304 LABIATJE. (MINT FAMILY.) 



ovale, UuntisJi and pointless. — Shady moist places ; common, especially north- 

 ward. Aug. — Smooth, often purplish, with small capitate clusters of very 

 small flowers. 



2. 1L. Eairopifeas, L. Stem sharply 4-augled (l°-3° high), with o? 

 without runners from the base ; leaves ovate-oblong or oblong-lanceolate, sinu- 

 ate-toothed or pinnatifid, 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) equalling or exceeding the calyx-tube. (Eu.) 

 — Includes several nominal species, among them in our district is 



Var. simiaatllS. (L. sinuatus, Benth. L. exaltatus & L. sinuatus, Ell.) 

 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. — Common in wet grounds. July, Aug. 



Var. isBtegrliolms. Stems more simple, often producing slender run- 

 ners ; leaves oblong-lanceolate, varying to narrowly lanceolate (L. angustifolius, 

 Nutt, &c.), much acuminate at both ends (2' -4' long), sharply serrate. — 

 Common westward. 



6. CUNILA, L. Dittany. 



Calyx ovate-tubular, equally 5-toothcd, 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 cordate 

 at the base, nearly sessile, dotted (1' long) ; cymes peduncled; calyx striate.— 

 Dry hills, S. New York to Ohio, Illinois, and southward. 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. — Road-sides, Michigan, &c. ; escaped from gardens. 

 (Adv. from Eu.) 



8. PfCWAITHEIlII, 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 npper 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 herbs, with a pun- 

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



