14. Satureia. Calyx bell-shaped, 10-nerved, naked in the throat, equally 5-toothed.
15. Calamintha. Calyx tubular, often hairy in the throat, 13-nerved, 2-lipped. Tube of corolla straight.
16. Melissa. Calyx tubular-bell-shaped, flattish on the upper side. Corolla curved upward.
17. Hedeoma. Calyx gibbous on the lower side, hairy in the throat. Flowers loose.
Tribe III. MONARDEÆ. Stamens 2, ascending and parallel; anthers apparently or really 1-celled. Corolla strongly 2-lipped.
18. Salvia. Calyx 2-lipped. Anthers with a long connective astride the filament, bearing a linear cell at the upper end, and none or an imperfect cell on the lower.
19. Monarda. Calyx tubular and elongated, equally 5-toothed. Anthers of 2 cells confluent into one, the connective inconspicuous.
20. Blephilia. Calyx ovate-tubular, 2-lipped. Anthers as in the last.
Tribe IV. NEPETEÆ. Stamens 4, the upper (inner) pair longer than the lower, ascending or diverging. Corolla 2-lipped; the upper lip concave or arched, the lower spreading. Calyx mostly 15-nerved.
[*] Anthers not approximate in pairs; their cells parallel or nearly so.