190 PRACTICAL BOTANY. 



ner pendent. Flowers dull yellow, nearly sessile in the axils 

 of the scarlet, or bright yellow bracts, which are crowded 

 near the summit of the stem. Leaves entire, or incised. 



Castileja. 

 Upper corolla-lip not linear. Anther-cells equal. 



466 



466. Upper lip of the corolla vaulted, short-beaked at, 

 or 2-toothed below the apex ; lower erect, and nearly closing 

 the throat. Pod ovate or lanceolate, mostly oblique, several- 

 seeded. Leaves alternate, or somewhat opposite. _ Flowers 

 large, pale yellow, in a spike. Fedicularis. 



Upper lip of the corolla not vaulted ; notched, or 

 2-cleft, the lower 3-lobed. Leaves entire, many-nerved, or 

 nerveless, obovate, or roundish, commonly clasping. Flowers 

 solitary, axillary, blue. Herpestis (479). 



467. Calyx 4-toothed or cleft. Lower lip of the corolla 

 covering the upper in the bud 468 



Calyx S-toothed, cleft or parted 472 



468. Calyx 4-toothed, inflated, flat, ovate, broader than 

 the ringent corolla. Upper lip of the corolla arched, mi- 

 nutely 2-toothed, lower lip 3-lobed, the middle lobe condu- 

 plicate. Seeds broadly winged, rattling, when ripe,' in" the 

 large inflated calyx. Leaves oblong or lanceolate. Flowers 

 yellow, solitary, axillary, sessile. 



Rhinauthus Crista-galli, L. 

 Calyx 4-cleft, not inflated 469 



469. Calyx 10-ribbed 464 



Calyx not 10-ribbed 470 » 



470. Upper corolla-lip linear 465 



Upper corolla-lip not linear 471 



471. Seeds ribbed. Pod oblong, many-seeded. Flowers 

 ' in spikes. Calyx tubular, or bell-shaped. Upper lip of the 



corolla scarcely arched, 2-lobed ; lobes broad and spreading ; 

 lower lip 3-cleft, spreading, the lobes obtuse or notched. 

 Leaves ovate or oblong, the eauline crenate, the floral cut- 

 serrate, with cuspidate teeth. Herb 2 to 6 inches high. 

 Flowers small, greenish-white. Euphrasia officinalis, L. 

 Seeds smooth. Pod flattened, oblique, 1- to 4-seeded. 

 Flowers solitary, in the upper axils, small, yellowish-green. 



