8CROPHOLARIACE.E. (FIOWOKT FAMILY.) 91 



* Flowers short-pediceled or nearly sessile, verticillate. 



1. C. bicolor, Benth. A foot or more high; leaves oblong-lanceolate, the upper 

 usually ovate-lanceolate and sessile by a nervose veined base; pedicels shorter than the 

 acute lobes of the calyx; the lower lip or the corolla violet or rose-purple and the upper 

 paler to nearly white; the saccate throat very oblique to the true tube, fully as broad as 

 long; gland short. The most showy species, with flowers nearly an inch long. 



2. C. tinctoria, Hartw. Foliage, etc., like the preceding; generally more viscid - 

 pubescent; flowers almost sessile; corolla yellowish, cream-color, or white, usually with 

 purple dots or lines; upper lip very short. East side of Sacramento Valley. 



3. C. bartsiaefolia, Benth. Puberulent and somewhat glandular; leaves from ovate- 

 oblong to linear; flower-whorls 2 to 5, rarely only one; the lateral lobes of the lower lip 

 emarginate or obcordate; gland elongated. Flowers nearly as large as the preceding, 

 purplish, pale violet, or whitish; upper lip with a transverse callosity at the origin of the 

 limb. 



4. C, Greenei, Gr. Upper lip of the violet purple corolla about half the length 

 the lower, crested below with a pair of callous teeth on each side connected by a ridge. 

 Corolla 5 lines long. Lake County. 



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* Flowers on slender pedicels, solitary or umbellate-whorled. 



C. C. sparsiflora, Fisch. & Mey. Slender; upper leaves linear-oblong or linear- 

 lanceolate, merely opposite or the upper minute floral bracts in threes; pedicels solitary 

 in the axils, longer or shorter than the flower which is 4 to 8 lines long; corolla mostly 

 violet; the upper lip and the middle lobe of the lower commonly yellowish and purple- 

 dotted; calyx usually purple-tinged. 



7. C. parviflora, DougL Low, at length diffuse about a span high; the blue, or 

 partly white flowers solitary or 2 to 5 in a whorl, 2 to 4 lines long; stigma cleft, gland, 

 capitate, short-stipitate. 



5. PENTSTEMON, Mitch. 



Calyx 5-parted. Corolla with a conspicuous mostly elongated or ventricose tube; the" 

 limb more or less bilabiate; upper lip 2-lobed; the lower 3-cleft, recurved or spreading. 

 The conspicuous sterile filament strongly marks the genus, remarkable for its many beau- 

 tiful species. (See ADDENDA.) 



1 . P. Menziesii, Hook. Tufted at the woody base, a span to a foot high; leaves oval 

 or ovate, a half to an inch long; corolla about an inch long, pink-red; anthers with the 

 diverging cells long- woolly. Mt. St. Helena, Mrs. M. L. Swell. 



2. P. corymbosus, Benth. A foot or two high, soft-pubescent or nearly smooth, 

 leafy to the tip; corolla scarlet, an inch long; anthers smooth; steril filament, bearded' 

 down one side. 



3. P. brevifionis, LindL 3 to G ft high, with long, slender, flowering branches; 

 torolla yellowish with flesh-color, striped within with pink, about half an inch long; the 

 upper lip beset with long viscid hairs; sterile filament naked. 



