SCROPHULARIACEAE 187 



inflated above; sterile filament longer than the others, densely bearded on the up- 



per side from the apex more than half way to the base. 



JEIab. Hills, along Schuylkill : not common. FL June. Fr. Aug. 



Obs. The P. laevigatus, of SOLANDER, is now regarded as a variety 

 of this; though, as I have been accustomed to see it, in gardens, 

 it appears to be pretty distinct, and every way a much finer 

 plant. 



* * Stamens 4 perfect, and no rudiment of a fifth. 



270. MIM'iriJJS, L. 



[Or. Mimo, an Ape; in allusion to its grinning flowers.] 

 Calyx tubular, prismatic, 5-angled, 5-toothed. Corolla tubular, 

 somewhat personate; upper lip 2-lobed, reflexed at the sides, lower 

 lip 3-lobed, with the palate prominent. Stamens didynamous, in- 

 cluded. Stigma 2-lipped. Capsule lance-ovoid ; seeds acute at each 

 end. Mostly smooth perennials: stem square; leaves opposite; 

 flowers on axillary solitary peduncles. A species from Oregon (M. 

 moschatus, Dougl.) is remarkable for exhaling a strong odor of 

 musk. 



1. M. ringens, L, Leaves sessile, lanceolate; peduncle longer 

 than the flower; calyx-teeth lance-ovate, acuminate. 



GRINNING MIMULUS. Monkey-flower. 



Stem 12 to 18 inches high, somewhat branched. Leaves 2 to 4 or 5 inches long. 

 sharply serrate, somewhat clasping. Peduncles an inch to an inch and half in 

 length. Calyx-tube about half an inch long. Corolla pale violet-purple. the tube 

 % to y A longer than the calyx. 

 Hub. Moist, low grounds: frequent. Fl. Aug. Fr. Septem. 



2. M. alatus, Ait. Leaves petiolate, oblong-ovate; peduncle 

 shorter than the flower ; calyx-teeth rounded, mucronate. 

 WINGED MIMULUS. 



Stem 1 to 2 or 3 feet high, slightly winged on the angles, sparingly branched. 

 Leaves 2 or 3 to 5 or 6 inches long, somewhat obtusely sinuate-serrate, or dentate, 

 thin, tapering at base to a petiols, % an inch to an inch in length. Peduncles % to 

 half an inch long. Corolla, pale violet>purple. 

 Hob. Low grounds ; along rivulets : frequent. Fl. July. Fr. Sept. 



* * * Stamens only 2 perfect, posterior, included; often with rudiments of otliers. 



271. GRATTOL-A, L. 



[Latin, Gratia, grace, or favor; from its supposed medicinal virtues.] 

 Calyx 5-parted; segments narrow, nearly equal; mostly 2 bractlets 

 at the base of the calyx. Corolla tubular, sub-bilabiate. Sterile 

 filaments anterior, simple, sometimes wholly wanting. Capwle 4- 

 valved, many-seeded. Leaves opposite ; peduncles axillary, 1 -flow- 

 ered. 



1. O. Yirginlana, L. Stem terete; leaves lance-oblong, nar- 

 rowed at base, sessile; sterile filaments wanting. 

 VIRGINIAN GRATIOLA. Hedge Hyssop. / 



Annual f Stem 4 to 8 or 10 inches long, decumbent or oblique, branching from 

 the base. Leaves % of an inch to 1% inches long, varying from lance-oblong to 



