DIDYXAMIA ANGIOSPERMIA 367 



Root perennial. Stem 3 to 4 or 5 feet high, obtusely 4-angled, smooth, often 

 purple, but Muish-glaucous withal, paniculately branching. Leaves 2 to 6 or 7 

 inches long, and half an inch to 3 or 4 inches wide, smooth, paler beneath, and con- 

 spicuously veined; the lower ones large, oblong-ovate, deeply pinnatifid, the seg- 

 ments acute, subdentate ; those above, or on the branches, small, narrow, lanceo- 

 late, acute, entire or sparingly toothed, all narrowed at base to distinct slender 

 petioles. Peduncles 1 fourth to near half an inch long, somewhat clavate. Calyx 

 smooth; segments lance-linear, acute, as long as the tube. Corolla yellow, as 

 large as the preceding, smoothish, hairy within. Stamens somewhat hairy ; anth- 

 ers with 2 subulate horns at base. Capsule roundish-ovoid, with a short acumin- 

 atum. 

 Hab. Rocky woodlands ; along Brandy wine : not very common. FU Aug. Fr. Oct. 



6. G. Pediculabia, L. Stem much branched, pubescent; leaves 

 lance-oblong, pinnatifid, or doubly incised-serrate, roughish-puberulent, 

 subsessile ; flowers pedunculate ; calyx-segments foliaceous, incised-den- 

 tate. Beck, Bot. p. 268. 

 Pedicularis-like Gehaudia. 



Root perennial. Stem 2 to 4 feet high, anbterete, paniculately branching, pubes 

 cent, pubescence near the summit glandular and viscid. Leaves 1 to 3 or 4 inch- 

 es long, and half an inch to 2 inches wide, pinnatifid, segments crcnately incised- 

 serrate. Peduncles 1 fourth to 3 fourths of an inch long, somewhat clavate, glan- 

 dular-villose. Calyx glandular-villose, visckl ; segments leaf-like, crenately 

 incised, longer than the tube. Corolla yellow, an inch to near an inch and half 

 long, villose externally and within. Stamens villose ; anthers with 2 subulate 

 horns at base. Style longer than the stamens, hairy at base, a little clavate at 

 summit. Capsule ovoid, somewhat acuminate and slightly compressed at apex. 



Hab. Hilly woodlands; Mica-slate hills: frequent. /Y.August. Fr. October. 



Obs. This species is abundant on our sterile Mica-slate hills ; but not very com- 

 mon where the land is good. Eight or nine additional species are enumerated in 

 the U. States. 



297. MIMULUS. L. Nutt. Gen. 537. 

 [Greek, ACroa, a monkey ; in allusion to its grinning flowers.:) 



Calyx tubular, prismatic, 5-toothed. Corolla personate ; upper lip 

 bifid, reflexed at the sides ; lower lip trifid, with the palate prominent. 

 Stigma thick, bifid. Capsule 2-celled, many-seeded. Seeds minute! 

 Herbaceous: stem prominently quadrangular; leaves opposite ; peduncles ax- 

 illary, solitary, 1-flowered. Nat. Ord. 211. Ltndl. Scrophularinb^:. 



1. M. ringews, L. Leaves sessile, lanceolate, serrate; peduncles 

 longer than the flower ; calyx-segments lance-ovate, acuminate. Beck 

 Bot. p. 264. ' 



Grinkikg Mimulus. Vulgo— Monkey-flower. 



Plant glabrous. Root perennial. Stem 12 to 18 inches high, erect, square, some- 

 what branched. Leaves 2 to 4 or 5 inches long, and half an inch to an inch wide, 

 acute, or acuminate, sharply serrate, tapering at base, closely sessile and semi- 

 amplexicaul. Peduncles an inch to an Inch and half long, opposite. Calyx 5- 

 angled ; tube about half an inch long ; segment* lance-ovate, acuminate. Corolla 

 pale violet-purple ; tube 1 fourth to 1 third longer than the calyx, pubescent with- 

 *n ; lower lip larger than the upper. Stamens included. Style about as Ions a 

 We stamens , persistent. Capsule lance-ovoid, acute, bisulcate. 



Hab. Meadows, and moistiow grounds .-frequent. FU Augusu Fr. September. 





