LABIATE. (MINT FAMILY.) 97 



on slender pedicles in a corymb or short raceme; corolla rose-purple or purple, an inch 

 or more long, or twice the length of the deeply parted calyx; anthers woolly. 



4. A. Californicum, Gr. Flowers crowded in an oblong thyrsus or raceme; calyx 

 lobes nearly equaling 'the tube of the yellowish or purplish corolla; anthers smooth or 

 nearly so. 



5. A. tuberosum, G. Flowers small, sessile in a compact cluster; yellowish. 

 BoschniaJda, .strdbilacea, Gr., if found may be known by its resemblance to a spruce cone, 3 or 4 



inches long, the flowers striped with white and brownish red; gcale-like bracts brown. 



ORDER 45. LABIATJE. 



Chiefly aromatic herbs with square stems, opposite simple leaves, and no stipules, 

 bilabiate corolla, didynamous or diandrous stamens, and a 4-lobed ovary with a single 

 style, forming seed-like nutlets in the bottom of the persistent calyx. Flowers perfect, 

 axillary. Calyx 3-5-toothed or cleft, or bilabiate. Stamens on the tubes of the corolla. 

 Style, 2-cleft at the apex; often unequally so, or one of the lobes obsolete; stigmas 

 minute. 



Tribe 1. SATUREIE.ZE. Stamens erect or ascending; the posterior part shorter 

 or wanting; anthers 2-celled, and the short lobes never far separated, sometimes partly 

 confluent but not blended. Upper lip of the corolla never hooded; all the lobes flat or 

 nearly so. 



* The small corolla about equally 4-lobed; tube naked within. 



Stamens 4, nearly equal Mentha. 1 



Stamens 2, with anthers; posterior pair sterile or wanting Lycopus. 2 



* Corolla bilabiate; no hairy ring within the base of the tube. 

 i- Calyx about equally 5 -toothed and 13-nerved; style beardless. 

 Flowers glomerate-capitate. Stamens 4, straight. 



Stamens distant and divergent Pycnanthemum. 3 



Stamens exserted Monardella. 4 



Flowers solitary or clustered in the axils. 

 Stamens 4, curving, shorter than the corolla Micromeria, 5 



-i- 4- Calyx unequally and deeply 5-cleft y mostly 15-nerved; style bearded above. 

 Stamens 4, sometimes the upper pair sterile Pogogyne. 6 



* Corolla not manifestly bilabiate; a hairy ring at the base of the tube within. 

 Shrubby. Flowers large, campanulate Sphacele. 7 



Tribe 2. MONARDE^E. Stamens only 2, fertile, the upper pair rudimentary or want- 

 ing; anthers apparently or really of a single linear-oblong cell, or of 2 cells widely sep- 

 arated upon the ends of .a filament-like connective. 



7 



