376 



Minnesota Plant Life. 



false pennyroyals haye the friiit-nidimciit lobed into four sec- 

 tions, but not fairly diyided into four nutlets as in the rest of 

 the mints. The wood-saj^e is a slender herb from one to two 

 feet tall, and is to be looked for in thickets through the southern 

 part of the state and in the Red river yalley. The flowers are 

 distinctly two-lipped. The false pennyroyal is of similar lial)it, 

 six inches or more in height. The flowers are small, blue, 

 almost regular, and disposed in t1at-loppcd clusters arising from 

 the axils of the leaves. 



Skullcaps. ( )f those mints w hich separate their fruit-rudi- 

 ment into four 

 nutlets, the 

 skullcaps may 

 be known bv 

 the curious lit- 

 tle bulging pro- 

 tuberance upon 

 the back of each 

 flo\ver. Skull- 

 caps are, for the 

 most part, small 

 herbs, w i t h 

 leayes of vari- 

 ous shapes, and 

 strongly two- 

 lipped flowers. 



geneiaUN OI <l ],-,(, j-;) ciump of horse-mint (iu iniiJdlc of ijiclurc). After 



b 1 U f C O 1 O r pliotograpli by Williams. 



Four kinds occur in Minnesota. 



The rest of the mints may be di\ided into two series. In 

 one the corollas are two-lip])ed. and the up])er lip is con- 

 cave. Here arc included the catnips, the dragon's-heads. 

 the heal-alls. the false dragon's-heads, the hedge-nettles and 

 hemp-nettles, in all of which there are four stamens with pollen 

 potiches. Tlie sages, horseminls and Hlcf^hilias ha\e the same 

 kind of coroll.i but only two of the stamens produce any pollen 

 pouches. The other series of mints includes those forms in 

 which the corolla tube is nearly regular, or, if two-lipped, has 

 the upper lip flat or but \er} little concave. Here are to be 



