LABIATiE. (MINT FAMILY.) 345 



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



— Muchly 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, Elirli.). — Litchfield, Connecti- 

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



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

 the uppermost axils not flower-bearing : leaves more or less petioled, tootlied. ( The 

 species apparently run together.) 



5. M. sativa, L. (Wiiorled Mint.) Stem hairy downivards; leaves ovate; 

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

 and the next, apparently runs into both. — Eiver-banks, Lancaster, 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 Xvkos, a wolf 

 and irovs,fout, 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 ; cahjx-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. 



2. L. Europeeus, L. Stem sharply 4-angled (1°- 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. sessilifblius. Nearly smooth, producing slender leafy runners from 

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



