264 CLASS XIV. ORDER II. 



marshes. — July, August. — Perennial. — Resembles G. purpurea, 

 but is smaller and more fleshy. The truncate calyx is an un- 

 failing mark of distinction. 



Gerardia TENUiFOLiA. Stalked Gerardia. 



Branching, leaves linear, flowers axillary on stalks 

 longer than themselves. 



Stem erect, smooth with opposite branches. Leaves linear, 

 entire, rough, curled in drying. Flowers opposite on long fili- 

 form peduncles. Calyx teeth short, acute, separated by obtuse 

 sinuses. Corolla subcampanulate, purple, spotted inside. Sta- 

 mens woolly, anthers sagittate. — Low grounds, Cambridgeport. 

 — August, September. — Annual. — Resembles G. purpurea. 



282. MIMULUS. 

 MiMULus RiNGENS. L. Monkey Flower. 



Leaves lanceolate, acuminate, glabrous, sessile ; 

 peduncles longer than the flower. W'dld. 



A handsome plant, fond of wet soils, where it attains the 

 height of two feet and upward. Stem erect, smooth, angular. 

 Leaves opposite, closely sessile, ovate-lanceolate, serrate, acute. 

 Peduncles axillary, quadrangular, curving upward. Calyx tu- 

 bular, with five acute angles and as many pointed teeth. Co- 

 rolla twice as long as the calyx, pale purple with the palate 

 yellow, upper lip reflexed at the sides, lower lip much larger, 

 irregularly three lobed. Lower stamens longer than the upper. 

 Style clavate; stigma bifid, membranous. — July, August. — Pe- 

 rennial. 



283. CHELONE. 

 Chelone Glabra. L. Snake-Head. 



Glabrous ; leaves oval or lanceolate, unequally ser- 

 rate; flowers spiked. JSliclt. 



Found in brooks and wet ground, where it forms bunches, and 

 rises two or three feet. Stem smooth, bluntly four cornered. 

 Leaves opposite, lanceolate, acuminate, dark green and polished 

 above. Flowers in a terminal spike, a few only expanding at 



