ORDER XC. SCROPITDXARIACE^E. 461 



cles shorter than the leaves. Calyx with minute teeth. Corolla pubes- 

 cent, ventricose, with the segments ciliate, with the tube nearly white. — 

 Purple. Q. Aug. — Oct. Dry sandy soils. Common in middle Geo. 

 6. G. linifo lia, (Xutt.) Stem erect, slender, with erect, virgate 

 branches. Leave* linear, appressed to the stem. Flowers on peduncles 

 ■barter than the leaves, which become elongated. Calyx truncate, with 

 5 minute teeth. — Purple. 2f . Aug. — Sept. Damp pine-barrens. 



Genus XVII.— DASYSTO'MA. {Gcrardia.) 



Cah/.r campanulate, 5-cleft. Tube of the corolla elongated, 

 large; limb spreading, 5-lobed ; lobes entire. Stamens 4, in- 

 cluded, didvnamous. Capsule ovate, acute. Seeds numerous. 



1. D. pubes'cens, (Benth.) (Gerardia Jlava, L.) Stem pubescent, 

 sparingly branched, or simple pubescent. Lower leaves lanceolate, 

 sometimes deeply serrate, on short petioles ; upper ones entire, or 

 slightly dentate. Flowers axillary, opposite, on very short peduncles. 



with subulate segments. — Yellow. If. July — Sept. Upper 

 dist! Car. and Geo. 2—3 feet. 



2. D. quercifo'lia, (Benth.) (G. quercifolia, Pursh.) Stem erect, 

 branching, obtusely angled, purple. Upper leaves lanceolate, sca- 

 brous; lower leaves pinnatifid, with acute, toothed segments. Flowers 

 axillary, on short peduncles. Calyx pubescent. Corolla pubescent on 

 the inner surface, ventricose. Anthers hairy. — Yellow. If. May — 

 Sept Rich soils. Common. 



3. D. pedicula'ria, (Benth.) (G. pedicular ia, L) Stem erect, branch- 

 ing from the base, purple, viscid, densely pubescent. Leaves oblong, 

 sessile, irregularly dissected, serrate. Flowers axillary, on short pe- 

 duncles ; segments of the calyx foliaceous. Corolla villous. — Yellow. 

 ©. July — Sept. Pine-barrens. Common. 



■4. D. pectina'ta, (Benth.) Very hirsute. Leaves lanceolate, pecti- 

 nate, pinnatifid ; lobes dentate or incised ; lower ones opposite. Calyx 

 with the lobes longer than the tube, often dentate. Corolla 3 times 

 as long as the calyx. — Yellow. If. 



Genus XVIIL— EUCHRO'MA. Xutt. 13—2. (Castilleja.) 

 (From eu, well or beautiful, and chroma, color.) 



Cahjx tubular. 2 — 4-cleft. ventricose. Corolla bilabiate, with 

 the upper lip very long, inclosing the stamens ; lower lip trifid, 

 short. Stamens 4. Capsule compressed, 2-celled, many-seeded. 



1. E. cocas ea, Spren.) Stem pubescent. Radical leaves lanceolate, 

 entire, hairy ; cauline ones pubescent, divided into 3 linear segments. 



rs in a terminal spike. Bracts large, red. — Yellowish. ^ or $ . 

 June — Aug. Common. 12 — IS inches. 



2. E. guandifeo'r.a (Xutt.) Leaves mostly trifid : segments divari- 

 cate. Calyx 4-cleft, oblique. Corolla longer than the calyx. Flowers 

 is many -flowered spikes, pubescent, long; segments of the lower lip 

 linear-lanceolate, acuminate, .-horter than the upper, plaited. Capsule 

 ovate, acute. — Greenish- white. 



Genus XIX.— s< HWALBEA. L. 13—2. 

 (In honor of C. Schwalbe, a German botanist) 



Calyx tubular, ventricose, obliquely 4-cleft, upper segment 



