LABIATE. (MINT FAMILY.) 313 



fruiting calyx roundish, the teeth short and acute. Near Wilmington, North 

 Carolina. Introduced. Stem 1- 2 high. Corolla white. 



3. M. piperita, L. Smooth ; stem creeping at the base, ascending, 

 branched ; leaves ovate-oblong, acute, sharply serrate, rounded at the base, 

 short-petioled ; spikes slender, interrupted ; bracts mostly longer than the 

 whorls, the upper ones linear ; calyx-teeth hairy. Low ground. Introduced. 

 July - Sept. Stems 1 - 2 high. Flowers white or blue. 



4. LYCOPUS, L. 



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

 shaped, exserted, equally 4-cleft. Fertile stamens 2, exserted ; the upper pair 

 sterile, included or wanting : anther-cells parallel. Style 2-cleft at the apex. 

 Nutlets 3-angled, truncate at the apex, narrowed at the base. Marsh or aquatic 

 herbs, with long runners at the base. Leaves mostly toothed or pinnatih'd. 

 Whorls dense, axillary. Flowers small, sessile. 



1. L. Virginicus, L. Stem smoothish ; leaves ovate-lanceolate, toothed- 

 serrate, acute or acuminate at each end, roughened above ; calyx-teeth 4, ovate, 

 obtuse; corolla small, exserted ; sterile stamens minute. Ponds and ditches, 

 Florida? and northward. Sept. Stem l-2 high. Leaves l'-2' long. 

 Flowers white. 



2. L. sinuatUS, Ell. Stem smooth, much branched ; leaves pinnatifid- 

 toothed, ovate-oblong, tapering at each end ; the upper ones narrower ; calyx- 

 teeth 5, lanceolate-subulate, acute ; corolla twice as long as the calyx ; sterile 

 stamens minute or none. (L. exaltatus, Pursh.) 



Var. intermedius. Closely pubescent or tomentose ; stem simple or 

 branched, very leafy ; leaves ovate-lanceolate, acuminate at each end, coarsely 

 serrate, pale beneath ; whorls dense ; calyx-teeth subulate, pubescent, nearly as 

 long as the corolla ; seeds pitted. 



Var. angustifolius, Benth. (L. angustifolius, Ell.) Pubescent ; stem 

 simple or sparingly branched ; leaves sessile, lanceolate or linear, toothed- 

 serrate or entire, resinous-dotted ; calyx-teeth subulate. Ponds and ditches, 

 Tlorida to Mississippi, and northward. Aug. - Oct. Stem 2 -4 high. 

 Leaves 2' -4' long. Flowers white. 



5. CUNILA, L. DITTANY. 



Calyx tubular, 10-nerved, equally 5-toothed, hairy in the throat. Corolla 

 2-lipped ; the upper lip notched or entire, the lower 3-cleft. Stamens 2, distant, 

 exserted: anther-cells parallel. Style 2-cleft at the apex. Nutlets smooth. 

 Perennial herbs. Flowers small, in corymbose or crowded whorls. 



1. C. Mariana, L. Smooth; stem slender, much branched ; leaves ovate, 

 serrate, acute, rounded or cordate at the base, subsessile ; cymes loose, axillary 

 and terminal, peduncled, mostly shorter than the leaves, corymbose ; calyx- 

 teeth lanceolate, acute. Dry soil along the mountains, Georgia and northward. 

 July -Sept. Stem 1 high. Leaves 1' long. Flowers purple. 

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