Part 134 (1/2)

8. Lycopus. Fertile stamens 2, and often 2 sterile filaments without anthers.

[+][+] Corolla more or less 2-lipped.

[++] Stamens distant and straight, often divergent, never convergent nor curved.

[=] Stamens 2, with or without rudiments of the upper pair.

9. Cunila. Calyx very hairy in the throat, equally 5-toothed. Corolla small.

[=][=] Stamens 4, calyx 10--13-nerved, and hairy in the throat (except n. 10).

10. Hyssopus. Calyx tubular, 15-nerved, equally 5-toothed. Stamens exserted.

11. Pycnanthemum. Calyx ovate or short-tubular, equally 5-toothed or somewhat 2-lipped. Flowers in dense heads or cl.u.s.ters.

12. Origanum. Calyx ovate-bell-shaped, 5-toothed. Spikes with large colored bracts.

13. Thymus. Calyx ovate, nodding in fruit, 2-lipped. Bracts minute; leaves very small.

[++][++] Stamens (often 2 only in n. 16) ascending or arcuate, often more or less converging (or ascending parallel under the erect upper lip in n. 14 and 15).

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. MONARDEae. 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. NEPETEae. 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.

21. Lophanthus. Stamens divergent, exserted; upper pair declined, lower ascending.

22. Cedronella. Stamens all ascending, not exceeding the lip of the corolla.

[*][*] Anthers more or less approximate in pairs; their cells divaricate or divergent; filaments ascending, not exserted.