LABIATAE. 313 



Lamium amplexicaule L. Biennial, branched from the base, sparingly 

 pubescent; stems simple, erect, 15-20 cm. high; lower leaves orbicular, coarsely 

 crenate, truncate or cordate at base, 1-2 cm. long, on petioles as long or longer; 

 upper sessile, half -clasping, rather distant; flowers sessile, in axillary and ter- 

 minal clusters; calyx pubescent, the sharp teeth nearly as long as the tube; 

 corolla purple, the lower lip spotted, 12—15 mm. long. 



A weed in cultivated ground; introduced from Europe. 



Lamium maculatum L. Perennial, sparsely pubescent; stems ascending, 

 10-30 cm. high; leaves ovate, cordate, coarsely crenate, petioled, green with 

 broad white splotches along the midrib; calyx pubescent, its lobes subulate, as 

 long as the tube; corolla 1 cm. long, purple-red, with a transverse ring of hairs 

 within. 



In waste ground; a weed introduced from Europe. 



438. STACHYS. Hedge Nettle. 



Herbs, rarely woody, not aromatic; calyx tubular-bell-shaped, 

 5-10-nerved, equally 5-toothed or the upper teeth united to form 

 an upper lip; corolla not dilated' at the throat, 2-lipped, the tube 

 about equalling the calyx; upper lip concave, often arched, 

 erect or rather spreading, entire or nearly so; lower lip usually 

 longer and spreading, 3-lobed, the middle lobe largest and nearly 

 entire; stamens 4, ascending under the upper lip, the lower pair 

 longer. 



Upper leaves sessile, the lower short-petioled. 5. palustris. 



Upper leaves not sessile, the lower long-petioled. 



Corolla-tube little longer than the calyx; calyx-lobes subulate- 



aristulate. ■S'. bitllata. 



Corolla-tube twice as long as the calyx. 



Corolla 20 mm. long; calyx glabrous or sparsely hirsute; 



leaves subcordate. 5. ciliata. 



Corolla 12 mm. long; calyx soft-villous; leaves mostly cor- 

 date. S. pubens. 



Stachys palustris L. Perennial, erect, 30-60 cm. high, soft-pubescent 

 throughout or the stem short-hairy; leaves oblong or ovate-lanceolate, mostly 

 obtuse, crenate-serrate, rounded or cordate at the nearly sessile base, 5-10 

 cm. long; spikes short-peduncled, the clusters rather close together, the lower 

 with leafy bracts; upper bracts lanceolate; calyx hairy, the tube campanulate, 

 little longer than the subulate teeth; corolla pink-purple, 1 cm. long; the upper 

 lip pubescent, the tube equalling the calyx. 



In wet places, rare in our limits; Vancouver, Washington, Suksdorf. 



Stachys bullata Benth. Pubescence hirsute or villous; stems erect, 30-70 

 cm. high; leaves ovate to oblong, mostly obtuse, subcordate or rounded at 

 base, crenate, more or less rugose, 2-5 cm. long; calyx campanulate, the subu- 

 late cuspidate teeth half as long as the tube; corolla red, 12-14 mm. long. 



In moist places, Clarke County, Washington, and southward. 



Stachys ciliata Dougl. Softly pilose to nearly glabrous; stems stout, 1-2 

 m. high, mostly simple, harshly hispid on the angles; leaves all petioled, thin, 

 ovate to oblong, acute, subcordate, coarsely crenate-dentate, 5-15 cm. long; 

 bracts leaf -like, reduced; calyx tubular, 8 mm. long, the short teeth triangular, 

 cuspidate; corolla red, white-spotted on the lower lip. 



Common in swamps; odor disagreeable. 



