BOTANY OF LA SALLE COUNTY. 113 



V. hastata. Blue vervain. Tall, 4 to 6 ft. leaves 

 1 lanceolate, toothed; fls. P. Roadsides. 



V. stricta. Hoary vervain. Whitish-hairy; leaves 

 obovate, serrate, sessile; spikes thick, fls. P. to 

 W. Sandy lands. 



V. bracteo sa. Prostrate hairy, leaves cut and 

 lobed. Fls. small, P. Sandy places. 



Ivippia lanceolata. Frog-fruit. Slender, creeping- 

 leaves small, oblanceolate, deep G. serrate. Fls. 

 in closely bracted heads, bluish W., X in broad. 

 PHRYMA. P. Ivop-seed. Erect, branches slender, 

 leaves ovate, coarse-toothed. Fls. P., reflexed 

 in fruit. 



Q. leptosta chya. Calyx strongly ribbed, fls. P. 

 in a long- slender spike. 



Order 82. LABIATAK. Mints. 



Mostly herbs, stems square, leaves opposite and 

 g-enerally aromatic, corolla more or less 2 lipped, 

 stamens 2 or 4 pairs, seeds 4 at bottom of calyx. 



Trichostema dichotomum. False Pennyroyal. 



Isanthus caeruleus. Much like Pennyroyal. 



Teucrium Canadense. Damp places. Germander. 



Collinso nia Canadensis. P. Horse-balm. Woods, 



MENTHA viridis, Spearment. Wet lands. 

 M. piper ita. Peppermint. 

 M. Canadensis. Wildmint. 



LYCOPUS Virg-inicus. Bug-leweed. Leaves more or 

 less lobed; flowers small, white; 12 to 20 in. 

 Wet lands. 



L. sessilifolius. L. Europeans 5th Ed. Water 



Horehound. 

 Jh. L. rubellus. 

 Jh. L. sinuatus. 



