labiatjE. (mint family.) 311 



Tribe II. SATURKIE^. — Stamens 2 or 4, straight and spreading, or connivent undei 

 the upper lip ; the upiier pair shorter, or abortive. Anthera 2-ceIIed. Nutlets smooth, 

 distiuct. 



« Corolla-lobes nearly equal. Stamens distant. 



S. MENTHA. Fertile stamens 4. Whorls spiked. Nutlets obtuse. 



4. LYCOPUS Fertile stamens 2. Whorls axillary. Nutlets truncate. 



* * Corolla 2-lipped. Stamens straight, distant, spreading. 



5. CUNILA. Stamens 2. Calyx equally 6 toothed, hairy in. the throat. 



6. PYCNANTHKMUM. Stamens 4. Calyx 2 lipped or 5-toothed, naked in the throat. 



7. COLLINSONIA. Stamens 2 or 4. Calyx 2'lipped, the upper lip truncate, 3-toothed. Co* 



rolla fimbriate. 

 V II * Corolla 2-lipped. Stamens ascending and fipreading above, or connivent under the 



upper lip. 

 ■K Fertile stamens 2 , the two sterile ones small. 



8. HEDEOMA. Calyx 13-nerved, 2 lipped; the lower Up hispid. 



*■ ■•- Fertile stamens 4. Calyx 13-nerved. 



9. MICROMERIA. Calyx-teeth nearly equal. Flowers solitary. Low herb."?. 



10. CALAMINTHA. Calyx 2-lipped. Flowers in cymes. Anthers awnless. Chiefly shrubs. 



11. DICERANDRA. Calyx 2-Upped. Anther-cells awned Branching annuals. 



12. MELISSA. Calyx tubular-bell-Bhaped, flattened on the upper side. Tube of the corolla 



curved upward. 

 Tribe III. SIOWARDE.^. — Stamens 2, ascending and parallel. Anthers 1-ceIled, or 

 with 2 confluent cells. Calyx and corolla 2-lipped. Nutlets smooth, distinct. 



13. SALVIA. Connective of the anther elongated, oblique ; the upper cell fertile ; the lower 



abortive or wanting. 



14. MONARDA. Anther 2-celled, the cells confluent. Calyx-teeth equal. 



15. BLBPIIILIA. Anther 2-celled, the cells confluent. Calyx 2-lipped; the upper teeth awned. 

 Tribe IV. NEPETE.^. — Stamens 4, the upper pair longer Nutlets smooth, distinct. 



16. LOPHANTHUS. Upper stamens curving downward ; the lower ascending. Anther-cells 



parallel. 



17. NEPETA. Stamens all ascending. Anther-cells diverging, 



18. CEDRONELLA. Stamens all ascending. Anther-cells parallel. 



Tribe Y. STACHYDE.3B. —Stamens 4; the lower pair longer, parallel, ascending 

 Upper lip of the corolla concave or keeled. Calyx 3 - 10-toothed or lobed. Nutlets 

 smooth, distinct. 



* Calyx 2-lipped, closed in fruit. 

 1&. BRUNELLA. Lips of the calyx toothed. Flowers 3 in a cluster, ppiked. 



20. SCUTELLARIA. Lips of the calyx entire ; the upper one appendagcd. Flowers slnglei 



opposite. 



# # Calyx not 2-lipped ; the teeth or lobes spineless. 



21. MACBRIDEA. Calyx 8-lobed. Flowers capitate, in crowded 4-flowered whorls. 



22. PIIYSOSTEGIA. Calyx 6-toothed. Flowers opposite, spiked. Nutlets 3 angled. 



23. LAMIUM. Calyx 6-toothed. Flowers in axillary cymes. Nutlets truncated. 



* « # Calyx not 2-lipped ; the teeth rigid or spiny. 



24. MARRUBIUM. Calyx-teeth 10, nearly equal. Stamens included. Herbs woolly. 



25. LEONOTIS. Calyx-teeth 8 - 10. very unequal. Stamens exserted. Whorls globose. 



26. LEONURUS. Calyx-teeth 5. Nutlets obtuse, not truncate. Leaves incisely lobed- 



27. STACIIYS. Calyx-teeth 5. Nutlets truncate, sharp-angled. Leaves undivided. 



Tribe TI. A JUGE.^* — Stamens 4, ascending, parallel, exserted. Nutlets reticulated 

 and pitted, their bases partially united within. 



« Stamens barely exserted, nearly equal. 

 2S. I3ANTHUS. Lobes of the corolla and calyx nearly equal. Peduncles 1 - 8-flower»d. 



