LXIII. LABIATE. 
32 ] 
HI. Stamens ascending, parallel, didynamous. Car. irregular; upper lip 
short or nearly wanting, shorter than the stamens. 
G. Teucridm. Cal. tubular, 5-toothed. Upper lip of cor. bipartite. 
7. Ajuga. Cal. ovate, 5-cleft. Upper lip of cor. entire or emarginate. 
IV. Stamens didynamous. Cor. obviously 2-lipped; upper lip longer than 
the stamens. 
* Cal. equal or oblique, not obviously 2-lipped. 
f Cal. 5-toothed. Stamens longer than the tube of the cor. 
f The two anterior or lower stamens the longest. 
8. Bao.ota. Cal. salver-shaped, 10-ribbed. Anther-cells spreading. 
9. Leonurus. Cal. tubular, 5 — 10-ribbed. Anther-cells nearly pa- 
rallel. 
10. Galeopsis. Cal. campanulate. Anther-cells opposite, bursting trans- 
versely by two valves. 
11. Galeobdolon. Cal. campanulate. Anthers glabrous; the cells 
diverging, bursting longitudinally. Lobes of lower lip of the cor. 
about equal. Achenes truncate. 
12. Lamium. Cal. campanulate. Anthers hirsute; the cells diverging, 
bursting longitudinally. Lateral lobes of lower lip of cor. obsolete 
or toothlike, middle one bifid. Achenes truncate. 
13. Betonica. Cal. ovate. Anther-cells parallel, bursting longitudi- 
nally. Middle lobe of lower lip of cor. nearly entire, longer than 
the lateral spreading lobes. 
14. Stachys. Cal. campanulate. Anther-cells diverging, bursting lon- 
gitudinally. Middle lobe of lower lip of cor. nearly entire, larger 
than the lateral reflexed lobes. 
ft The two posterior or upper stamens the longest. Cal. 15 -ribbed. 
15. Nepeta. Upper lip of the cor. straight, emarginate or bifid. 
ff Cal. 10-toothed. Stamens included within the tube of the cor. 
1G. Marrubium. The two anterior or lower stamens the longest. 
** Cal. obviously 2-lipped. 
f Stamens distant at the base, but converging near the apex. 
17. Calamintha. Upper lip of the cor. straight, nearly flat; tube 
straight. 
17a. Melissa. Upper lip of the cor. concave; tube curved upwards. 
ff Stamens ascending, parallel. 
18. Meuttis. Cal. campanulate, veined, spreading in fruit. 
19. Prunella. Cal. ovate, closed in fruit ; upper lip 3-toothed, lower 
bifid. 
20. Scutellaria. Cal. ovate, closed in fruit; lips entire, upper one 
with a concave scale at the back. 
