314 LABIATE. (MINT FAMILY.) 



ing away. Corolla with an elongated curved ascending tube, dilated it the 

 throat, 2-lipped ; the upper lip arched, entire or barely notched ; the lateral lobea 

 mostly connected with the upper rather than the lower lip ; the lower lobe or lip 

 spreading and convex, notched at the apex. Stamens 4, ascending under the 

 upper lip : anthers approximate in pairs, ciliate or bearded ; those of the lower 

 stamens 1-celled (halved), of the upper 2-celled and heart-shaped. Bitter pe- 

 rennial herbs, not aromatic, with axillary or else spiked or racemed flowers ; the 

 short peduncles chiefly opposite, 1 -flowered, often 1 -sided. (Name from seutdla, 

 a dish, in allusion to the form of the appendage to the fruiting calyx.) 

 * Flowers (blue) in terminal racemes ; the floral 'leaves, except the lower ones, being 



small, and reduced to bracts. 



*- Lips short, nearly equal in length ; the lateral lobes rather distinct, and almost as 

 long as the straightish or scarcely incurved upper lip : leaves on slender petioles. 



1. S. versicolor, Nutt. Sojl hairy, the hairs of the inflorescence, &c. 

 partly viscid-glandular; stem mostly erect (l-3high); leaves ovate or round' 

 ovate, chiefly heart-shaped, crenate-toothed, very veiny, rugose, the floral reduced 

 to broadly ovate entire bracts about equalling the glandular-hairy calyx ; ra- 

 cemes mostly simple. River-banks, &c., Penn. to Wisconsin and southward. 

 July. Corolla |' long, with a slender tube, below whitish, the lower lip purple- 

 spotted ; the upper deep blue ; the lateral lobes belonging as much to the lower 

 as to the upper lip. S. saxatilis, var. ? pilosior, Benth., is probably a smaller 

 form of this, as is S. rugosa, Wood. (Harper's Ferry, Aikin, Wood.) 



2. S. saxatilis, Eiddell. Smoothishor slightly hairy ; stem weak, ascend- 

 ing (6' -18' long), often producing runners, branched; leaves ovate or ovate-oblong 

 and mostly heart-shaped, coarsely crenate-toothed (l'-2' long),*Am, obtuse; upper 

 bracts oblong or ovate, small; racemes loose. Moist shaded banks, S. Ohio, 

 Virginia, and Kentucky, and southward in the mountains. June, July. Co- 

 rolla f long, the lateral lobes connected with the straightish upper lip. 



- - lateral lobes of the corolla small, much shorter than the decidedly arched or 

 incurved upper lip, and connected with it : stem erect : leaves moderately petioled, 

 except in No. 6. 



3. S. canescens, Nutt. Stem branched (2 -4 high), above, with the 

 panicled many-flowered racemes, flowers, and the lower surface of the ovate or lance- 

 ovate acute (at the base acute, obtuse, or cordate) crenate leaves, whitish with fine 

 soft down, often becoming rather glabrous ; bracts oblong or lanceolate ; upper 

 lip of the corolla shorter than the lower. Rich ground, Penn. to Michigan and 

 southward. July. Corolla f ' long. 



4. S serrata, Andrews. Green and nearly glabrous ; stem rather simple 

 (l-3 high), with single loosely-flowered racemes; leaves serrate, acuminate at 

 both ends, ovate or ovate-oblong ; calyx, &c. somewhat hairy ; lips of the corolla 

 equal in length (corolla 1' long, the tube more tapering below than in the last, 

 which this resembles). Woods, Maryland, Illinois, and southward. July. 



5. S. pilosa, Michx. Pubescent with spreading hairs; stem nearly sim- 

 ple (l-3 high) ; leaves railier distant, crenate, oblong-ovate, obtuse, varying to 

 roundish-ovate, the lower abrupt or heart-shaped at the base and long-petioled, 

 the upper on short margined petioles, veiny ; bracts oblong-spatulate ; racemes 



