LABIAT.E. (MINT FAMILY.) 421 



rowed at the base; the middle lobe of the spreading lower lip broad, notched 

 at the apex, contracted as if stalked at the hase, the lateral ones small, at the 

 margin of the throat. Stamens 4, ascending under the upper lip ; anthers ap- 

 proximate in pairs, 2-celled, the cells divergent. Nutlets truncate. Decum- 

 bent herbs, the lowest leaves small and long-petioled, the middle heart-shaped 

 aud doubly toothed, the Moral subtending the whorled flower-cluster; spring to 

 autumii. "(Name from \atp6s, throat, in allusion to the ringeut corolla.) 



* Annuals or biennials, low ; flowers small, purple, in few whorls or heads. 



L. AMpLEXiCAtrLE, L. Leaves rounded, deeply crenate-toothed or cut, the 

 upper ones clasping; corolla elongated, upper lip bearded, the lower spotted; 

 lateral lobes truncate. Rather common. (Nat. from Eu.) 



L. puRptiREUM, L. Leaves roundish or obloug, heart-shaped, crenate- 

 toothed, all petioled. N. Eug. and Peun. (Nat. from Eu.) 



* * Perennial, taller ; flowers larger, in several axillary whorls. 



L. ALHTM, L. Hairy; leaves ovate, heart shaped, petioled; calyx-teeth 

 verv slender, spreading; "corolla white, the tube curved upward, obliquely con- 

 tracted near the base, where there is a ring of hairs inside ; lateral lobes of lower 

 lip bearing a loug slender tooth. E. New Eng. (Nat. from Eu.) 



L. MACULATUM, L. Like the last, but leaves more frequently marked with 

 a white spot on the upper face, and flowers purplish, with the ring of hairs 

 trausverse instead of oblique. Sparingly escaped. (Adv. from Eu.) 



34. GALEC5PSIS, L. HEMP-NETTLE. 



Calyx tubular-bell-shaped, about 5-nerved, with 5 somewhat equal and spiny- 

 tipped" teeth. Corolla dilated at the throat; upper lip ovate, arched, entire ; 

 the lower 3-cleft, spreading, the lateral lobes ovate, the middle one inversely 

 heart-shaped ; palate with 2 teeth at the sinuses. Stamens 4, ascending under 

 the upper lip ; anther-cells transversely 2-va/ved : the iuner valve of each cell 

 bristly-fringed, the outer one larger and naked. Annuals, with spreading 

 branches, and several - many-flowered whorls in the axils of floral leaves which 

 are nearly like the lower ones. (Name composed of yaKti], a weasel, and o \its, re- 

 semblance, from some fancied likeness of the corolla to the head of a weasel.) 



G. TETRAHIT, L. (COMMON HEMP-NETTLE.) Stem swollen below the joints, 

 bristly-hairy ; leaves ovate, coarsely serrate ; corolla purplish or variegated, 

 about twice the length of the calyx; or, in var. GRAXDIFLOKA, 3-4 times the 

 length of the calyx, often yellowish with a purple spot on the lower lip. 

 Waste places, common. Aug., Sept. (Nat. from Eu.) 



G. LADAXUM, L. (RED H.) Stem smooth or pubescent ; leaves oblong-lan- 

 ceolate, more or less downy ; corolla red or rose-color (often spotted with yel- 

 low), much exceeding the calyx. E. New Eng., rare. Aug. (Adv. from Eu. ) 



35. STACHYS, Tourn. HEDGE-NETTLE. 



Calyx tubular-bell shaped, 5 - 10-uerved, equally 5-toothed, or the upper teeth 

 united to form an upper lip. Corolla not dilated at the throat ; upper lip 

 erect or rather spreading, often arched, entire or nearly so ; the lower usually 

 longer and spreading, 3-lobed, with the middle lobe largest and nearly entire. 

 Stamens 4, ascending under the upper lip (often reflexed on the throat after 

 flowering) ; anthers approximate in pairs. Nutlets obtuse, not truncate. 

 Whorls 2 - many-flowered, approximate in a terminal raceme or spike (whence 

 the name, from a-rdxvs, a spike). Flowers purple or rose-red, in summer. 

 * Root annual; stems decumbent, low. 



S. ARVENSIS, L. (WOUNDWORT.) Hairy ; leaves petioled, cordate-ovate, 

 obtuse, crenate; whorls 4 - 6-flowered, distant; corolla (purplish) scarcely 

 longer thau the unarmed calyx. Waste places, E. Mass. (Adv. from Eu.) 



