LABIATE. 277 



yellow. It contains an assential oil, which is sometimes em- 

 ployed medicinally. See Med. Recorder, ii. 294. Raf. Med. Bot. 

 ii. 38. Horse Mint. 



*** Calyx bilabiate; upper lip shorter Udentate; lower tridentate. Flow- 

 ers in whorls. BLEPHILIA. Raf. 



6. M. hirsuta Pursh : whole plant hairy ; leaves on long petioles, 

 ovate, acuminate serrate, hirsute ; flowers small, in whorls ; bracts 

 short, oblong, acuminate ; calyx 2-lipped ; upper lip of two short 

 acuminate teeth ; lower of three almost bristleform awns. M. ciliata 

 Mich. 



HAB. Low woods. N. Y. to Car. W. to Miss. June, July. 

 2f. Stem 2 3 feet high, branched. Whorls 4 or 5, on the up- 

 per part of each branch. Corol small, pale blue, dotted with 

 purple. 



PVw .-^i;'' .-;' \. ./, -."," 



12. CUNILA. Linn. 



Calyx cylindrical, 10-striate, 5-toothed. Corol ringent, 

 with the upper lip erect, flat and emarginate. Stamens 2- 

 sterile ; the 2 fertile ones with the style exseuted nearly twice 

 the length of the corol. Stigma unequally bifid. 



Diandria. Monogynia. 



1. C. mariana Linn. : leaves ovate, serrate ; corymb axillary and 

 terminal, dichotomous. Ziziphora mariana R. 4* *> 



HAB. On rocks. N. Y. to Car. W. to Arkansa. July, Aug. 

 U. Stem 12 feet high, angled, much branched, purple. 

 Leaves opposite, sessile, nearly cordate. Flowers pale red. 



Dittany. 



2. C. glabella Mich. : smooth ; stem surculose ; radicle leaves near- 

 ly oval ; stem leaves oblong-linear, all entire ; flowers axillary, mostly 

 solitary, on long peduncles. Hedeoma glabra Pers. Ziziphora glabella 



R. 4. fir. 



HAB. Limestone rocks. Niagara Falls. W. to Miss. Aug. II. 

 Stem 8 10 inches high, branched below. Corol violet, much 

 longer than the calyx. Dr. Houghton has found this species at 

 the Falls of St. Anthony. 



Div. V. NEPETEJE. 

 13. GALEOPSIS. Linn. 



Calyx 5-cleft, awned. Upper lip of the corol vaulted, 

 subcrenate ; lower lip with 3 unequal lobes, having 2 teeth 

 on its upper side. .. Didynamia. Gymnospermia. 



1. G. ladanum Linn. : stem hairy, not swollen below the joints ; 

 leaves on short petioles, lanceolate, more or less serrate, hairy; flowers 

 whorled ; upper lip of the corol slightly crenate. 



HAB. Waste grounds. N. S. July. .Stem a foot high, 

 34 



