296 LABIAT^E. (MINT FAMILY.) 



6. CALAMINTHA, Tourn., Moench. CALAMINT. 



Our species belongs to a section with flowers verticillastrate-capitate, and 

 involucrate with conspicuous setaceous-subulate rigid bracts. 



1. C. Clinopodium, Benth. Herbaceous, hirsute : leaves ovate, obtuse, 

 almost entire, petioled : heads globular, many-flowered : teeth of the narrow 

 tubular calyx and bracts very hirsute, nearly equalling the light purple narrow 

 corolla. Indigenous from the Rocky Mountains to the Great Lakes, but in- 

 troduced eastward. " Basil." 



7. HE DEO MA, Pers. AMERICAN PENNYROYAL. 



Our species belong to the section with pedicellate flowers cymulose in the 

 axils of the leaves, the uppermost of which are often bract-like : throat of the 

 calyx in fruit closed with a ring of hair. Pungently sweet-aromatic, with 

 small and whitish or purplish flowers. 



1. H. hispida, Pursh. Mostly low: leaves all similar, linear, entire, 

 thickish, nearly sessile, crowded, almost glabrous, but the margins somewhat 

 hispid-ciliate : bracts mostly equalling the calyx, rigid : calyx with teeth about 

 equal, bilabiate ; the lips about half the length of the oblong gibbous hispid 

 tube ; the teeth of the upper subulate, of the lower more aristiform or hispid, 

 equalling the bluish corolla. Extending into Dakota and southward from the 

 plains west of the Mississippi. 



2. H. Drummondi, Benth. Cinereous pubescent or puberulent, a span or 

 two high, copiously branched : leaves from oblong to linear, obtuse, subsessile or 

 narrowed into a very short petiole : subulate bracts not longer than the pedi- 

 cels : calyx hirsute or hispid, in age more or less curved, not plainly bilabiate ; 

 the subulate-setaceous teeth at length all couuivent ; the lower nearly twice the 

 length of the upper: corolla from little exserted to double the length of the calyx. 

 Prom Texas to Arizona and extending northward to Colorado and Nebraska. 



8. SALVIA, L. SAGE. 



In ours the throat of the calyx is naked : the anterior portion of the con- 

 nective deflexed, linear or gradually somewhat dilated downward, closely 

 approximate or connate, and destitute of an anther-cell : corolla blue or pur- 

 plish varying to white. 



1. S. azurea, Lam. Glabrous or puberulent, 1 to 5 feet high: lower 

 leaves lanceolate or oblong, obtuse, denticulate or serrate ; upper narrower, 

 often linear, entire : inflorescence spiciform, interrupted, sometimes thyrsoidal 

 or paniculate-branched : calyx obscurely bilabiate : corolla deep blue, with promi- 

 nently exserted tube ; upper lip very concave or galeate and pubescent ; the 

 lower longer and much larger, siuuately 3-lobed and emargiuate : style bearded 

 above. 



Var. grandiflora, Benth. Cinereous-puberulent : denser inflorescence 

 and calyx tomentulose-sericeous. S. Pitcheri, Torr. From Colorado to 

 Texas and Kansas. 



2. S. lanceolata, Willd. Puberulent or nearly glabrous, branched from 

 the base, 5 to 12 inches high : leaves lanceolate or linear-oblong, obtuse, irregu- 



