Mimuxus. XCL SCROPHULARIACER. 401 
3. P. cracitis. Nutt. (Chelone gracilis. Spreng.) Slender Beard-tongue. 
Glabrous; radical lvs. petiolate, elliptic-oblong or lance-oblong, cawline 
linear-lanceolate, amplexicaul, entire or remotely serrulate; panicle pubescent, 
slender; ped. erect; cal. segments ovate-lanceolate, acuminate; cor. tube long 
and narrow, scarcely dilated upwards, upper lip shorter than the lower; sterile 
sta. longitudinally bearded.—River bottoms, near Chicago, Ill., Mead, also Mo. 
and C. W. Plant simple, glaucous, 2f high. Peduncles 3—7-flowered. Flow- 
ers nodding, 9—10” long, pale blue. June. 
4. P. GranpirLorus. Fraser. (Chelone grandiflora. Spr.) Great-flowered 
Beard-tongue.—Erect, glabrous and glaucous; radical lvs. petiolate, obo- 
vate-oblong, cauline broadly ovate, the highest orbicular, amplexicaul, not con- 
nate; panicle long, slender and racemose, interrupted ; ped. short, solitary or 
fasciculate, rigid ; cor. broadly campanulate ; sterile fil. dilated and puberulent 
at apex.—lIll. near Prairie du Chien, Riddell, Mo., Nuttall. Stem 3f high. 
Flowers 1—3 together in the upper axils. Corolla 15” long, much dilated at 
the mouth, variously shaded with blue and purple. 
5. P. speciosus. Doug. Showy Penitstemon.—Erect, glabrous, glaucous; radi- 
cal luvs. petiolate, oblong-spatulate, cauline sessile, lanceolate ; panicle elongated, 
slender, virgate, secund; cal. segments ovate-oblong, acuminate, margin mem- 
branaceous; cor. tube enlarged upwards; sterdle fil. filiform, glabrous.—Oregon. 
Height 3—4f. Flowers 13’ long, blue. + 
6. P. campanuLAtus. Willd. (Chelone campanulata, augustifolia, rosea, 
atropurpurea, of authors.)—Glabrous; lvs. acutely serrate, lance-linear or lance- 
ovate, long-acuminate, often dilated at base; panicle long, loose and secund; 
cor. tube ventricose above, lobes subequal ; sterile fil. bearded.—Mexico. A very 
variable species, 2—3f high, with large flowers varying from light purple to 
dark red or purple. t 
7. P. parpatus. Nutt. Scarlet Pentstemon.—Glabrous and glaucous; vs. en- 
tire, lower oblong, upper lance-linear; panicle long and loose; cor. tube long, 
scarcely dilated upwards; lower lip and sterile fil. densely bearded.—Mexico. 
Height 2—3f. Corolla scarlet, 13” long. ¢ 
Obs.—P. gentianoides, with the panicle long, leafy at base, flowers violet, scarlet, &c., and a few other 
species are rarely found in gardens. 
Trize 5. GRATIOLEX. 
Corolla tubular, not saccate or spurred. Capsule bivalved, rarely indehiscent. 
Calyx lobes or segm. imbricate in est. Inflor. centripetal, uniform. Benth. 
10. MIMULUS. 
Gr. pepe, an ape; from the resemblance of the ringent or grinning corolla. 
Calyx prismatic, 5-toothed ; corolla ringent, the upper lip reflected 
at the sides; palate of the lower lip prominent; capsule 2-celled, 
many-seeded ; stigma thick, bifid — Herbs prostrate or erect, with square 
stems and opposite lvs. Ped. axillary, solitary, \-flowered. 
1. M. rincens. Monkey Flower. 
Lvs. sessile, smooth, lanceolate, acuminate; ped. axillary, longer than the 
flowers.—2| A common inhabitant of ditches and mud soils, Can. and U.S., 
with large, blue, ringent flowers. Stem erect, square, smooth, about 2f high. 
Leaves sessile, opposite, serrate, acute, lanceolate. Peduncles about as long as 
the leaves, square, curved upwards, axillary and opposite. Calyx tubular, 5- 
angled and 5-toothed. Corolla pale blue, yellow within. Jl. Aug. 
2. M. aLatus. Wing-stem Monkey Flower. 
Iws. petiolate, smooth, ovate, acuminate; ped. axillary, shorter than. the 
flowers; st. winged at the 4 corners—? In N.Y. to Ia., Plummer! and S. 
States, This, like the last species, inhabits ditches and other wet places, and 
grows to nearly the same height. The square stem, erect, smooth and winged 
at the 4 angles, affords an adequate distinction. Leaves stalked, ovate. Flow- 
ers ringent, on short stalks, light purple. Calyx teeth rounded, mucronate. Aug. 
3. M. turevs. (M. rivularis, lyratus, variegatus and guttatus ef authors.) 
