356 



LABIATE. (MINT FAMILY. ) 



form of this, as is S. rugosa, Wood. ( The latter from Harper's Perry, Dr. Aikir\ 

 according to Wood.) 



2. S. saxatills, Riddell. Smoothish or slightly hairy; stem weak, ascend- 

 ing (6' - 1 8' long), often producing runners, branched ; leaves ovate or ovate-oblon^ 

 and mostly heart-shaped, coarsely crenate-toothed (I' -2' long), thin, obtuse; upper 

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

 Virginia, and Kentucky, and southward in the mountains. — Corolla 8" long, 

 the lateral lobes connected with the straightish upper lip. 



•i- +- Lateral lobes of the corolla small, much shorter than the decidedly arched or in- 

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

 except in No. 6. 



3. S. eanescens, 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) cremate 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 Illinois and 

 southward. — Corolla 8" long. 



4. S. SGrrata, 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 moi'e tapering below than in the last, 

 which this resembles). — Woods, Penn. to Illinois, and southward. 



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

 (1° -3° high) ; leaves rather distant, crenate, oblong-ovate, obtuse, varying to round- 

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

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

 often branched ; corolla (6"- 8" long) rather narrow, the lower lip a little shorter. 

 (S. hirsuta, Short, is a large form.) — Dry ground, S. New York to Michigan 

 and southward. 



6. S. integrildlia, L. Downy all over with a minute hoariness ; stem com- 

 monly simple (l°-2° high) ; leaves oblong-lanceolate or linear, mostly entire, obtuse, 

 very short-petioled ; raceme often branched ; corolla (V long) much enlarged above, 

 the ample lips equal in length. — Borders of thickets, from Bridgewater, Mass. 

 [Mr. Howard), to Pennsylvania and southward. 



* * Flowers (blue or violet, short-peduncled) solitary in the axils of the upper mostly 



sessile haves, which are similar to the lower ones. 



*- Corolla (2" -3" long) seldom thrice the length of the calyx; the short lips nearly 



equal in length, the upper lip concave. 



7. S. nervdsa, Pursh. Smooth, simple or branched, slender (10' -20' 

 high) ; lower leaves roundish ; the middle ones orate, tooth d, somewhat heart-shaped 

 (V long) ; the floral ovate-lanceolate, entire ; nerve-like veins prominent beneath. 

 (S. gracilis, Nutt.) — Moist thickets, New York to Illinois and southward. 



8. S. parvula, Michx. Minutely downy, dwarf (3'-C high), branched 

 and spreading ; lowest leaves round-ovate ; the others ovate or lance-ovate, obtuse, all 

 entire or nearly so, slightly heart-shaped (6" -8" long). (S. ambigua, Ntitt.) — • 

 Dry banks, W. New England to Wisconsin aud southward. May, June. 



