LAM1ACEAK 1031 



** Foliage of the inflorescence puberulent or puberulent-pubescent. 10. <S. salvimdes. 



b. Calyx-lobes awn-tipped. 11. S. Clingmanii. 

 B. Petioles fully % or usually % as long as the blades. 



Leaf-blades acuminate. 6-15 cm. long: species Alleghenian. 12. S. cordata. 



Leaf-blades obtuse or merely acute, 1-4 cm. long : species Floridian. 13. S. Floridana. 



1. Stachys agraria Cham. & Schl. Annual or biennial, hirsute. Stems usually 

 branched at the base, the branches erect or decumbent, 1-3 dm. long : leaf -blades oblong 

 to ovate, 1-4 cm. long, obtuse, crenate, truncate to cordate at the base : clusters few- 

 flowered : pedicels 1-2 mm. long : bracts oval or suborbicular, subulate-tipped : calyx 2-4 

 mm. long ; lobes lanceolate to ovate-lanceolate with subulate tips, shorter than the tube, 

 glabrous beyond the middle : corolla 5-6 mm. long, glabrous except the bearded upper 

 lip, the lobes of the lower lip rounded or the middle one barely emarginate : nutlets about 



1 mm. long, granular. 



In shaded ground, Texas and Mexico. Spring to fall. 



2. Stachys Drummondii Benth. Annual or biennial, softly hirsute. Stems 1-7 dm. 

 tall, solitary or tufted, usually branched above : leaf-blades ovate to oblong-ovate, 1.5-5 

 cm. long, obtuse, crenate, truncate to cordate at the base ; petioles nearly as long as the 

 blades or shorter: clusters few-flowered : pedicels 1-2 mm. long: bracts spine-tipped: 

 calyx 5-6 mm. long ; tube turbinate ; lobes lanceolate, acuminate, subulate-tipped, as long 

 as the tube or longer : corolla appressed-pubescent, 1 cm. long ; tube shorter than the 

 calyx, the upper lip notched, the lower lip twice as long as the upper, its lobes truncate or 

 retuse at the apex : nutlets nearly 2 mm. long, dull. 



In moist soil, Texas and Mexico. Spring to fall. 



3. Stachys hyssopifolia Michx. Perennial, glabrous, or hirsute at the nodes of the 

 stem. Stems erect or ascending, 2-4 dm. tall, simple or branched : leaf-blades linear or 

 nearly so, 1-5 cm. long, acute, entire or nearly so, sessile : clusters 2-6-flowered, inter- 

 rupted : pedicels very short, often almost wanting : calyx 6-7 mm. long, sometimes bristly : 

 lobes lanceolate, subulate-tipped, about as long as the tube : corolla purple, about 1 cm. 

 long ; tube about as long as the calyx ; lower lip drooping, about as long as the tube, the 

 upper lip concave and usually pubescent on the back : filaments pubescent : nutlets nearly 



2 mm. long, minutely pubescent. 



In sandy swamps, meadows and thickets, Massachusetts to Michigan and Florida. Summer. 



4. Stachys lythroides Small. Perennial, deep green. Stem 4-9 dm. tall, sparingly 

 hirsute, usually branched above : leaf-blades broadly linear or oblong-linear, 1.5-6 cm. 

 long, acute or acutish, shallowly serrate, smooth and glabrous, nearly sessile : clusters 3-6- 

 flowered : pedicels very short: calyx 6-7 mm. long; tube sparingly pubescent, becoming 

 ribbed ; lobes lanceolate, somewhat shorter than the tube, barely subulate-tipped, ciliate : 

 corolla purplish, 1 cm. long. 



In sandy soil, near Tallahassee, Florida. Summer. 



5. Stachys ambigua (A. Gray) Brit ton. Perennial, hirsute. Sterns erect, 3-10 dm. 

 tall, more or less branched : leaf-blades narrowly oblong to oblong-lanceolate, 3-6 cm. long, 

 acute, serrate, acute or truncate at the base, short-petioled : clusters 2-6-flowered, inter- 

 rupted : bracts lanceolate, rather blunt-pointed : pedicels very short or nearly wanting : calyx 

 6-8 mm. long, bristly ; lobes lanceolate, slightly subulate-tipped, as long as the tube or 

 shorter, ciliate: corolla light purple, about 1 cm. long; tube surpassing the calyx, the 

 lower lip as long as the tube, drooping, the upper lip concave, pubescent on the back : 

 filaments pubescent : nutlets over 2 mm. long, granular. 



In moist sandy soil, New Jersey to Illinois and Georgia. Summer. 



6. Stachys Nuttallii Shuttlw. Perennial, conspicuously hirsute. Stems erect, 4-11 

 dm. tall, simple : leaf-blades oblong or oblong-lanceolate, 5-10 cm. long, acuminate, ser- 

 rate-dentate, rounded or truncate at the base ; petioles 0.5-1 cm. long, hirsute : spikes in- 

 terrupted : bract surpassing the calyx, the upper ones with 3 tooth-like lobes : calyx 5 mm. 

 long, hirsute ; tube campanulate ; lobes triangular-lanceolate, acuminate, as long as the 

 tube : corolla purple, 1 cm. long ; tube saccate about the middle, surpassing the calyx, the 

 upper lip concave, hairy on back, the lower lip drooping, as long as the tube : filaments 

 minutely pubescent : nutlets about 2 mm. long. 



On mountain slopes, Virginia and Tennessee. Spring. 



7. Stachys latidens Small. Perennial, glabrous almost to the inflorescence. Stems 

 erect, 3-7 dm. tall, mostly simple, slightly rough on the angles : leaf-blades various, the 

 lower oval or ovate to oblong, 4-10 cm. long, the upper longer, narrow, oblong-elliptic to 

 lanceolate, acute or acuminate, all crenate-serrate with rather small teeth, rather abruptly 

 narrowed or subcordate at the base ; petioles 1-6 mm. long : inflorescence closely pubes- 

 cent : pedicels less than 1 mm. long : calyx often sessile, 5-6 mm. long ; tube cam- 



