294 SUMMER FLOWERS. 



S. Verbenaca : stems hairy, erect, 12 feet high, slightly 

 branched ; leaves stalked, ovate, coarsely toothed or lobed, 

 wrinkled, the upper ones sessile, the bract-like floral leaves 

 small, heart-shaped, entire ; flowers in terminal hairy spikes, 

 small, blue ; the corolla seldom twice as long as the calyx. 

 "Waste places, roadsides. Fl. June to October. 



(220) Lycopus. GIPSYWORT. 



Ii. europseus: stems erect, branching, slightly hairy, two feet 

 high; leaves ovate-oblong, deeply toothed or pinnatifid ; flowers 

 small, numerous, in dense axillary whorls or clusters, whitish 

 with purple dots. Wet ditches and marshes. Fl. July, 

 August. 



(221) Nepeta. CATMINT. 



N. Cataria : stems erect, branching, 2-2| feet high, hoary 

 with minute down; leaves ovate-cordate, coarsely toothed; 

 flowers rather small, pale blue or nearly white, crowded in 

 compact cymes, forming short, oblong spikes at the ends of 

 the branches. Hedges, roadsides and waste places. Fl. July, 

 August. [See also p. 61.] 



(222) Mentha. MINT. 



* Calyx -throat naked. 



t Flowers in spiked whorls or terminal heads. 



M. sylvestris : stems 1-2 feet high, erect, slightly branched, 

 and, as well as the whole plant, hoary with short down ; leaves 

 closely sessile, broadly lanceolate or nar row- ovate ; flowers 

 small, numerous, pinkish, in dense cylindrical spikes, usually 

 several together, forming an oblong terminal panicle. Horse 

 Mint. Wet pastures, sides of ditches, etc. Fl. August, 

 September. 



