LABIATE. 103 



3. M. Canadensis, L. (WILD MINT.) Flowers in axillary 

 tr/ior/ed cluster*, the uppermost axils without flowers. Stem more 

 or less hairy, with ovate or lanceolate toothed leaves on short 

 petioles. Var. glabra'ta, Benth., is smoothish, and has a rather 

 pleasauter odour. Shady wet places. 



4. LYC'OPUS, L. WATEB HOBEHOUND. 



1. L. Virgin'icus, L. (BUGLE- WEED.) Calyx-teeth 4, bluntish. 

 Stems obtusely 4-angled, 6-18 inches high, producing slender 

 runners from the base. Leaves ovate-lanceolate, toothed. Moist 

 places. 



2. L. Europae'us, L., var. sinua'tus, Gray. Calyx-teeth 5, 

 sharp-pointed. Stem sharply 4-angled, 1-3 feet high. Leaves 

 varying from cut-toothed to pinnatifid. Wet places. 



5. HEDEO'MA, p e rs. MOCK PENNYROYAL. 



1. H. pulegioi'des, Pers. (AMERICAN PENNYROYAL.) Stem 

 5-8 inches high, branching, hairy. Leaves oblong-ovate, petioled, 

 obscurely serrate. Whorls few-flowered. Plant with a pungent 

 aromatic odour. Open woods and fields. 



2. H. his'pida, Pursh., has the leaves sessile, linear, and entire, 

 and the calyx ciliate and hispid. Not common. 



6. COL,L,INSO'NIA, L. HoBSE-BALM. 



C. Canaden'sis, L. (Ricn- WEED. STONE-ROOT.) Stem smooth 

 or nearly so, 1-3 feet high. Leaves serrate, pointed, petioled, 

 3-6 inches long. Rich woods. 



7. PYCNAJV'THEMUM, Michx. MOUNTAIN MlNT. BASIL. 

 P. lanceola'tum, Pursh. Stem 2 feet high, smoothish or 

 minutely pubescent. Leaves lanceolate or lance-linear. Heads 

 tiowny. Calyx-teeth short. Lips of the corolla very short. 

 Dry soil. 



8. SATURE'IA, L. SAVOBY. 



S. horten'sis, L. (SUMMER SAVORY.) Stem pubescent. Clus- 

 ters few-flowered. Escaped from gardens in a few localities. 



9. MONAR'DA, L. HoBSE-MlNT. 



1. M. did'yma, L. (OSWEGO TEA.) Corolla bright red, very 

 showy. The large outer bracts tinged with red, Along shaded 

 streams. 



