filaments exceeding the corolla throat; nutlets slightly shorter than the sepals to 

 longer, somewhat irregular across the truncate tip. 



Bogs, wet woodlands and swampy places in Okla. (Waterfall), June-Sept.; 

 Nfld. to B.C., s. to N.C., O., Ind., 111., la., Okla., Mont, and Ore. 



3. Lycopus asper Greene. Fig. 673. 



Stem strict, rather stout, simple or slightly forking, to about 5 dm. high, 

 from elongate tubers, the internodes spreading-pubescent with long multicellular 

 hairs; leaves sessile, lanceolate to oblong-lanceolate, acute at apex, dark-green, 

 mostly longer than the internodes, appressed to spreading-ascending, scabrous, the 

 larger ones 5-8 cm. long with 6 to 12 sharp teeth on each side; bracts lanceolate, 

 nearly equaling the glomerules, dilated; calyx teeth triangular to ovate, acuminate, 

 2-3 mm. long, minutely ciliolate; corolla tube scarcely exceeding the calyx; cocci 

 about 2 mm. long and 1.7 mm. broad, with entire angles and oblique non- 

 tuberculate summit. L. lucidus of auth. 



In wet meadows, marshes and wet shores, in mud of seepage, alluvial soils of 

 floodplains, in the Tex. Panhandle, N.M. (San Juan and Valencia cos.) and (?) 

 Ariz., June-Sept.; from Alas, to Calif., e. to Mich., 111., Mo., Tex. and N. M. 



4. Lycopus americanus Muhl. Fig. 674. 



Stem erect, slender, to about 9 dm. high, glabrous or very sparingly appressed- 

 pubescent with dark hairs, freely stoloniferous, without tubers; leaves petioled, 

 to about 1 dm. long and 3 cm. wide; lower primary leaves incised or pinnatifid 

 (especially at base), glabrous or minutely pubescent on veins beneath, glabrous 

 to scabrous-puncticulate above, lanceolate to narrowly ovate or oval; upper leaves 

 lance-attenuate, sinuate to sharply toothed; bracts short; calyx teeth with long 

 subulate tips; corolla white, the tubes scarcely or barely longer than the calyx 

 teeth, the filaments exserted; cocci 1-1.5 mm. long, 0.6-1 mm. broad, with entire 

 or barely undulate angles, the dorsal angular face relatively soft and dark, the 

 summit entire. L. sinuatus L. 



Low grounds, soggy meadows, marshes, in water of and on edge of ponds, 

 streams and ditches, wet soils about lakes and in canyons in n.-cen. Tex. and the 

 Panhandle, Okla. (widespread), N. M. (Colfax, San Juan, San Miguel, Taos, 

 Valencia, Bernalillo, and Grant cos.) and Ariz. (Navajo Co.) July-Nov.; from 

 Nfld. to B.C., s. to Fla., Ala., Miss., Tex., N.M.. Ariz, and Calif. 



Those plants whose leaves are scabrous-puncticulate on the upper surface are 

 segregated as var. scabrifoUiis Fern. 



5. Lycopus rubellus Moench. Water-horehound. Fig. 675. 



Stem arising from slender stolons and rhizomes to about 12 dm. high; leaves 

 elliptic to elliptic-ovate or -lanceolate, petioled, at most sharply serrate or serrate- 

 dentate, acuminate, to about 15 cm. long and 5 cm. wide; bracts minute; calyx 

 teeth acuminate and sharp-pointed, scarcely subulate-tipped; corolla white, often 

 with purple spots, 3.5-4 mm. long, twice as long as calyx; sterile filaments 

 mostly included; nutlets 1-1.6 mm. long, about 1 mm. broad, firm throughout, the 

 low dorsal angle rounded and the lateral ones often undulate, the summit 

 definitely so. 



In marshes, swamps, bogs, meadows, ditches, seepage areas and shallow water 

 in Okla. (Washington, Creek, Pushmataha and McCurtain cos.) and e. Tex. 

 (Marion, Tyler, Newton, Jasper and Hardin cos.), Aug.-Dec; from Fla. to Tex., 

 n. to N.E., N.Y., O., Mich., 111., Mo. and Okla. 



We have two variants in this species that are separated as follows: 



1440 



