25G THE FLORA. 



g Cor. tube straight. Lvs. small, snbcrenate or entiie. Calaminth. Calamin'tha. 4 

 g Corolla tube curved upwards. Leaves large, coarse-crenate. Balm. Melis'sa. 



h Anthers halved, the halves widely separated, each 1-celled. Sage. Sal'via. 5 



h Anthers halved, one half present, 1 celled. Filaments toothed. Shrub. + 



Boscmanj. Kosmari'nus. 



h Anthers whole, 2-cened. Calyx subsequally 5-toothed. 



Mountain Mint. Monar'da. 6 



h Anthers whole, 2-cclled. Calyx labiate, teeth bristle-shaped. Blephil^ia. 

 k Leaves serrate. Stamens diverging. Fls. spiked. Tall Hyssop. Lophat<''thus. 

 k Lvs. serrate. Stam. all ascend. Fls. capitate. Dragonhead. Dracoceph'alum. 

 k Lvs. crenate, cordate or reniform. Corolla smooth inside. Catmint. Nep'eta. 7 

 k Leaves crenate, cordate. Corolla tube very broad, hairy inside. CEDKONiiL''LA. 



m Calyx lips toothed. Filam. forked. Fls. spiked. Self-heal. Brunel'la. 8 



m Calyx lips entire, the upper appendaged on back. Shullcap. Scutella'ria. 9 

 n Calyx 3-lobed. Anthers all distinct. Corolla large, purplish. S. Macbri'dea. 

 n Calyx 4-lobed. Anthers, upper pair, connate. White. W. Syxan'dra.10 



o Cor. tube inflated in the midst, whitish. Tall. Lion's-heart. Piiysoste'gia.II 



o Cor. tube inflated at the throat, purple. Lvs. roundish. Henhit. Lam'idm. 



o Corolla inflated in the broad concave upper lip. Jerusalem Sage. rnLOAiis. 



o Corolla not inflated, short. . . .p 



p Calyx salver-form, 10-veined. Black Iloaihound. Ballo'ta. 



p Calyx broad-campanulate, netted. Molucca Balm. Molluccel''la. 



q Lvs. serrate. Anth. open crosswise. Nuts truncate. Hemp Kittle. Galeop'sis. 



q Leaves serrate, Anth. open lengthwise. Nuts obtuse. Hedge Xettle. Stachys. 



\ Leaves lobed. Nuts truncate at top, 3-angled. MotTierwort. Leonu'rus. 



s Cor. white, upper lip flattish. Style equally bifid. H^arhound. Marru^eium. 



s Corolla white, upper lip concave. Style unequally bifid. S. Leucas. 



s Corolla scarlet, exserted. Calyx upper tooth longest. Lion's-eavs. Leono'tis. 



1. MEN'TIIA. Miiit. 



Calyx equally 5-tootlied. Corolla nearly regular, tube included in the 

 calyx, border 6-cleft, the upper lobe mostly notched. Stamens 4, equal, 

 straight, erect, distant. — Aiiomatic herbs, with the pale purple or white 

 flowers in close axillary clusters, or forming spikes. 



* Whorls of flowers remote, axillary, not in spikes. Leaves petiolate. . . .1, 2 



* Whorls of flov/prs approximate, forming terminal spikes. . . .3, 4 



1 M. Canaden^sis. Wild Mint. Plant grayish, fragrant. Lvs. acute at each end. 



2 M. arven'sis. Field M. Plant green, ill-scented. Lvs. frequently obtuse at base. 



3 M. piperi'ta. Peppermint. Leaves petiolate, ovate, serrate, smooth. Spikes 



few, thick, short. Stems 2-3f. high. 



4 M. vir'idis. Spearmint. Leaves sessile, lance-oblong, acute, serrate. Spiken 



many, slender, long. Stem.s l-2f. high. 



