■ GO LABI AT.*:. 



Moist thickets'. June. Stem 10 to 15 iuches hitch, weak, often with a few filiform 

 tranches. Leaves about 1 inch long. }^ as wide, with 3 to 5 prominent veins un- 

 derneath, thin. Flowers small, pale-blue. 



3. S. parvula, Mieiix. Small Skullcap. 



Minutely downy, dwarf, branched and spreading; lamed leaves round-ovate, 

 ghort-petioled, the others sessile, ovate, or lanceolate, obtuse, all entire or nearly 

 so; flowers small, axillary. 



Dry banks ai:d field.*. May, June. Stem 3 to 6 inches high, simple or branched 

 from near the base and spreading, mostly purplish. Leaves b£ to % inch long, 

 sosile, dictinctly veined, purplish beneath. Flowers % to % inch long, blue, hairy. 



* * Flowers in axillary and terminal racemes. 



4. S. LATERIFLORA, L. Mad-clog Skullcap. 



Smooth; stem upright, much branched ; leaves Ianoeclate?OTate or ovate-oblong, 

 pointed, coarsely serrate, rounded at the base, petioled ; upper floral leaves scarcely 

 longer thau the calyx: flowers small, in lateral raeeaaos. 



Wet shaded places, common. Aug. Stem square. 1 to 2 feci high, very branching. 

 Leaves opposite, 2 to 3 inches lone, on petioles 1 inch long. Faomes opposite, 

 axillary, somewhat 1-sided on long stalks. Flowers small, blue, j . inch loB| 

 upper lip scarcelp arched. This plant Tag in great repute some years ago as a cure 

 for hydrophobia. 



5. S. PILOSA, Miehx. Hairy Skullcap. 



Stem erect, mostly simple, hairy; leaves remote, rhombic-ovate, crenate. obtu«e, 

 more or less hairy ; the lowest rounded and often heart shaped ; the others wedue- 

 shaped at the base ; upper floral spatulate, shorter than the hairy calyx ; raceme 

 terminal, shorts 



Open dry woods. June. JnTy. Stem 12 to 18 in?hes high, often purplish. Leaves 

 few. 1 to 2}4 inches long. ]/ 2 as wide, on petioles 1 inch long. Hacme mostly s : rn- 

 ple, few flowered, with opposite elliptical bracts. Corolla tube nearly white below, 

 blue at the summit, y, to 3 <£ inch loag. 



6. P. CANESCENS, Nutt. Canescent Skullcap. 



Stem tall, t ranched, pubescent ; leaves ovate or ovate-lanceolate, acute, crennte, 

 the upper nan owed, but the lower rounded or slightly heart-shapt d at the bare, 

 nearly smooth above, while downy beneath ; flouers in loose paniculate racemes. 



Dry open woods ard meadows. July. Stem 2 to 3 feet hLh. erect, mostly pur- 

 ple. Leaves 2 to 3 inches long, 1 to 2 -wide, often with a purple margin and purple 

 ■pats. Flowers rather numerous, % inch long, deep blue, showy, in lateral and 

 teimiual racemes. 



7. S. INTEGRIFOLIAj.L. Entirc-leavcd Skullcap. 



Whole plant downy, with a minute hoarinos: stem upright, nearly simple: 

 teaaej oblong-lanceolate or linear, mostly entire, obtuse, n mote, the upper on very 

 short petioles ; raceme often branched, leafy; bracts lanceolate. 



Moist open grounds. June. July. Stem 1 to 2 feet high, sparingly branched 

 above, grayish-green. Leaves 1 to 2 inches long, variable in width. Corolla % to 

 1 inch long, bright blue at the summit, nearly white at the base. 



8. S. serrata, Andrews. Serrate Skullcap, 



Rather slender, upright: leaves ovate, serrate, acute or pointed at both ends, all 

 tapering into the petiole, green and nearly smooth on both side.-: the floral lance- 

 elate, the upper shorter than the slightly hairy calyx; racumt moslly simple, Ioi>se, 

 leafy at the base; upper lip of the corollauncui vii. 



Woods, Southern parts of the State. July. Stem 2 to 3 feet high, smooth. 

 leave: - to 3 inches long. Flowers deep blue, % inch long. 



