162 LABIATAE 



2. A. nepetoides (L. ) Kuntze. Like the last but glabrous: bracts 

 entire, ciliate. — Rather frequent in woods and thickets throughout. 

 July-October. 



6. NEPETA L. 



Upper lip of corolla erect, the lower spreading, 3-lobed. Stamens 

 ascending under the upper lip. Anther sacs divergent. 



Flowers whitish, purple-dotted. 1. A'. Cntaria. 



Flowers blue. 2. N. hederacea. 



1. N. Cataria L. Catnip. 1°-3° high, whitish-downy : leaves ob- 

 long-cordate, crenate-dentate, petioled : corolla 6'^ long. — Common in 

 waste places. June-September. 



2. N. hederaoea (L.) B.S.P. Ground Ivy. Pubescent, trailing 

 perennial: leaves cordate, crenate, petioled : flowers blue, 7'^ long. — In 

 waste places and woods at Kansas City, Independence, Courtney and 

 Adams. Locallj' abundant. April-October. 



7. PRUNELLA L. 



Upper lip of calyx truncate, with three small teeth, the lower 2-cleft. 

 Upper lip of corolla arched, embracing the stamens. Flowers in dense 

 bracted spikes. 



1. P. vulgaris L. Self Heal. Slightly pubescent, ascending peren- 

 nial about 1° high: leaves ovate-lanceolate, petioled, slightly crenate: 

 corolla purplish, 6^' long. — Not uncommon throughout in open woods 

 and fields. June-October. 



8. PHYSOSTBGIA Benth. False Dragonhead. 



Corolla somewhat inflated above, its upper lip arched, entire, the lower 

 one somewhat spreading, .3-lobed. Anther cells parallel. 



1. P. Virginiana (L.) Benth. Obedient Plant. l°-3.l° high, gla- 

 brous : leaves oblong-lanceolate, serrate, thick, not pttioled : spikes 6'' 

 long, densely flowered : corolla 12'^ long, rose-purple. — In low woods 

 throughout, especially in the Missouri bottoms. July-September. 



9. LEONURUS L. 



Upper lip of corolla arched, entire, the lower spreading. 3-lobed. An- 

 ther cells parallel. 



1. L. Cardiaca L. Motherwort. 1°-4° high, puberuleut : leaves 

 long petioled, the lower orbicular and palmately cleft, the upper cuneate 

 at base, 3-cleft above : corolla pale purple, densely woolly. — In waste 

 places around houses. Not uncommon. May-October. 



10. LAMIUM L. 

 Upper lip of corolla arched, entire, the lower .spreading with its middle 

 lobe strongly contracted at base and its lateral lobes small. Anther cells 

 divergent. 



