346 LABIATE. (MINT FAMILY.) 



motely toothed ; sterile filaments minute and slender. Atsion Creek, New Jer- 

 sey, W. M. Canby. Nearest the var. parvifolius, Miguel, from Japan : proba- 

 bly L. rubellus, Mcench, is a closely related form. 



Var. integrifdlius. Stems often producing slender runners ; leaves oblong- 

 lanceolate, varying to narrowly lanceolate (L. angustifolius, Nutt.), much acu- 

 minate at both ends (2' -4' long), slender-petioled, sharply serrate. Common 

 westward. 



Var. sinuatus. (L. sinuatus, Bentk. L. exaltatus & L. sinuatus, Eli.) 

 Much branched, smooth or smoothish ; runners short or none ; leaves mostly 

 more tapering to both ends than in the European form, varying from cut-toothed 

 to pinnatifid ; sterile filaments mostly with a globular or spatulate tip. Com- 

 mon in wet grounds. 



6. CUNILA, L. DITTANY. 



Calyx ovate-tubular, equally 5-toothed, very hairy in the throat. Corolla 2- 

 lipped; upper lip erect, flattish, mostly notched; the lower spreading, 3-cleft. 

 Stamens 2, erect, exserted, distant : no sterile filaments. Perennials, with 

 small white or purplish flowers, in corymbed cymes or clusters. (An ancient 

 Latin name, of unknown origin.) 



1. C. Mariana, L. (COMMON DITTANY.) Stems tufted, corymbosely 

 much branched (1 high) ; leaves smooth, ovate, serrate, rounded or heart-shaped 

 at the base, nearly sessile, dotted (!' long) ; cymes peduncled ; calyx striate. 

 Dry hills, S. New York to Ohio, Illinois, and south ward. July -Sept 



7. HYSSOPUS, L. HYSSOP. 



Calyx tubular, 15-nerved, equally 5-toothed, naked in the throat. Corolla 

 short, 2-lipped ; upper lip erect, flat, obscurely notched ; the lower 3-cleft, with 

 the middle lobe larger and 2-cleft. Stamens 4, exserted, diverging. A peren- 

 nial herb, with wand-like simple branches, lanceolate or linear entire leaves, and 

 blue-purple flowers in small clusters, crowded in a spike. (The ancient name.) 



1. H. OFFICINALIS, L. Roadsides, &c., sparingly escaped from gardens. 

 (Adv. from Eu.) 



8. PYCNANTHEMUM, Michx. MOUNTAIN MINT. BASIL. 



Calyx ovate-oblong or tubular, about 13-nerved, equally 5-toothed, or the 

 three upper teeth more or less united, naked in the throat. Corolla short, more 

 or less 2-lipped ; the upper lip straight, nearly flat, entire or slightly notched ; 

 the lower 3-cleft, its lobes all ovate and obtuse. Stamens 4, distant, the lower 

 pair rather longer : anther-cells parallel. Perennial upright hefbs, with a pun- 

 gent mint-like flavor, corymbosely branched above; the floral leaves often 

 whitened; the many-flowered whorls dense, crowded with bracts, and usually 

 forming terminal heads or close cymes. Corolla whitish or purplish, the lips 

 mostly dotted with purple Fl. summer and early autumn. Varies, like the 

 Mints, with the stamens exserted or included in different flowers. (Name com- 

 posed of TTVKVOS, dense, and avQepov, a blossom, from the dense inflorescence.) 



