MINT FAMILY 145 



3-toothed, lower 2-cleft, petals 5, purple, pink or white, united into a 2-lipped 

 corolla, upper lip erect, entire or notched, lower spreading, 3-cleft, stamens 

 4 in pairs on the corolla-tube, ovary deeply 4-parted, style 2-cleft, nutlets 

 ovoid, smooth ; flowers variously clustered ; leaves entire or sparingly 

 toothed; annual or perennial. 



Flowers purple, pink or white, 5-7 mm. wide; leaves 

 ovate C. vulgdre 



DRACOCEPHALUM Linne 1753 DRAGON HEAD 

 (Gr. drakon, dragon, kephale, head, from the corolla) 



Sepals 5, united into a tubular calyx, with the upper tooth much larger 

 than the others, or 2-lipped, the upper 3 teeth more or less united, petals 5, 

 blue or purple, united into a 2-lipped corolla, upper lip erect, notched, lower 

 lip spreading, 3-lobed, stamens 4 in pairs on the corolla-tube, the upper or 

 inner pair longer, ovary deeply 4-parted, style 2-cleft, nutlets smooth, 

 ovoid ; flowers in axillary or terminal bracted clusters ; leaves toothed, en- 

 tire or cut; perennial. 



Flowers pale blue, 5-7 mm. wide; leaves lanceolate to 



oblong, sharply toothed D. parviflorum 



HEDEOMA Persoon 1807 PENNYROYAL 



(Corrupted from Gr. hedysma, sweetness) 



PI. 24, fig. 8. 



Sepals 5, united into a tubular calyx, hairy in the throat, 2-lipped or 

 nearly equally 5-toothed, petals 5, blue or purple, united into a 2-lipped 

 corolla, the upper lip erect, entire, notched or 2-lobed, the lower spreading 

 3-cleft, perfect stamens 2, sterile stamens 2, minute or none, ovary deeply 

 4-parted, style 2-cleft, nutlets ovoid, smooth; flowers in axillary clusters 

 crowded into terminal spikes or racemes ; leaves entire or scalloped ; annual 

 or perennial, strongly aromatic and pungent. 



1. Soft gray-hairy perennial ; flowers 8-12 mm. long ; 



2 lower calyx-teeth nearly twice as long as 



upper H. Drumnwndii 



2. Rough-hairy annual; flowers 5-6 mm. long; 



calyx-teeth about equal H. hispida 



LEONURUS Linne 1753 MOTHERWORT 

 (Gr. leon, lion, our a, tail) 



Sepals 5, united into a tube- or bell-shaped calyx with 5 rigid, awl- 

 shaped or bristle-like teeth, petals 5, white or pink, united into a 2-lipped 



