148 MINT ORDER 



5, pink to lilac, rarely white, united into a deeply 2-lipped corolla, upper lip 

 long and narrow, lower lip flat, 3-lobed, stamens with anthers 2, ovary 

 deeply 4-parted, styles 2-cleft, fruit 4 nutlets; flowers in dense heads 

 or clusters, terminal or sometimes axillary also; leaves opposite, toothed; 

 annual or perennial. 



1. Heads usually single and terminal; corolla pink 



to rose-purple, 2.5-4 cm. long; hairy to glabrous M. fistnlosa 



2. Heads several, axillary and terminal; corolla 



white to pinkish, 1-2.5 cm. long M. citriodora 



MONARDELLA Bentham 1834 

 (Named from its resemblance to Monarda) 



Sepals 5, united into a 5-toothed tube, petals 5, purple or white, united 

 into a 2-lipped corolla, upper lip cleft, the lower 3-cleft, stamens 4, the 

 lower or outer pair longer, ovary 4-lobed, style 2-cleft ; flowers in terminal 

 heads with broad bracts ; leaves opposite, entire ; perennial. 

 Leaves lance-ovate to lance-oblong, entire, 6-12 mm. 



long ; corolla rose-purple M. parvifiora 



NEPETA Linne 1753 CATNIP, GROUND IVY 

 (Lat. name of the catnip) 



Sepals 5, united into a 5-toothed tube, petals 5, white to purplish, united 

 into a 2-lipped corolla, upper lip erect, entire or lobed, lower lip spreading, 

 3-lobed, stamens 4, lower or outer pair shorter, ovary 4-lobed, style 2-cleft ; 

 flowers in whorled clusters, usually forming terminal spikes ; leaves oppo- 

 site, toothed or somewhat cut ; perennial. 



1. Stems erect, leaves ovate to oblong; flowers 



whitish, terminal, 10-12 mm. long N.catdria 



2. Stems creeping ; leaves round ; flowers axillary, 



blue, 1.5-2.5 cm. long N. hederdcea 



PHYSOSTEGIA Bentham 1834 DRAGOON HEAD 

 (Gr. physa, bladder, stege, roof, from the enlarged calyx) 



Sepals 5, united into a 5-toothed calyx, becoming swollen in fruit, petals 

 5, rose to purple, united into a 2-lipped corolla, upper lip concave, entire, 

 lower lip spreading, 3-lobed, stamens 4, the lower or outer pair longer; 

 ovary 4-lobed, style 2-cleft ; flowers in terminal spikes ; leaves opposite, 

 toothed or entire ; perennial. 



Leaves lanceolate to lance-ovate, toothed; flowers 

 purple, 10-12 mm. long P. parvift6ra 



