238 Class XIV. Order I. 



ous small heads, mostly terminal. Calyxes downy. Corollas 

 white, dotted with purple. Taste like pennyroyal. By fences 

 and woods. July, August. Perennial. 



246. PYCNANTHEMUM. 



PYCNANTHEMUM INCANUM. Mich, Wild Basil. 



Stem pubescent ; leaves petiolecl, oval, acuminate, 

 serrate, white-downy ; heads compound, terminal and 

 lateral ; bractes setaceous. Mich. abr. 



>Syn. CLINOPODIUM INCANUM. L. 



A white looking plant, covered with soft down. Stem one or 

 two feet high, covered with soft down, especially toward the 

 top. Leaves oval, pointed, with a few remote serratures on the 

 sides, soft and velvet-like, white underneath. Flowers on white, 

 branching footstalks, in lateral and terminal whorls or heads, 

 Bractes numerous, white, the inner ones setaceous. Corollas 

 projecting, pale, spotted with purple. Woods and mountains. 

 July, August. Perennial. 



PYCNANTHEMUM ARISTATUM. Mich. Wild Basil. 



Whitish ; leaves lance-oval, somewhat serrate, on 

 short petioles ; whorls and terminal head sessile ; 

 bractes linear, awned. Mich. abr. 



Syn. NEPETA VIRGINICA. L. 



Stem erect, a foot or more in hight, downy. Leaves opposite, 

 ovate, acuminate, slightly serrate, dotted under a magnifier, the 

 upper ones hoary with white down. Each branch has one or 

 two downy, sessile whorls, and a terminal head. Bractes acu- 

 minated with a sort of awn. Flowers small. Both these species 

 have a strong, pungent taste, much like pennyroyal. Chelsea, 

 road side. July, August. Perennial. 



247. VERBENA. 



VERBENA HASTATA. L. Common blue J^ervetin. 



Leaves lanceolate, serrate, acuminate, the lower 

 ones lobed ; spikes erect, filiform, panicled ; stamens 

 four. 



