270 DICOTYLEDONOUS PLANTS. 



. 20. BARTSIA. Linn. 



Calyx 4-cleft, mostly coloured. Corol ringent, with a con- 

 tracted orifice ; upper lip concave, longest, entire; lower 

 one in 3 equal reflexed lobes. Capsule ovate, compressed, 

 2-celled, many-seeded. Seeds angukir. 



Didynamia. Angiospermia, 



B. pallida Mich. : leaves alternate, linear, undivided, 3-nerved ; up- 

 per ones lanceolate ; floral ones sulcate, toothed at the end ; teeth of 

 the calyx entire, acute. 



HAB. Mountains. N. H. Can. and Labrador. Aug. H. Stem 

 ; . 12 inches high. Flowers yellow, pubescent ; floral ones purple. 

 Sprengel has removed this species to the genus Casteileja of 

 Mutis. 



21. EUCHROMA. Nutt. 



Calyx ventricose, 2 4-cleft. Corol bilabiate ; upper lip 

 very long and linear, embracing the style and stamens ; lower 

 lip short and trifid, without glands. Anthers linear, with un- 

 equal lobes, all cohering in the form of an oblong disk. Cap- 

 sule compressed, ovate, oblique, 2-celled, 2-valved. 'Seeds 

 numerous, small, surrounded by a mcmbranaceous inflated 

 vesicle, Didynamia. Angiospcrmia. 



E. coccinca Nutt. : leaves and* coloured bracts pinnatifidly 3-cleft : 

 negments divaricate ; calyx 2-cleft, nearly as long as the corol ; seg- 

 ments ret use and enmrginate. Bartsia cotcinea Linn. 



.HAB. Wet grounds. Can. to Flor. W. to Miss. May, June. 

 If. Stem 8 12 inches high. Bracts scarlet. Corol yellew. 



Painted -cup. 



22. MELAMPYRUM. Linn. 



' Calyx 4-cleft. Upper lip. of the corol compressed, margin 

 folded back ; lower lip grooved, trifid, subequal. Capsule 2- 

 celled, oblique, opening on one side ; cells 2-seeded. Seeds 

 cartilaginous, cylindric-oblong. Didynamia. Angiospermia. 



M. americanum Mich. : lower leaves lanceolate or linear-lanceolate ; 

 floral ones lanceolate, toothed at the base ; flowers axillary, distinct. 

 M. lineare Lam: and M. latifolium Muhl. 



HAB. Woods. Can. to Car. June, July. (&.Stem 812 

 inches high, branched at the upper part. Flowers yellow. It 

 varies considerably in the form of the leaves. Coio Wheat. . 



ORDER XC. LABIATE. Juss. Lind.' 



Calyx tubular, regular or bilabiate, persistent. Carol bi- 

 labiate ; upper lip entire or bifid, the lower 3-cleft ; the upper 



