MINT FAMILY 751 



Bracts thin and pale, oval to orbicular; leaves usually entire. 



Leaves tomentulose, especially beneath. 1. M. odoratissima 

 Leaves sparingly and minutely puberulent or glabrous. 

 Calyces and bracts 8-12 mm. long. 



Stem stout; leaves subsessile, ovate. 2. M. sessilifolia 



Stems slender; leaves distinctly petioled, oblong. 3. M. oblongifolia 



Calyces and bracts about 6 mm. long. 4. M. parvifolia. 

 Bracts thick, resembling the leaves, lanceolate or ovate-lanceolate, obtuse; leaves usually 



dentate. 5. M. dentata. 



1. M. odoratissima (Benth.) Greene. Stems decumbent at the base, more 

 or less grayish pilose, with short hairs; leaves oblong or lance-oblong, subsessile 

 or the lower short-petioled, 2-3 cm. long; bracts oval, densely pilose, and ciliate 

 on the margins, 8-10 mm. long; calyx-lobes narrowly lanceolate, strongly ciliate; 

 corolla about 12 mm. long. Monardella odoratissima Benth. Mountains' Ore 

 Wash. Ida. Submont. Jl-Au. 



2. M. sessilifolia Rydb. Stems stout, about' 3 dm. high, finely puberulent; 

 leaves entire, obtuse, rather pale; bracts oval, 10-12 mm. long, puberulent on 

 the back, ciliate on the margins; calyx-lobes lanceolate, about 1 mm. long; 

 corolla 12-13 mm. long, pubescent. Dry hills: s Utah. Son. 



3. M. oblongifolia Rydb. Stems 1-3 dm. high; leaf-blades oblong, 1-3 cm. 

 long, entire, obtuse; bracts pale or tinged with rose, finely puberulent, ciliate on 

 the margins, oval; calyx-teeth lanceolate, and strongly ciliate; corolla white to 

 rose-colored, 12-14 mm. long, puberulent. M . purpurea A. Nels., in part. Dry 

 mountain sides: Utah Nev. Ida. Submont. Mont. Jl-Au. 



4. M. parvifolia (Greene) Rydb. Stems many, decumbent at the base, 

 puberulent; leaf -blades ovate-lanceolate or oblong-lanceolate, obtuse, entire, 

 1-1.5 cm. long; bracts slightly rose-tinged, puberulent, ciliate-margined; calyx- 

 lobes lanceolate, not conspicuously ciliate; corolla lilac-purple, scarcely 1 cm. 

 long. Monardella parvifolia Greene. Canons: Colo. Submont. Jl-Au. 



6. M. dentata Rydb. Stems slender, light brown, about 3 dm. high; leaves 

 short-petioled; blades ovate, 1.5-2 cm. long, serrate-dentate, finely pubescent 

 and strongly punctate, obtuse, strongly veined beneath; calyx about 8 mm. long, 

 grayish pubescent; lobes lanceolate; corolla about 12 mm. long. Mountains: 

 Colo. Submont. 



25. MICROMERIA Benth. TEA-VINE, YERBA BUENA. 



Perennial herbs or somewhat shrubby plants, often with creeping stems. 

 Leaves opposite, entire or sparingly toothed, petioled. Flowers perfect, either 

 solitary or in small clusters in the axils. Calyx nearly tubular, 13-ribbed, 

 slightly 2-lipped, but the 5 teeth nearly equal. Corolla small, 2-lipped; upper 

 lip erect, usually very small; lower lip 3-lobed, with the middle lobe often notched. 

 Stamens 4, anther-bearing; anthers 2-celled, with divergent sacs. Nutlets 

 smooth. 



1. M. Chamissonis (Benth.) Greene. Stem decumbent, trailing or creep- 

 ing, 2-5 dm. long, finely puberulent; leaf -blades broadly ovate or rounded, 

 crenate or entire, 1-3 cm. long, slightly puberulent or glabrate; calyx naked in 

 the throat, 4 mm. long; corolla about 1 cm. long. M. Douglasii Benth. Woods: 

 B.C. Ida. Calif. Submont. My-Au. 



24. LYCOPUS (Tourn.) L. WATER HOREHOUND, BUGLE WEED. 



Perennial caulescent herbs, mostly odorless, often stoloniferous. Leaves op- 

 posite, entire, toothed, or pinnatifid. Flowers perfect, in remote axillary verti- 

 cils. Calyx regular or nearly so, 4- or 5-toothed. Corolla funnelform or cam- 

 panulate; lobes 4, nearly equal, or one of them broader. Anther-bearing stamens 

 2, with or without 2 additional rudimentary filaments. Anther-sacs 2, parallel. 

 Nutlets 3-angled, truncate, smooth. 



Calyx-teeth ovate, obtusish, shorter than the nutlets. 1. L. communis. 



Calyx-teeth lanceolate or subulate, acute or acuminate, longer than the nutlets. 



Stem and lowei surface of the leaves densely and finely pubescent, the former often 

 velvety. 2. L. velutinus. 



