TETRADYNAMIA SILICULOSA. 393 



984. EUCHROMA. Painted-cup. 



& wccinea : leaves and colored bracts pinnatifidly 3-cleft; segment* 

 Jwaricatc ; calyx 2-clefl, nearly equal with the corolla; segments 

 retase and emarginate. 



HAB. Wet meadows. May June, % ; stem 8 12 inches high ; 

 bracts scarl. ; cor. yellow. 



285. MELAMPYRUM. Cow-wheat. 



M. lincare : leaves linear-lanceolate ; the floral ones with setaceous 



teeth at the base ; flowers axillary. 

 HAB. Woods. June July, <v) ; stem 810 in. high, bran. ; Jl.- 



leaves oval-Ian. 



286. OROBANCHE. Broom-rape. 



O. americana : stem very simple ; imbricate with oval-lanceolate 

 scales ; spike terminal, smooth ; corolla recurved, with the stamens 

 exserted. 



HAB. Woods. July, 7J. ; stem 46 in. high, very thick, br.-yelL, 

 leafless, scaly ; fl. brad. 



O. unijlora: stem very short; peduncles 2, elongated, scapiform, 1- 

 flowcred, naked; scales smooth, concave; lobes of the corolla ob- 

 long-oval, with a pubescent colored margin. 



HAB. Woods. May July, 1|_; pedunc. 46 in. long, subpubes. ; 

 fl. recurv., bl.-wh. 



287. EPIPHAGUS. Beech-drops. 



E. virginiana. 



HAB. Beech woods. Sept. '2J. ; leafless, branched, smooth ; 8 12 

 in. high ; Jl. distant ; abort, ones larger, purplish. 



TETRADYNAMIA. 

 SILICULOSA. 



Genera. 



288. THLASPI. Silicle compressed, emarginate, many-seeded; valves 

 carinate, (often winged ;) filam. without teeth, distinct ; cal. equal at 

 the base. 



289. DRAB A. Silicle entire, oval or oblong ; valves flat or convex , 



