SCROPHULARIACEAE. 333 



deeply bilabiate, the upper lip erect, 2-cleft; the lower 

 lip larger, 3-lobed, the lateral lobes spreading or droop- 

 ing, flat, the middle one conduplicate, keel-like, enclosing 

 the 4 declined stamens and the filiform style. Stamens 

 didynamous; filaments filiform; anther-sacs confluent 

 at the apex. The fifth stamen represented by a gland 

 on the upper side of the corolla-tube near the base. 

 Stigma small, capitate or 2-lobed. Capsule ovoid or 

 globose, septicidaily 2-valved, the valves 2-cleft. Seeds 

 few, large, peltate, concave on the inner side. 



Flowers verticillate, showy; upper pair of filaments 

 bearded at base. 



Calyx-lobes mostly lanceolate, acute. 1. C. hicolor. 



Calyx-lobes mostly linear, obtuse. ^ 2. C. tinctoria. 



Flowers usually scattered; filaments glabrous. 



Stems puberulent. 3. C. parryi. 



Stems glabrous. 4. C. callosa. 



1. C. bicolor Benth. Simple or branched above, 1.5-4 dm. high, 

 glabrous or finely pubescent and often viscid above; leaves broadly 

 oblong or the upper narrowed from the broad base to the apex, 

 serrulate, 5 cm. long or less; flowers crowded in whorl-like clusters, 

 the lowest subtended by leaves, the others by bracts; pedicels shorter 

 than the oblong or lanceolate calyx-lobes; corolla about 2 cm. long; 

 the lower lip usually rose-purple; the upper lilac or white, its lobes 

 nearly as long as those of the lower; throat saccate, bristly within; 

 gland conic. 



Common in open places in the hills and mountains, mostly below 

 2000 feet altitude. April-May. 



2. C. tinctoria Hartweg. Resembling slender forms of the pre- 

 ceding in habit; herbage nearly or quite glabrous below, strongly 

 viscid above and giving off a brownish stain; calyx-lobes linear or 

 oblong-linear, obtuse; corolla pale purplish or nearly white and 

 streaked with purple, 12-15 mm. long, the lobes of the upper lip 

 very short, reflexed. 



Frequent on shady slopes in the upper portions of the chaparral 

 belt of the San Gabriel Mountains. April-June. 



3. C. parryi Gray. Stems puberulent throughout, simple or 

 more or less branched, 1.5-2.5 dm. high; leaves thinnish, the lower 

 oblong, crenate, petioled, the upper lanceolate-linear, obtuse, mostly 

 entire and closely sessile, 2-4 cm. long; pedicels solitary or the 

 upper in 2's or 3's, as long as or the lowest exceeding the flowers; 

 calyx-lobes oblong, obtuse; corolla deep blue, 6-8 mm. long, twice 

 the length of the calyx, the lips about equal in length, not longer 

 than the throat; capsule about equaling the calyx. 



Occasional in dry ground in the chaparral belt. Verdugo Hills. 



4. C. callosa Parish. Stems dichotomously branched, 10-30 

 cm. high, glabrous except the slightly glandular pedicels and calyces; 



