scrophulariacetE. 269 



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

 and dentate ; helmet of the corolla truncate at the apex. P. pallida Pursk 

 Low grounds. Can. to Virg. W. to Miss. Sept. ^21. — Stem 1 — 2 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. %. — Stevis 8—12 inches 

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

 minal spike. Common Lousewort. 



20. EUPHRASIA. Z,m7i.— 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 eraarginate 

 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. ®. — 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. Hooh. Common Eye-bright. 



21. CASTILLEJA. Mz^ilw.— Painted Cup. 

 (Named by Mutis after his friend Castillejo.) 



Calyx tubular, ventricose, spatlie-like, 2 — 4-cleft. Corolla 

 2.1ipp(^ ; upper lip long and narrow ; the lower with 3 veiy 

 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 rosul ate ; 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 Null. Bartsia coccinea Linn. 



Wet grounds. Can. to Flor. W. to Miss. April, May. %.—St€m 8—15 

 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 



