LABIATE- 259 



M. officinalis, L. Common Balm. 



Upright, branching-: leaves broadly ovate, crcnate-tocthed, pelioled, more or 

 \4b6 hairy ; whorls dimidiate or sccund, loo e, axillary. 



K«cnp'>d from gprdeUS, partially naturalized. Ang. Stert 1 to 2 fret high, mnro 

 or less pubescent. F lower » •white or cream color. Plant exhaling the odor of 

 lemons. 



19. PRUNELLA, Linn. Self-heal. 



Calyx tubular belt-shaped, 2-lipped; upper- Up broad and 

 flat, truncate, with 3 short teeth \ lower 2-eleft. Corolla 

 2-lipped; upper Up erect, arched, entire; lower reflexed- 

 gpreading, o- cleft; the lateral lobes oblong, the middle one 

 rounded, concave, nnely toothed; Stamens 4, ascending 

 under the upper lip ; filaments 2-toothed at the apex, the 

 lower tooth bearing the anther. — Low perennials, with nearly? 

 simple stem*, and 6 flowered clusters of molit flesh-colored flowers, 

 szsiilc in- lite axili of rounded and bract-lik-e floral leaves, imbricated 

 in a capitate spifce. 



P. VULGARIS, L. Common Self-heal Heal-all. 



Leaves ovate oblong, entire or toothed, petioled, hairy or smoothisk ; corolla 

 nearly twice as long as the calyx. 



Woods and fields, common. Aug. riant 10 to 1" -inches-high, erect or ascenr'ir.*, 

 somewhat branched, hairy, i^owers large, purple. Floral leaves coneuve, short* 

 pointed, tinged with purple. 



20. SCUTELLARIA, Linn. Scullcap. 



Lat. scutdla. a dish, in allusion to th« form of the calyx. 



Calyx bell-shaped, gibbous, 2-lipped ; the lips entire;: 

 upper one with a winged appendage on the back, deciduous 

 after flowering, Corolla 2-lipped, with an elongated tube*, 

 dilated at the throat; upper Up arched, entire or nearly so, 

 lower dilated, ccuvex. Stamens 4, ascending under the 

 upper lip; anthers approximate in pairs. — Bitter perennial" 

 herbs, with arrllari/, spiked or rucemed flowers, the short peduncles- 

 opposite, l-flowcrcd, often- l-sided t . 

 * Flowers axillary, solitary. 



1. S. GALERICULATA', L. Common Skullcap. 



Smooth or somewhat downy, mostly branching: leaves ovate-lanceolate, acute, ■ 

 serrate, roundbk. and slightly cordate at base, short-pctieled ; flowers on shent 

 pedicels. 



Wet shady places, common. Ang. Stem square; 12 to 18 inches bigtt. Leaves 

 V (, inch loug, and '•£ wide, on very short petioles. Flowers blue, pubescent, ;£to 

 1 inch long. 



2. Se NERVOSA,- Pursh: Nerval' Skullcap: 



Smooth, simple or branched, slender; lowed leaves roundish, petioled; mtddtS'- 

 ones ovate, toothed, somewhat heart-shaped, sessile; upper floral cvate-lanceokUe, ■ 

 satix') ; Ucw<rs small, opposite. 



