MINT FAMILY 203 



10. MOLDAVICA (Tourn.) Adans. Dragon's Head. l. A/, parviflora. 



11. PRUNELLA L. Self-heal, Heal-all, Carpenter Weed. l. P. vulgaris. 



12. DRACOCEPHALUM (Tourn.) L. Fal.se Dragon-head. i. D. Nuttallii. 



13. LEONURUS L. Motherwort. i. L. Carciiaca. 



14. LAMIUM L. Dead Nettle, Henbit. i. L. amplexicaule. 



15. STACHYS (Tourn.) L. Hedge Nettle. 



Leaves and the angles of the stem coarsely hispid. 1. 5. asperrirna. 



Leaves and stem softly pubescent. 



Lateral lobes of the lower corolla-lip large, half as broad and three-fourths as long as 



the middle one. 2. S. ampla. 



Lateral lobes of the lower corolla-lip small, scarcely half as long as the middle one 

 Stem glabrous below; leaves short-pubescent or glabrate. 3. S. Leibergii. 



Stem pubescent thi-oughout; leaves loosely villous. 



Leaves oblong-ovate or cordate; corolla 12-15 mm. long; calyx lobes almost 

 equalling the calyx-tube. 4. S. teueriformis . 



Leaves oblong-lanceolate: corolla 10-12 mm. long; calyx-lobes decidedly 

 shorter than the calyx-tube. 5. S. scopulorum. 



16. GALEOPSIS L. Hemp Nettle. l. G. Tetrahit. 



17. PYCNOSPHACE (Benth.) Rydb. Thlstle Sage, Chia. i. P. Colmnbariae. 



18. SALVIA (Tourn.) L. Sage. 



Corolla 15-30 mm. long; tube exserted. 1. S. Pitcheri. 



Corolla 8-12 mm. long; tube included in the calyx. 2. S. lanceolata. 



19. AUDIBERTELLA Briq. Ball Sage. 



Leaf-blades oblong-spatulate; lower lip of the corolla much longer than the upper. 



1. .4. incana. 

 Leaf-blades rounded obovate-spatulate ; lower Up of the corolla slightly longer than the 

 upper. 2. A. argentea. 



20. MONARDA L. Horse Mint, Wild Bergamot, Lemon Mint. 



Heads soUtary at the ends of the stem and branches; stamens conspicuously exceeding 

 the acute upper Up of the corolla. 

 Petioles and stem more or less liirsute- villous, the latter especially so under the nodes. 

 Leaves sparingly pilose; stem and petioles hirsute-ciUate. 1. M. comata. 



Leaves softly pubescent, especiaUy below; stem, petioles, and the veins of the 

 leaves lanate. 2. M. Ratnaleyi. 



Whole plant finely strigose or puberulent. 

 Petioles seldom over 5 mm. long. 



Leaf-blades ovate-cordate ; plant pale, more or less cinereoas. 3. M. menthaefolia. 

 Leaf-blades lanceolate, with rotmded or truncate base; plant green. 



4. M. stricta. 

 Petioles 1-3 cm. long. 5. M. mollis. 



Heads or verticiUate glomerules several in the upper axils of the leaves; stamens scarcely 

 exceeding the emarginate or cleft upper lip of the corolla. 6. M. pectinata. 



21. POLIOMINTHA A. Gray. l. P. incana. 



22. HEDEOMA Pers. Mock Pennyroyal. 



Calyx-teeth about equal in length; bracts spreading or reflexed, hispid-ciliate. 



1. H. hispida. 

 Calyx-teeth of the lower lip much longer than those of the upper; bracts mostly erect, 

 cinereous- luspidulous. 

 Corolla 10-12 mm. long, more than half longer than the calyx. 2. H. camporum 



Corolla 6-8 mm. long, slightly exceeding the calyx. 



Floral leaves longer than the subtended calyces; plant 1.5-4 dm. high. 



3. H. sancta 

 Floral leaves scarcely exceeding the subtended calyces; plant 1-1.5 dm. high. 

 Leaf-blades oval or elUptic, distinctlj petioled." 4. H. Ihymoides 



Blades of the floral leaves oblong to linear. 5. H. ovata. 



23. CLINOPODIUM L. Basil. l. C. vulgarc. 



24. MADRONELLA Greene. False Horse-mint, Western Pennyroyal. 

 Mustang Mint. 



Bracts tliin and pale, oval to orbicular; leaves usually entire. 



Leaves tomentulose, especially beneath. 1. M. odoralissima. 



Leaves sparingly and minutely puberulent or glabrous. 

 Calyces and bracts 8-12 mm. long. 



Stem stout; leaves subsessile. ovate. 2. M. sessiUfolia. 



Stems slender; leaves distinctly petioled, oblong. 3. M. ohlongifi)lia 



Calyces and bracts about G mm. long. 4. M. parvifolia. 



