224 ORDER 88. SCROPHULARIACE.E. 



1 Ij. ERUBSCENS. Lvs. triangular-cordate, dentate-lobed, pubescent ; cal. segm. ovate, 



hirsute ; cor. downy, 2^ 3' long, red, with an ample border. 10 20f. 



2 Ij. SCANDENS. Lvs. cordate-ovate, pointed, coarse-toothed, smoothish; calyx segm. 



lance-ovate ; cor. glabrous, 2', scarlet, limb erect-spreading. lOf. 



13. SCROPHULARIA, L. FIGWORT. Calyx in 5 acute segments. 

 Cor. subglobous, limb contracted, sub-bilabiate, lip with an internal", inter- 

 mediate scale (sterile filament). Capsules 2-celled. Valves with 2 inflated 

 margins. Herbs or suffruticous, often foetid. Leaves opposite. Cymes in 

 simple or compound, terminal, thyrsoid panicles. Fig. 167. 



S. nodosa L. Glabrous, tall, branching ; leaves ovate, oblong, or lanceolate ; fla. in 

 loose pedunculate cymes, combined into an oblong panicle ; sterile anther a roundish 

 green scale on the dull, olive-colored corolla, if. Thickets. 4 fif. July Oct. 



14. CHELONE, L. TURTLE-HEAD. SNAKE-HEAD. Calyx deeply 5- 

 parted, with 3 bracts at base. Cor. inflated, bilabiate. Sta. 4, woolly, the 

 sterile filament shorter than the rest. Caps, valves entire. Seeds broadly 

 winged, it With opposite leaves and sessile flowers in the upper axils. 



1 C. glabra, L. Smooth ; Ivs. subsessile, oblong-lanceolate, acuminate, serrate, acute 



at base ; flowers densely spiked. By brooks and in wet places. 2f. Stems simple, in 

 clumps. Flowers 1' long, white or roseate, with short gaping lips. Aug., Sept. 

 /3. purpUrea, Lvs. distinctly petiolate, acuminate ; flowers rose-purple. West. 



2 C. Lyonl Ph. Smooth ; Ivs. ovate, acuminate, petiolate, serrate, the lower cordate; 



fls. in a dense spike. Mts. of Car. and Ga. 1 2f. Corolla purple, 1J'. July Sept. 



15. PENTSTEMON, L. BEARD-TONGUE. Calyx deeply 5-cleft. Cor. 

 elongated, often ventricous, lower lip 3-lobed, spreading. The fifth filament 

 (tongue) sterile, bearded, longer than the rest or about as long ; anth. smooth. 

 Seeds oo, angular, not margined. U N. American, branching, paniculate. 

 Leaves opposite, the lower petiolate, upper sessile or clasping. Flowers 

 showy, red, violet, blue, or white, in Summer. 



* Native E. of the Mississippi River, sometimes cultivated., .(a) 



a Leaves dissected. Corolla bell-shaped, lobes rounded, subequal No. 1 



a Leaves undivided, serrulate. Sterile filament (tongue) bearded Nos. 2, 3 



a Leaves entire. Tongue puberulent, widened and incurved at the apex No. 4 



* Native W. of the Mississippi, cultivated for ornament. . .(ft) 



b Leaves incisely pinnatifid. Corolla lobes subequal. Tongue smoothish. . .No. 5 



b Leaves serrate, with pale purple or blue flowers. Tongue bearded Nos. 6 8 



b Leaves entire. c Cor. strongly bilabiate, scarlet. Tongue bearded No. 9 



c Cor. scarcely bilabiate, d scarlet or crimson Nos. 10 12 



d blue or violet NOB. 13 15 



1 P. dissec tus Ell. Lvs. pinnately divided into linear segm. ; fls. in a loose panicle ; 



cor. with a curved tube, 9 10", purple ; tongue bearded at apex. Dry. Ga. 2f. Jn., Jl. 



2 P. pub&scens Sol. Pubescent or glabrous ; Ivs. ovate-oblong to lanceolate ; fls. in a 



loose panicle ; cor. tube 7 9", gradually enlarged upward, pale purple, lower lip with 

 two bearded folds inside, some longer than the upper. Hills and bluff?*. 1 2f. t 



3 P. Digitalis N. Glabrous; Ivs. elliptic to lanceolate, the ujjper clasping; fls. many, 



large, corolla tube abruptly enlarged to bell-form, pale blue or purplish, 1215" long, 

 throat widely open, beardless. Rich soil:?, Pa., W. and S. 3f. Leaves 36'. 



4 P. graiidiflorus Fras. Glabrous and glaucous ; Ivs. oblong-obovate to ronndish- 



orate, upper clasping, all entire ; panicle long, slender ; corolla bell-shaped, 15", limb 

 nearly regular, bluish purple. 111., Wi., and W. 3f. Handsome, t 



