ORDER 88. SCROPHULAIUACE.E. 225 



5 P. RICHARDSONI. Smoothish, branching ; fls. 1', violet, in leafy panicles. Oreg. 2f. 



6 P. OVATUS. Puberulent ; Ivs. cordate-clasping ; fls. 9", numerous, light blue. Oreg. 2f. 



7 P. COB^A. Puber., tall; Ivs. lance-ovate, clasping ; fls. 2', broad-campanulate. Tex. 



8 P. CAMPANULATUS. Glabrous ; Ivs. lance-linear to lance-ovate, long-pointed ; panicle 



long, loose, 1-sided ; corolla tube inflated, large, bell-shaped. Mexico. 



9 P. BARBATUS. Smooth and glaucous ; Ivs. oblong to lance-linear ; cor. tube long (13"), 



scarcely dilated upward, lower lip and tongue densely bearded. Mexico. 2 4f. 



10 P. MURRAY ANUS. Glaucous; Ivs. connate-clasping, upper roundish ; cor. 18", bright 

 red, dilated upward, in a long virgate panicle ; tongue smooth. Texas. 3f. 



HP. HARTWEGI. Upper Ivs. clasping ; cor. tubular, 2', crimson ; tongue glab. Mex. Uf. 

 1 2 P. GLABER. Smooth and glaucous ; sts. in bunches, simple ; Ivs. lanceolate to ovate, 

 entire ; flowers 18", in slender panicles, blue-crimson. Nebraska, and W. 2f. 



1 3 P. SPECIOSUS. Tall ; st. Ivs. lanceolate, sessile ; cor. blue, 18", mouth ample, tongue 



filiform, the panicle long, virgate, secnnd, each cyme with 59 fls., very showy. Oreg. 



1 4 P. GENTIANOIDES. Tall ; st. Ivs. broad-clasping ; cor. 16", violet, mouth ample, tongue 

 glabrous, dilated and retuse at apex, the panicle long, some leafy. Mexico. 3 4f. 



15 P. CCERULEUS. Low, leafy; Ivs. lance., sessile; cor. blue, 8" ; tongue bearded. Neb. 



16. COLLINSIA, Nutt. INNOCENCE. Calyx 5-cleft. Cor. bilabiate, 

 orifice closed, upper lip bifid, lower trifid, with the middle segment cari- 

 nately saccate and closed over the declinate style and stamens. Caps, with 



2 bifid valves. Seeds large, concavo-convex. (I) With verticillate or oppo- 

 site leaves, axillary and terminal flowers, very pretty. 



1 C. verna N. Lvs. ovate to lanceolate, the cauline cordate-clasping, dentate ; verti- 



cils 4-6-ilwd. ; cor. blue and white, twice longer than the calyx, 2 or 3 times shorter 

 than the pedicel. Banks of streams, N. Y., and W. 8 18', branching. May, June. 



2 C. parviflora Doug. Lvs. ovate to lanceolate; verticils 2-6-flwd ; cor. blue, little 



longer than the calyx and little shorter than the pedicels. L. Sup., and W. 6-10'. Jn. 



3 C. BICOLOB. Stem Ivs. ovate, crenate, sessile ; verticils 6-10-flwd. : calyx hairy, longer 



than the ped. ; cor. 9", rose-violet and white. California. 2f. Hardy and handsome. 



4 C, GRANDIFLOBA has Ivs. thickish and all entire, with GO large blue-purple fls. Oreg. 



17. RUSSELIA, Jacq. Cal. 5-parted. Cor. tubular, limb sub-bilabi- 

 ate, of 5 short rounded lobes, the 2 upper twin. Sta. 4, the fifth a small 

 rudiment. Caps, subglobous, septicidal, valves bifid. Sds. Co, mixed with 

 hairs. J> Mexican. Lvs. opposite or whorled, often minute or scale-like. 



R. jfJNCEA. Very smooth, with long, drooping, rush-like branches ; Ivs. lanceolate to 

 linear, or scale-like on the branches. Flowers scarlet, 1', remote in drooping racemes. 



18. PHYGELIUS, Mey. Cal. 5-parted. Cor. tube long, enlarged above, 

 limb oblique, lobes rounded. Fifth stamen a minute rudiment. Caps, very 

 oblique, with unequal cells. > Caffraria. Leaves opposite. Flowers in 

 n loose panicle of cymes. 



P. CAPENSIS. Shrub 2f, smooth and beautiful. Leaves lance-ovate, crenate, petiolate. 

 Flowers pendulous, H', crimson, yellow within. 



19. PAULOWNIA, Siebold. Calyx deeply 5-cleft, fleshy. Cor. tube 

 long, declinate, enlarged above, limb oblique, with rounded segments. Sta. 

 4, arched downward, with no rudiment. Caps, acuminate, valves septifer- 

 ous in the middle. Seeds 00, winged, o From Japan, with very large 

 cordate, ovate leaves and large blue-purple fragrant panicles. 



