272 FLORA OF PHILADELPHIA. 



6. Verbena bracteosa Michx. M. p. 778. Waste places. Summer. 

 ; Philadelphia — Greenwich Point (Te.). Lancaster — Benton Station, 

 very rare (Ca.), Susquehanna River (Pr.). ; 



Camden — Kaighn's Point, E. Diffenbaugh (B. C.) (Ja.). 



2. LIPPIA L. 

 1. Lippia lanceolata Michx. Fog-fruit. M. p. 779. Moist soil. Summer. 

 Philadelphia — Philadelphia Navy Yard, I. Burk (Fu.). Lancaster- 

 York Furnace, Peach Bottom (Pr.). Dauphin— Above Harrisburg (Wn.). 

 Camden.— Ballast (C). Cape May— Wildwood, Anglesea. i 



Family 7. LABIATAE B. Juss. Mint Family- 

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



Corolla-limb very irregular, apparently. 1-lipped, or the other lip short; 



stamens exserted. 1. Teucrium. 



Corolla-limb nearly equally 5-lobed. 

 .,), ; ( Corolla-lobes spreading; stamens short -exserted. 2. Isanthus. 



, , Cprolla-lobes declined ; stamens Ibng-exserted. 3. Trichostema. 



Ovary 4-parted,, the style, basal.j nutlets basaUy attached,,, , , 



Calyx with a protuberance on the upper side. 4.' Scutellaria. 



Calyx n#t gibbous on the upper side;.. 



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

 " ' 5. Marrubium. 



Stamens longer, not included in the corolla-tube, 



* Corolla strongly 2-lipped; lips unlike, the upper concave. 

 \ Anther-bearing stamens 4, 

 Posterior (upper) pair of stamens longer than the anterior. 



Anther-saca parallel or nearly so. 6. Agastadhe. 



Anther-sacs divergent. ; ' 



Calyx tubular, nearly equally 5-toothed, not 2-lipped; plant 



erect. ,- j , 7. Nepeta. 



Calyx distinctly 2-lipped, or unequally 5-toothed. 



8. Glechoma. 

 Posterior pair of stamens shorter than the anterior. 1; 



Calyx distinctly 2-lipped, closed in fruit. 9. Prunejia. 



Calyx 3-10-toothed, not distinctly 2-lipped, open in frui(L 

 "" Calyx membranous, inflated in fruit, faintly nerved. 



10. Physfistegia. 

 Calyx not membranous, not inflated in fruit, distinctly 5-10- 

 nerved. 

 Aather-sacs transversely 2-valved. 11. GaUeopste.' 



Anther-sacs not transversely 2-valved, parallel or divergent. 

 Nutlets 3-sided, truncate. 



Calyx-te;eth spiny-tipped. 12. Leonwms. 



Calyx-teeth not spiny-tipped. 13. Lamium. 

 Nutlets ovoid, rounded above. 



Calyx with a spreading 5-toothed limb. 



,14. Ballota. . 

 Calyx-limb not spreading. - 15. Stachys. 



ff Anther 'bearing stamens #. 

 Connective of the anther very long, bearing 1 a perfect sac at one end 



and a rudimentary one, or none, at the other. 16. Salvia. 



Connective very short, the anther-sacs confluent. 



Calyx tubular, 15-nerved, equally 5-toothed. ' 17. Monarda. 



Calyx ovoid-tubular, 13-rierved, 2-lipped. • 18. Blephilia. 



