, twice as long (1-1 1/4') as the permanent, strongly-ribbed calyx. Jn.

32. PEDICULA'RIS, L. Lousewort. (Lat. pediculus, a louse ; probably from its efficacy in destroying that insect.) Calyx ventricous, 2 to 5-cleft, the segments leafy, or sometimes obliquely truncate; corolla vaulted, upper lip compressed, emarginate ; lower lip spreading, 3-lobed; capsule 2-celled, oblique, mucronato; seeds angular.-Herbs. Lvs. alternate, rarely subopposite, often pinnatifid. Fls. spicate.

1 P. Canadensis L. Hirsute; st. simple; Ivs. alternate, petiolate, lance-oblong, pinnatifid, lobes oblong-ovate, crenate-dentate; spike short, dense, leafy; cal. truncat3 downwards; cor. galea abruptly incurved, with 2 setaceous teeth; caps, ending in a prolonged ensiform beak.- Pastures and low grounds, U. S. and Can. St. erect, If high. Lvs. 3 to 6' by 1 to 2', chiefly radical. Spike short, hairy, with a few small leaves at the base. Cor. yellowish and purple, the upper lip long, erect, forming a galea or helmet, cut square off at the end, with a bristle-like tooth at each corner. Beak of the capsule often near 1' in length. May- Jl (P. gladiata Mx.)

2 P. lanceolata Mx. Nearly glabrous; st. branched; lvs. subopposite, briefly petiolate or sessile, oblong-lanceolate, doubly incised crenate; spike rather dense; cal. 2-lobed; cor. galea as long as the lip, incurved over it and closing the throat; caps, short, ovoid.- In alluvial woods, N. Y. to Wis. (Lapham), S. to Va. St. 1 to 2f high, smooth, with pubescent lines, nearly opposite lvs., and a few axillary branches. Lvs. 3 to 5' by 1 to 1 1/2'. Spike 1 to 3' in length, with ovate-lanceolate bracts. Cal and cor. smooth, the latter greenish yellow, 1' long. Style a little exserted. Sept. (P. pallida Ph.)