MENTHACEAE (MINT FAMILY) 195 



slightly 2-lipped, 5-toothed. Upper lip of corolla 2-lobed ; lower lip 3-lobed. 

 Stamens 4, lower pair shorter ; anthers 4. (Gk. agan = much, stachys = a 

 head of wheat ; referring to the many spikes.) 



A. Leaves canescent and white beneath, glabrous and green above; spikes 25 mm. or 

 less thick. E. A. urticifolia 



AA. Leaves glabrous and green on both sides; spikes 25 mm. or more thick. E. 



A. occideutalis 



STACHYS (HEDGE NETTLE) 



Flowers purple, whorled in spikes. Calyx 5-toothed. Upper lip of 

 corolla entire or emarginate ; lower lip 3-clef t, middle lobe wider and some- 

 times 2-lobed. Stamens 4, lower 2 longer. (Gk. stachys = a spike or 

 head of wheat ; referring to the inflorescence.) 



A. Corolla tube less than ij times as long as the calyx. 



B. Plant soft hairy; corolla white or cream-colored with some purple on the lower 

 lip. W. E. S. pycnantha 



BB. Plant rather stiff-hairy; corolla light red to purple, often spotted. 

 C. Upper leaves sessile, lower short-petioled; leaves acute or acuminate. W. E. 



S. palustris (wo UNO WORT) 



CC. Upper leaves short-petioled, lower long-petioled; leaves obtuse or acute. 

 W. E. S. bullata 



AA. Corolla tube twice as long as the calyx. 

 D. Leaves tomentose beneath, thick; corolla about 20 mm. long. W. C. 



S. chamissonis 



DD. Leaves not tomentose beneath, thin. 



E. Corolla about 20 mm. long; calyx glabrous or sparingly stiff-hairy. W. C. E. 



S. ciliata 

 EE. Corolla about 12 mm. long; calyx soft-hairy. W. S. pubens 



MONARDA (BERGAMOT MINT) 



Flowers variously colored. Calyx 5-toothed. Corolla glabrous inside; 

 upper lip emarginate or entire ; lower lip 3-lobed, middle lobe larger. Anther- 

 bearing stamens 2, usually exserted; antherless stamens or their rudiments 

 2 or none. (Honor of N. Monardes, a Spanish botanist.) 



A. Leaves oblong to ovate; stamens longer than the upper lip of the corolla; corolla 

 not spotted, its upper lip straight; heads solitary, terminal. E. M. mollis 



AA. Leaves lanceolate or narrower; stamens shorter than the upper lip of the corolla; 

 corolla purple-spotted, its upper lip curved; heads many, terminal and axillary. W. 



M. punctata (HORSE MINT) 



MADRONELLA 



Leaves mostly entire. Flowers purple or red or white, bracted. Calyx 

 5-toothed. Corolla tube as long as the calyx; throat glabrous inside; 

 upper lip 2-cleft; lower lip 3-cleft, the lobes nearly equal. Stamens 4, 

 equal, or the lower 2 longer, exserted. (An anagram of Monardella, the 

 diminutive of Monarda.) 



A. Leaves white-tomentose or tomentulose beneath. 

 B. Leaves paler beneath than above, veins not prominent. C. E. M. discolor 



