LABIATiE. (mint FAMILY.) 315 



short, often branched; corolla (J'-f long) rather narrow, the lower Up a little 

 shorter. (S. hlrs6ta, Short, is a large form.) — Dry open woods, &.e., S. New 

 York to Michigan and southward. June -Aug. 



6. S. integrifblia, L. Doumy 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, &c. from Bridgewater, 

 Mass. {Mr. Howard), to Pennsylvania and southward. June -Aug. 



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



sessile leaves, which are similar to tlie 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. nervosa, Parsh. Smooth, simple or branched, slender {10'-20' 

 high) ; lower leaves roundish; the middle ones ovate, toothed, somewhat heart-shaped 

 (1' long) ; the upper floral ovate-lanceolate, entire; the nerve-like veins promi- 

 nent underneath. (S. gracilis, iftitt.) — Moist thickets, New York to Illinois 

 and Kentucky. June. 



8. S. p&rvula, Michx. Minutely downy, dwarf (3' -6' high), branched 

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

 entire or nearly so, slightly heart-shaped (J'-f long). (S. ambigua, iVuft.) — 

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



■*- -t- Corolla (I' - J' long), with a slender tube : lower lip large and rather longer than 

 the somewhat arched upper lip. 



9. S. galeilculata, L. Smooth or a little downy, erect (1°- 2° high); 

 leaves ovate-lanceolate, acute, serrate, roundish and slightly heai-t-shaped at the 

 base (l'-2' long). — Wet shady places; common everywhere northward. 

 Aug. (Bu.) 



* # * Flowers smaU {blue, 3" long), in axillary, and often also in terminal one-sided 



racemes ; the lower floral leaves like the others, the upper small and bract-like. 



10. S. lateriflora, L. Smooth; stem upright, much branched (l°-2° 

 high) ; leaves lanceolate-ovate or ovate-oblong, pointed, coarsely sen-ate, round- 

 ed at the base, pctioled (2'-3' long). — Wet shaded places; common. Aug. 

 — A quack having formerly vaunted its virtues as a, remedy for hydrophobia, 

 this species bears the name of Mad-dog Skullcap. 



27. JHARRllBIVm, L. Hokehotjnd. 



Calyx tubular, 5 - 10-nerved, nearly equally 5 - 10-toothed ; the teeth more or 

 less spiny-pointed and spreading at maturity. Upper lip of the corolla erect, 

 notched; the lower spreading, 3-cleft, its middle lobe broadest. Stamens 4, 

 included in the tube of the corolla. Nutlets not tnincate. — Whitish-woolly bitter- 

 avomatic perennials, branched at the base, with rugose and crenate or cut leaves, 

 and many-flowered axillary whorls. (A name of Pliny, said to be derived from 

 the Hebrew marrob, a bitter juice.) 



1. M. vulgXee, L. (Common Hobehound.) Stems ascending; leaves 

 round-ovate, petioled, crenate-toothed ; whorls capitate; caJvx with 10 recurved 



