MINT FAMILY 751 



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



Leaves tonietitulosc, esi)o(i;ill.\- l>eiu'a.th. 1. M. odoratissima. 

 Leaves sparingly and nunutclj jmlxTulent or glabrous. 

 Calyces and liracts s-]2 mm. long. 



Stem slout; lfa.\es suliscssile, ovate. 2. A/, sessilifolia. 



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



Calyces and bracts about U nun. long. 4. M. parvifulia. 

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



dentate. 5. M. denlata. 



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

 or less grayish i)ilose, with short hairs; leaves oblong or lance-oblong, subsessile 

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

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

 corolla about 12 mm. long. Monardella odoratissima Benth. Moimtains; 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 tlie 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, puberident, cihate-marginecl; calyx- 

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

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



5. 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 pimctate, 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 

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

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

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

 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; cal>':x 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, j)arallel. 

 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 flnely pubescent, the former often 

 velvety. 2. L. vclutinus. 



