LABIATE.. fMINT FAMILY.) 409 



9. CUNILA, L. DiTTANv. 



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

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

 8t:imen.s 2, erect, exserted, distant; sterile filaments short, minute. — Peren- 

 nials, with small white or |)urplish tiowers, in corymbcd cymes or clusters. 

 (An ancient Latin name, of unknown origin.) 



1. C. Mariana, L. (Co.mmon' Dittany.) Stems tufted, corymhosely 

 much branched (1° liigh) ; leaves smooth, ovate, serrate, rounded or heart- 

 shaped at ba.sc, nearly sessile, dotted (T long) ; cymes pedunded; calyx stri- 

 ate. — Dry hills, southern N. Y. to S. Ind., south to Ga. and Ark. 



10. HYSSOPUS, Tonni. Hyssop. 



Calyx tubular, 15-nerved, eciually 5-tootlied, naked in the tliroat. Corolla 

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

 the middle hjbe larger and 2<deft. Stamens 4, ex.serted, diverging. — 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.) 



H. OFFICINALIS, L. — Roadsides, etc., sparingly escaped from gardens. 

 (Adv. from Eu.) 



11. PYCNANTHEMXJM, Michx. Moiintain 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 u])per 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 pungent 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 composed of irvKv6s, dense, and ivdefiov, a blossom, from the dense 

 inflorescence.) 

 * Bracts and equal cali/x-teeth aivn-tipped, ri(jid, naked, as long as the corolla ; 



flowers in rather dense mostlij terminal heads ; leaves rigid, slightly ftetioled. 



1. P. aristatum, Michx. Minutely hoary-puberulont (1-2° high); 

 leaves ovate-oblong ami oblong-lanceolate, acute, sparingly denticulate-serrate 

 (1-2' long), roundish at the base. — Pine barrens, N. J. to Fla. and La. 



Var. hyssopifblium, Cray. Leaves narrowly oblong or broadly linear, 

 nearly entire antl oI)Luse. — Va. to Fla. 



* ♦ Bracts and equal and similar cali/T-teefh not awned. 

 ■*- Leaves linear or lanceolate, nearli/ sessile, entire, ven/ numerous ; capitate 

 glomerules small and numerous, denselg ci/mose, imbricated with mam/ short 

 oppressed riqid bracts. 



2. P. lanceolatum, Pursli. Smoothish or minutelg pubesrent (2° h\^h); 

 leaves lanceolate or lance-linear, obtuse at base; hi ads downy ; bracts ovate or 

 lanceolate; calyx-teeth short and triangular. — Dry thickets, Mass. to Dak., 

 south to Ga. and Ark. 



