520 Obdee 86.— SCEOPHULARIACE^. 



opening irregularly by a rift below the apex. — 71 Mexican, climbing by 

 their petiolea. Lvs. mostly alternate. Ped. long, flexuous, axillary. 



1 L. erubesoens Zuec. Lys. triangular-cordate, coarsely dentate or angular- 

 lobed, pubescent ; cal. segm. ovate, hirsute ; cor. pubescent, limb at length wide- 

 spread.^ A hairy climber, with soft, rugous lvs. 2 to 4' broad. Cor. of a rich red, 

 2J to 3' long, with an ample border. 



2 L. scandens Don. Lvs. cordate-ovate, acuminate, coarsely dentate, mi- 

 nutely puberulent; cal. segm. ovate-lanceolate; cor. glabrous, limb erect-spread- 

 ing. — Less hairy and with smaller flowers. Fls. scarlet. 



9. SCROPHULA'RIA, L. Figwokt. (So named from the resem- 

 blance of the roots to scrofulous tumors.) Calyx in 5 acute segments ; 

 corolla subglobous, limb contracted, sub-bilabiate, lip with an internal, 

 intermediate scale (sterile filament) ; capsule 2-cellcd ; valves with 2 

 inflated margins. — Herbs or sufFruticous, often fcetid. Lvs. opposite. 

 Cymes in simple or compound terminal, thyrsoid panicles. 



S. nodosa L. Glabrous ; st. angled ; lvs. ovate, ovate-oblong, or the upper lan- 

 ceolate, acute, serrate or subincised, base broadly cordate or rounded or aoutish ; 

 thyrse oblong, leafless or scarcely leafy at base ; cymes pedunculate, loosely many- 

 flowered; cal. segments broadly ovate, obtuse, slightly margined; sterile anth. 

 a roundish, green scale on the corolla. — If. In woods and hedges, Can., and TJ. S. 

 Bare in N". Bng. Stem 4 — 6f high, with paniculate, opposite branches above. 

 Leaves 3 — T' long, smooth, thin, often long-acuminate. Ms. ovoid, 3 — 4" long. 

 Limb very small, of a dull olive color. July — Oct. (S. Marilandica L, and lance- 

 olata Ph.) 



10. CHELO^NE, L. Turtle-head. Snake-hbad. (G-r. x^^'^'^'Vi ^ 

 tortoise ; from the appearance of the flower.) Calyx deeply 5-parted, 

 with 3 bracts at base ; corolla inflated, bilabiate, the fifth filament abor- 

 tive, smooth above, shorter than the rest ; anthers woolly ; caps, valves 

 entire ; seeds broadly membranaceous, winged. — "H with opposite lvs., 

 distinguished from Pentstemon chiefly by the seeds. 



X C. glabra L. Smooth ; lvs. subsessile, oblong-lanceolate, acuminate, serrate ; fls. 

 densely spiked. — A plant of brooks and wet places (Can. and U. S.), with flowers 

 shaped much like the head of a snake, the mouth open and tongue extended. 

 Stem mostly simple, 2f high, erect. Lvs. of a dark and shining green above, with 

 irregular serratures, sessile, or nearly so. Pis. large, in a short, terminal, dense 

 apike. Cor. white, often tinged with red, inflated, contracted at the mouth, with 

 short, gaping lips. Aug., Sept. 



p. PURPUREA. Lvs. distinctly petiolate, acuminate; cor. rose-purple. — This 

 variety prevails in the Western States. It is larger in its leaves and flowers. 

 Petioles ^ — 1' long. Flowiers very fine. (C. purpurea Mill. ?) 



2 C Lyoni Ph. Smooth; lvs. ovate, acuminate, petiolate, serrate, the lower cor- 

 date; fls. in a dense spike. — N. Car. to Ga., along the Mts. Stem 1 — 2f high. 

 Leaves 3 — 6' long, 2 — 4' wide, veins very prominent beneath. Fls. purple, 1' in 

 length, similar to No. 1. The spike as in that species, often branches, becoming 

 somewhat capitate. Jl, — Sept. 



11. PENTSTE'fflON, L. Beard-tongue. (Gr. ttevte, five, ot^jiov, 

 a stamen ; on account of the fifth large abortive stamen.) Calyx deeply 

 5-cleft ; corolla elongated, often ventricous, lower lip 3-lobed, spreading ; 

 the fifth filament sterile, bearded, Tongor than the rest or about as long; 

 a-nthers smooth ; seeds co, angular, not margined. — 7i rarely ^, of N. 

 America, branching, paniculate. Lvg. opposite. Fls. showy, rod, violet, 

 blue or white. 



* Leaves dissected. Sterile filament, benrded at tlio apex No. 1 



* Leaves undivided.— Sterile filament ^labrons or nearly so Nos. 2,8,9 



— Sterile filament boarded.— Lower Up txiarded insidu . , Nos. 8, T 



— Lower lip not bearded Noa. 4, 5, 



