10(4). Functional stamens 2, ascending and parallel, the upper pair wanting or 

 rudimentary; anthers mostly appearing to be 1 -celled; corolla 

 strongly 2-lipped (11) 



10. Functional stamens 2 or (if 4) with the upper pair shorter than the lower 



pair; anthers always 2-celled; corolla scarcely 2-lipped, the upper 

 lip neither galeate nor curved (12) 



11(10). Connective of the anther elongated, usually but not always bearing a 

 perfect sac at one end and a rudimentary sac at the other end, very 

 rarely 2-celled 10. Salvia 



11. Connective of the anther short; anther sacs confluent 11. Monarda 



12(10). Flowers in loose terminal racemes or panicles, slender-pedicelled 



12. Perilla 



12. Flowers in axillary whorls or clusters that sometimes form terminal spikelike 



racemes or panicles (13) 



13(12). Corolla regular or essentially so, with 4 or 5 equal lobes (14) 



13. Corolla more or less 2-lipped; upper corolla lip erect, entire or emarginate 



(15) 



14(13). Fertile stamens 2; flowers white, clustered in the axils of reduced upper 

 leaves; foliage scarcely aromatic 13. Lycopus 



14. Fertile stamens 4; flowers purplish to bluish or white, spicate or clustered 



in upper axils; foliage strongly aromatic 14. Mentha 



15(13). Stamens distant and straight, often spreading-divergent, never connivent 

 nor curved 15. Pycnanthemum 



15. Stamens ascending or arched, commonly converging or ascending parallel 



under upper lip of corolla (16) 



16(15). Calyx with 5 subequal lobes, scarcely 2-lipped; leaves more or less 

 orbicular 16. Micromeria 



16. Calyx distinctly 2-lipped, the lobes unequal; leaves of a linear type 



17. Satureja 



1. Teucrium L. Germander 



Perennial herbs to 15 dm. high, with simple serrate leaves and the flowers in 

 terminal slender spikes or smaller annual or perennial plants with at least some 

 of the leaves pinnatifid and with the flowers in the axils of the reduced upper 

 leaves; calyx saccate, toothed or deeply 5-lohed; corolla pinkish to bluish or 

 pallid, the upper lip very short and deeply notched, the lower lip conspicuous and 

 spreading, with small lateral lobes; stamens 4, paired, exserted from the deep cleft 

 between the 2 upper lobes of the corolla; cocci roughened. 



About 300 species in temperate and tropical regions of both hemispheres. 



1. Leaf blades toothed, pubescent on lower surface; flowers in a terminal brac- 

 teate spike; corolla lavender with dark spots 1. T. canadense. 



1. Leaf blades noticeably lobed (especially the lower ones), glabrous; flowers in 

 the axils of the reduced upper leaves; corolla white with pink to 

 purple markings toward the base 2. T. cubense. 



1. Teucrium canadense L. American germander, wood sage. Fig. 657. 



Perennial herb as much as 1 m. tall, with creeping rootstocks and erect stems 

 that branch chiefly in the inflorescence, the latter usually silvery with closely 

 appressed minute hairs, sometimes pubescent with fine appressed hairs, curled 

 hairs or hirsute with elongate spreading or deflexed glandular or eglandular hairs, 

 rarely glabrate; leaves prevailingly 6-10 cm. long and 2-4 cm. broad, narrowly 

 elliptic to oval or ovate, acute to acuminate or rarely obtuse at apex, generally 

 narrowed below the middle but sometimes rounded at the base or even subtruncate, 



1408 



