370 



THE KINDS OF PLANTS 



4. HE DEO MA. Mock Pennvroval. 



Low, aromatic-fragrant lierbs, with small bluish flowers in loose axillary 

 clusters, often forming terminal racemes or spikes: calyx tubular 13-nerve(l, 

 swollen on lower side, hairy in throat, 2-lipped: corolla 2-lipped, upper lip 

 er^et, flat, emarginate, the lower spreading and 3-cleft, 2 perfect stamens: 

 two shorter sterile stamens sometimes present. 



H. pulegioldes, Pers. Small annuals of pungent fragrance and taste, 

 with slender stem 6 to 12 in. tall, erect, branching, pubescent: leaves ovate 

 to oblong, about 1 in. long, few-toothed, petiolate: whorls few-flowered, the 

 corolla bluisli, pubescent. In dry fields and woods. Summer. 



5. MflNTHA. Mint. 



Low perennials: calyx with 5 similar teeth: corolla 

 nearly or quite regular, 4-cleft: stamens 4, equal: flowers 

 in heads or interrupted spikes, purplish or white. 



M. piperita, Linn. Peppermint. Straggling, 1-3 ft. 

 tall, the plant dark colored (stems purplish): leaves ovate, 

 oblong, or narrower, acute, sharply serrate: flowers light 

 purple, in thick spikes 1-3 in. long. Europe. Cultivated 

 and escaped. 



M. spic^ta, Linn. {M. viridis, Linn.). Spearmint. 

 Fig 484. Erect and sniootli, 1-2 ft., green: leaves lanceo- 

 late and sharply serrate: flowers whitish or tinted, in 

 long, interrupted spikes, Europe. Along roadsides, and 

 cultivated. 

 ir^^ M. Canadensis, Linn. Wild mint. One to 2 ft., pubes- 



»-f— ^^ cent: leaves lanceolate: flowers tinted, in whorls in the 

 axils of the leaves. Low grounds. 



484. 6. TEtrCRIUM. Germander. 



Mentha spicata. Perennial herbs (or shrubs) with small, pinkish, rather 



irregular flowers, in terminal bracted spkes (or heads) or verticillate in 

 the upper axils of the stem leaves: calyx 5-toothed, 10-nerved: corolla 

 .51obed, with 4 upper lobes oblong, somewhat equal, and turned forward, the 

 lowest lobe large, rounded: stamens 4, in 2 pairs, projecting from a deep 

 fissure between the two upper lobes of the corolla. 



T. Canad6nse, Linn. Erect, pubescent. 1-3 ft.: leaves ovate-lanceo- 

 late, irregularly serrate, short-petioled : bracts under the flowers linear- 

 lanceolate, about as l'>ng as calyx: spike long and slender, the few oMd- 

 looking purplish or pinkish flowers in crowded verticels. Damp ground. 

 Late summer. 

 7. BRUNI&LLA. Self-heal. 



Low, usually unbranched perennials without aromatic odor: calyx about 

 10-nerved, 2-lipped: corolla 2-lipped, the upper lip arched and entire, the 

 lower one 3-lobed: stamens 4, in pairs, ascending under the upper lip. 



B. vulgaris. Linn. Self-heal. Three to ten in. tall, with ovate or oblong, 



