WHITE GROUP 



nestle. Stem, 20 inches high or less, bearing sometimes from its 

 base thread-like runners with small tubers. July to September. 

 Rich soil, often in marshes, New England to Florida. 

 (See illustration, p. 122.) 



Water Horehound 



L. sessilifblius. — This species is much like the last, but may- 

 be known by the corolla, which is twice as long as the calyx, and 

 leaves rather broader and coarser, sometimes clasping the stem. 

 Slender runners grow from the base of the stem, which is 8 to 

 20 inches high. Summer. 



Found in the same locality as the bugle weed. Near the 

 coast, Massachusetts to Florida. 



L. americknus is taller than the last, with oblong leaves about 

 2 inches long, considerably and narrowly cut, petioled. This 

 species bears no runners, but has white flowers in whorls, like the 

 last. It is 1 to 3 feet high. 



Dittany 



Cunila origanoides, — Family, Mint. Color, white or purple 

 (see p. 344). Calyx, '5-toothed, hairy within. Corolla, 2-lipped, 

 the erect upper lip notched, the lower 3 -divided. Stamens, with 

 2 anthers protruding, standing apart. Fruit, 4 small nutlets. 

 Leaves, opposite (1 inch long or less), smooth, dotted, toothed, 

 with rounded or heart-shaped bases, sessile. August and Sep- 

 tember. 



A much-branched, stiff little plant, often with reddish 

 stems, and flowers in terminal clusters. It has a sweet, 

 minty odor, which it retains when dried. It is not hard to 

 find among the hills from New Jersey to Georgia and westward. 



Field Mint. Corn Mint 



Mentha, arvensis — Family, Mint. Color, variable, white, pink, 

 or violet (see p. 289). The genus Mentha may be called the true 

 mints. They are alL sweet-scented with the mint odor. They 

 are perennial herbs. Flowers of this species in whorls in the leaf- 

 axils, none terminal. Calyx, softly hairy. Leaves, lance-shaped 

 above, becoming broader toward the base, all finely serrate and 

 covered with fine hairs. The odor suggests pennyroyal. Summer. 



Common in rich, moist soil, widespread. 



' Common Nightshade 



Solatium nigrum* — Family, Nightshade. Color, white. Corolla, 

 wheel-shaped, 5-parted. Calyx, 5-parted. Flowers, clustered in 



