SPECIKS AND VARIETIES. 305 



(242) Pedicularis. Lousewort. 



P. palustris : annual ; stems glabrous, erect, or in dry 

 situations decumbent at the base, much branched, one foot, or 

 in water two feet high ; leaves pinnate, with short ovate deeply- 

 cut segments, the floral ones twice pinnate ; flowers almost 

 sessile in the axils, deep purple-red, the calyx broad, with 

 two broad, short, irregularly cut or jagged lobes, and the 

 upper lip of the corolla with two minute teeth below its 

 middle. — Red Rattle. — Wet meadows and watery ditches. 

 Fl. June, July. 



P. sylvatica : stems prostrate or spreading, branching, sel- 

 dom above six inches long ; leaves pinnate, with deeply cut, 

 small segments ; flowers sessile in the upper axils, pink-red, 

 the calyx broadly oblong, with five unequal teeth, the upper lip 

 of the corolla with one minute tooth on each side, under the 

 point. — Moist heathy pastures and meadows. Fl. June, July. 



(243) Bartsia. 



B. Odontites : annual ; stems erect, branching, a foot high, 

 downy; leaves lanceolate, toothed; flowers purplish-red, in 

 numerous one-sided spikes, the upper lip of the corolla longer 

 than the lower one. — Fields and waste places. Fl. July, 

 August. 



(244) Euphrasia. Eyeb right. 



E. ofacinalis : annual ; stem 2-8 inches high, usually much 

 branched, glabrous or slightly downy; leaves small, sessile, 

 opposite, ovate, deeply toothed, the teeth of the upper ones 

 finely pointed; flowers in loose, terminal, leafy spikes, the 

 corolla white or reddish streaked with purple, and having a 



