1036 LAMIACEAE 



bracts, disposed in terminal contracted panicles. Calyx very irregular, ringent : tube 

 densely bearded with white hairs in the throat and closed by them at maturity, 2-lipped : 

 lobes cuspidate, those of upper lip short and broad, those of the lower lip more elongated. 

 Corolla blue or purple : tube pubescent within, 2-lipped : upper lip 2-lobed : lower lip 

 spreading, ample, 3-lobed, the middle lobe 2-lobed. Stamens 2, with a transverse connec- 

 tive, lower branches with more or less polleniferous anther-sacs. Staminodia 2, some- 

 times 2-toothed at the apex. Nutlets subglobose. 



1. Salviastrum Texanum Scheele. Stems hirsute, commonly tufted, erect or ascend- 

 ing, 1-3 dm. tall, simple or branched : leaf-blades linear or linear-oblanceolate at the base of 

 the stem, entire or rarely few-toothed : panicles 4-15 cm. long, continuous or interrupted : 

 calyx 7-10 mm. long ; tube campanulate, the upper lip with 3 cuspidate teeth, the lower 

 lobes lanceolate, acuminate : corolla blue, 2 cm. long ; tube barely as long as the calyx ; 

 lips longer than the tube', the upper notched, the lower 3-lobed, the middle lobe reniform, 

 deeply notched : style glabrous : nutlets 2.5 mm. long, somewhat shining. 



In dry soil, Texas and New Mexico. Spring. 



23. MONARDA L. 



Annual or usually perennial caulescent herbs, with glabrous or pubescent foliage. 

 Leaves opposite : blades flat, broadest below the middle, usually toothed. Flowers in 

 dense remote or contiguous axillary clusters. Calyx tubular or nearly so, mostly pubes- 

 cent in the throat : tube 15-ribbed : lobes 5, nearly equal. Corolla white, yellow, red or 

 purple, sometimes variegated, 2-lipped : tube glabrous within, often puberulent or glandu- 

 lar without, dilated into a throat : upper lip narrow, erect or arched, entire or notched : 

 lower lip spreading, 3-lobed, the middle lobe much longer than the lateral. Anther-bear- 

 ing stamens 2 : 2 filaments rudimentary or wanting : anthers narrow, 2-celled, versatile ; 

 sacs divergent, somewhat confluent at the base. Nutlets smooth. 



Flower-clusters solitary and terminal, or rarely axillary in robust plants. 

 Leaf-blades relatively long-petioled or manifestly petioled. 



Corol la scarlet. 1. M. didyma. 



Corolla white, pink or purple. 



Leaf-blades membranous, deep green: corolla greenish or cream-colored. 2. M. Clinopodia. 

 Leaf-blades firmer, barely membranous, dull or bright green : corolla 



pink, purple or purple-red. 

 Pubescence of spreading hairs. 



Leaf-blades, all or many, fully twice as long as broad. 



Corolla, and often the bracts, pink or purplish. 3. M. fistulosa. 



Corolla, and the bracts, deep purple or purple-red. 4. M. media. 



Leaf-blades all less than twice as long as broad. 5. M. hirsutissima. 



Pubescence of very short appressed hairs. 



Leaves on the upper part of the stem with petioles less than 5 mm. 



long. 6. M. scabra. 



Leaves onthe upper part of the stem with petioles over 5 mm. long. 7. M. mollis. 

 Leaf-blades sessile or nearly so. 



Calyx pubescent at the mouth ; lobes not glandular. 8. M. Bradburiana. 



Calyx glabrous at the mouth ; lobes glandular. 9. M. Russelliaria. 



Flower-clusters axillary and terminal. 



Perennials, sometimes flowering the first year : calyx-lobes triangular to lan- 

 ceolate): corolla yellowish or rarely white. 



Bractlets plumose : calyx densely bearded in the throat ; lobes acute, copi- 

 ously pubescent. 



Calyx 9-10 mm. long ; lobes lanceolate. 10. M. Stanfieldii. 



Calyx 6-7 mm. long ; lobes triangular. 11. M. lasiodonta. 



Bractlets merely ciliate : calyx glabrous in the throat or nearly so ; lobes 



acuminate, puberulent or glabrous at maturity. 12. M. punctata. 



Annuals or biennials: calyx-lobes setaceous : corolla pink, purplish or white. 

 Calyx-tube merely puberulent, the lobes spreading : bractlets merely ciliate. 

 Bractlets typically oblong and abruptly narrowed into the terminal bris- 



tie : corolla about 2.5 cm. long. 13. M. dispersa. 



Bractlets typically lanceolate or linear-lanceolate, gradually narrowed 



into the terminal bristle : corolla about 2 cm. long. 14. M. tenuiaristata. 



Calyx-tube pubescent, the lobes erect or nearly so : bractlets pubescent on 



the back and copiously ciliate. 15. M. clinopodioides. 



1. Monarda didyma L. Perennial, glabrate or sparingly pubescent. Stems often 

 tufted, 3-12 dm. tall : leaf -blades lanceolate, oblong-lanceolate to ovate, 8-15 cm. long, 

 acuminate, serrate, rounded or cordate at the base : heads showy : bracts more or less col- 

 ored : calyx gland ular-puberulent, 7-10 mm. long ; tube slightly curved, sharply ribbed ; 

 lobes subulate, 1.5-2 mm. long, ascending : corolla scarlet, minutely pubescent, 3.5-5 cm. 

 long ; tube dilated above the middle, the lower lip oblong : nutlets 1 mm. long. 



In moist soil, especially along mountain streams, New Brunswick to Ontario and Michigan, south 

 to Georgia and Alabama. Summer and fall. OSWEGO TEA. BEE BALM. 



