SYMPETALOUS DICOTYLEDONOUS ANGIOSPERMS. 25 



base, sessile, revolute, upper ones narrow. Flowers in an interrupted spike. 

 Calyx spindle-shaped, 13-15 strife, 5-tootlied, upper tootli largest. Corolla 

 tube exserted, upper lip 2-lobed, lower one 3-lobed. Stamens shorter than 

 corolla. 



Lavender, Lavandula. 



Herb, 12 to 20 inches high, from a creeping root. Leaves opposite, wrinkled, 

 sub-sessile, lanceolate acute, cut serrate. Bracts narrow, lanceolate, bristly. 

 Flowers in verticils, small, crowded, short-stalked. Calyx 5-toothed. Corolla 

 4-cleft, a little longer than calyx. Whole plant possesses a strong, agree- 

 able odor. 



Spearmint, Pennyroyal, Mentha. 



Herb, 1 to 2 feet high, hairy, purple, leafy, and branched above. Leaves 

 opposite, nearly entire, sprinkled with resinous dots. Flowers in a terminal 

 3-forked panicle, in globular compact heads. Calyx egg-shaped, obscurely 

 13-nerved, 5-toothed, throat hairy. Corolla 2-lipped, upper one notched, lower 

 longer, 3-lobed. Stamens 4, ascending and spreading. 



Marjoram, Origanum. 



Herb, 12 inches high, slender, woody branches. Leaves sessile, linear- 

 lanceolate or ovate, revolute, hoary beneath. Flowers small, purple, in ter- 

 minal globose heads. Calyx bilabiate, 10-13 strite, 5-toothed, 3 upper teeth 

 short, lower pair linear. Corolla 2-lipped, upper lip notched, loAter one 

 3-lobed, middle one sometimes larger. Stamens 4, exserted. 



Sweet Thyme, Thymus. 



Herb, 1 to 2 feet high, woody. Leaves elliptical, wrinkled, crenulate. Flowers 

 in two opposite sets of 10-12 flowers. Calyx striate, 2-lipped, upper lip 3- 

 toothed or entire, lower one bifid. Corolla 2-lipped, gaping, sometimes notched, 

 lower one 3-lobed. The cross filament has a perfect half-anther on one end 

 and a defective half-anther on the other. 



Sage, Salvia. 



Shrub, 4 feet high, much branched, hairy branchlets 4-sided and downy. 

 Leaves opposite, an inch long, narrow, linear, obtuse, entire, revolute, dark- 

 green above, smooth and shiny, woolly, veined, and silvery l)eneath. Flowers 

 axillary and terminal, blue. Calyx bell-shaped, a little flattened, 2-lipped, 

 upper lip minutely 3-toothed. Corolla gaping, downy, pale-blue, variegated 

 with purj)le and white, tube longer than calyx ; upper lip bifid, lower one slit 

 into 3 segments, middle segment larger. Four nutlets at bottom of calyx. 



Rosemary, Rosmarinus. 



Herb, 3 feet high, square, branched, hoary. Leaves cordate, crenate, 

 toothed, and petioled, hoary. Flowers in large hoary spikes, whorled, white 

 or purplish. Calyx cylindrical, 5-toothed, marked with 15 strire. Corolla 

 slender below, swollen in the throat, upper lip emarginate, lower one spread 

 ing; 3-lobed, middle lobe largest, crenate, marked with crimson dots. AVhole 

 plant giving off a pleasant odor. 



Catnip, Nepeta. 



Herb, 12 to 18 inches in height, many stems from same root, whole plant 

 hoary. Leaves ovate, rounded at base, crenate, toothed, wrinkled, and woolly. 

 P^lowers white, se.ssile, in den.se globose verticils. Calyx tubular, woolly, 

 5-10-toothed, with a corresponding luimber of stria\ Corolla 2-lip])ed. upper 

 lip erect, sometimes divided ; lower one spreading, 3-lobed ; middle lobe 

 largest and notched. 



Hoarhcund, Marrubium. 



