LABIAT^E. (MINT FAMILY.) 345 



usually the pedicels hairy. The common form has the stems hairy downwards. 

 Muddy shores, Nanticoke River, Delaware, W. M. Canby. Var. GLABRATA, 

 Benth., a nearly smooth form, differing from Peppermint in the rounder leaves 

 and spike of 2 or 3 rounded heads (M. citrata, Ehrh.). Litchfield, Connecti- 

 cut, Dr. T. F. Allen. (Nat. from Eu.) 

 * * * Inflorescence axillary, the globular whorls or clusters all in the axils of the leaves, 



the uppermost axils not flowei'-bearing : leaves more or less petioled, toothed. ( The 



species apparently run together.) 



5. M. SAT!VA, L. (WHORLED MINT.) Stem hairy downwards ; leaves ovate ; 

 calyx oblong-cylindrical with very slender teeth. Intermediate between the last 

 and the next, apparently runs into both. River-banks, N. Jersey &Penn., Prof. 

 Porter. (Adv. from Eu.) 



6. M. ARVENSIS, L. (CORN MINT.) Lower and smaller-leaved than the 

 last; calyx bell-shaped, the teeth short and broader. Moist fields: rare. (Adv. 

 from Eu.) 



7. M. Canadensis, L. (WILD MINT.) Leaves varying from ovate-oblong 

 to lanceolate, tapering to both ends ; calyx oblong-bell-shaped, the teeth rather 

 short ; hairs on the stem when present not conspicuously reflexed. The com- 

 moner form is more or less hairy, and has nearly the odor of Pennyroyal. 

 Var. GLABRATA, Benth. (M. borealis, Michx.) is smoothish, "the scent pleas- 

 anter, more like that of Monarda." (Prof. Porter.) Shady wet places, New 

 England to Kentucky and northward. 



5. LYCOPUS, L. WATER HOREHOUND. 



Calyx bell-shaped, 4-5-toothed, naked in the throat. Corolla bell-shaped, 

 scarcely longer than the calyx, nearly equally 4-lobed. Stamens 2, distant; the 

 upper pair either sterile rudiments or wanting. Nutlets with thickened margins. 

 Perennial low herbs, resembling Mints, with sharply toothed or pinnatifid 

 leaves, the floral ones similar and much longer than the dense axillary whorls of 

 small mostly white flowers; in summer. (Name compounded of \VKOS, a wolf, 

 and novsjfoot, from some fancied likeness in the leaves.) 



1. L. Virginicus, L. (BUGLE-WEED.) Stem obtusely 4-angled (6' -18' 

 high), producing long and slender runners from the base ; leaves oblong or ovate- 

 lanceolate, toothed, entire towards the base, short-petioled ; calyx-teeth 4, ovate, 

 bluntish and pointless. Shady moist places: common, especially northward. 

 Smooth, often purplish, with small capitate clusters of very small flowers. The 

 depauperate, few-flowered form, often tuberiferous at base (L. uniflorus, Michx., 

 and L. pumilus, Vahl), Lake Superior and northward. Plant very bitter. 



2. L. EUTOpJBUS, L. Stem sharply 4-angled(l- 3 high); leaves ovate- 

 oblong or oblong-lanceolate, sinuate-toothed or pinnatifid, usually more or less 

 petioled ; whorls many-flowered ; calyx-teeth 5, triangular-lanceolate, tapering to a 

 rigid very sharp point ; nutlets (smooth or glandular-roughened at the top) equal- 

 ling or exceeding the calyx-tube. (Eu.) Includes several nominal species (the 

 sterile filaments variable) ; among them in our district is 



Var. sessilif61ius. Nearly smooth, producing slender leafy runners from 

 the decumbent base ; leaves oblong-ovate, closely sessile or almost clasping, re- 



