SCIIOPHULARIACK.C. 269 



rough on the margin ; calyx bifid, with the segments roundish-ovate, leafy 

 and dentate ; helmet of the corolla truncate at the apex. P. paUida Pursh. 

 Low grounds. Can. to Virg. W. to Miss. Sept. Qi. Stem 12 feet high 

 Flowers large, straw-yellow. Capsule short and broad-ovate. 



Tall Lousewort. 



2. P. Canadensis Linn. : stem simple, oblique, pubescent ; leaves pinna- 

 tifid, the segments notched and toothed ; spike leafy at the base, hairy ; 

 calyx obliquely truncate ; helmet of the corolla with two setaceous teeth. 

 P. gladiata Mich. 



Meadows. Can. to Car. W. to Miss. May July. %. Stems 812 inches 

 high, often several from one root. Flowers yellow and purple, in a short ter- 

 minal spike. Common Lousewort. 



20. EUPHRASIA. Linn. Eye-bright. 



(From Euphrosyne, expressive of joy and pleasure, in allusion to its properties. 

 Hook. Brit. Fl.) 



Calyx tubular, 4-cleft, rarely with a fifth tooth. Corolla bi- 

 labiate ; upper lip bifid ; lower one of 3 obtuse or emarginate 

 lobes. Anthers with their lobes mucronate at base. Capsule 

 ovate-oblong, 2-celled. Seeds striate. 



E. officinalis Linn. : leaves ovate, deeply toothed, furrowed ; flowers ax- 

 illary towards the summit ; calyx 4-toothed, hairy ; lobes of the lower lip 

 of the corolla emarginate. 



Pastures. Arct. Amer. Richardson. N. Eng. Muhl. July Sept. (J). Stem 

 varying from one inch with often only a single flower, to 6 and 8 inches and 

 branched. Flowers axillary, but crowded at the extremities of the branches, 

 white or reddish, streaked with purple. Hook. Common Eye-bright. 



21. CAST1LLEJA. Mutis. Painted Cup. 



(Named by Mutis after his friend CastiHejo.') 



Calyx tubular, ventricose, spathe-like, 2 4-cleft. Corolla 

 2 -lipped ; upper lip long and narrow ; the lower with 3 very 

 short teeth. Stamens 4. Capsule ovoid-compressed, septifer- 

 ous in the middle. Seeds numerous, with a loose reticulated 

 testa. 



1. C. coccinea Spreng.: pubescent; radical leaves rosulate; cauline lan- 

 ceolate, pinnatifidly incised; floral trifid or incised, colored at the summit; 

 lobes of the calyx truncate, retuse or entire, nearly as long as the corolla. 

 Euchroma coccinea NuU. Bartsia coccinea Linn. 



Wet grounds. Can. to Flor. W. to Miss. April, May. %.Stcm 815 

 inches high, simple, reddish or purple, pubescent. Floral leaves scarlet towards 

 the summit. Flowers in a crowded spike, greenish-yellow. The variety palens 

 of Pursh, having the floral leaves yellow, and the whole plant of a pale yellow- 

 ish-green, has been found by Dr. Darlington at Downington, Penn. 



Scarlet Painted Cup. 



2. C. seplentrionalis Lind. : smooth or hispid-hairy ; leaves lanceolate, the 

 upper or all incised ; floral oblong or obovate, colored, incised ; lobes of the 



