526 



LAMIACEAE 



4. V. angustifolia Michx. In dry fields: Mass. to Fla., west to 



Minn., Kan. and Ark. 



Rare and local in most parts of our range except the pine-barrens. 



V. stricta Vent, and V. bracteosa Michx. have both been collected as waifs, scarcely 

 persistent; V. bonariensis L. has been recorded as a waif near New York, but not 

 recently. 



2. Lippia Houst. 

 1. L. lanceolata Michx. In moist soil: Ont. to Minn., N. J., 

 111., Kan., Fla., Tex. and Mex. Also in California. 



Known in our area only from the coastal region in Cape May Co., 

 N. J., there very local. 



LAMIACEAE 



Ovary 4-lobed, the style not basal; nutlets laterally attached. 



Corolla limb very irregular, apparently I -lipped or the ether 

 lip very short. 

 Upper lip of the corolla short, truncate. 

 Upper lip of the corolla 2-lobed, or all the lobes united into 

 the lower lip. 

 Corolla-limb nearly equally 5-lobed. 



Corolla-lobes spreading; stamens short exserted. 

 Corolla-lobes declined; stamens long exserted. 

 Ovary 4-parted, the style basal; nutlets basally attached. 

 Calyx with a protuberance on the upper side. 

 Calyx not gibbous on the upper side. 



Stamens and style very short, included in the corolla tube. 

 Stamens longer, not included in the corolla tube. 



Corolla strongly 2-lipped; lips unlike, the upper 

 concave. 

 Anther-bearing stamens 4. 



Upper pair of stamens longer than the lower. 

 Anther-sacs parallel or nearly so. 

 Anther-sacs divergent. 



Calyx tubular; plant erect. 

 Calyx unequally 5-toothed. 

 Upper pair of stamens shorter than the lower. 

 Calyx distinctly 2-lipped, closed in fruit. 

 Calyx 3-10 toothed, not 2-lipped. 

 Calyx membranous, inflated in 



fruit, faintly nerved. 11. 



Calyx neither membranous nor in- 

 flated, distinctly 5-10 

 nerved. 

 Anther-sacs transversely 2- 



valved. 

 Anther-sacs not transversely 

 2-valved, parallel or di- 

 virgent. 



1. Ajuga. 



2. Teucrium. 



3. isanthus. 



4. Trichostema. 



5. Scutellaria. 



6. Marrubium. 



7. Agastache. 



8. Nepeta. 



9. Glecoma. 



10. Prunella. 



Dracocephalum. 



12. Galeopsis. 



