LABI AT AE (MINT FAMILY) 431 



obtuse, undivided; the lower of 2 obtuse lobes: corolla twice or more longer 

 than the calyx: style bearded. Eastern Colorado, eastward and southward. 

 2. Salvia lanceolata Willd. Enum. 37. 1809. Puberulent or nearly glabrous, 

 branched from the base, 1-3 dm. high: leaves lanceolate or linear-oblong, 

 obtuse, irregularly serrate with obtuse appressed teeth or nearly entire: in- 

 florescence virgate-spiciform, interrupted; bracts very small: calyx deeply 

 bilabiate: corolla small, about 8 mm. long, hardly at all exserted; the lower 

 lip nearly twice as long as the upper: lower ends of the connective dilated. 

 Eastern Wyoming to Arizona and Texas. 



14. MONARDA L. HORSEMINT 



Odorous erect herbs with entire or toothed leaves and rather large flowers in. 

 a few whorled heads closely surrounded with bracts. Calyx elongated, tubular, 

 15-nerved, subequally 5-toothed, usually hairy in the throat. Corolla strongly 

 2-lipped; the upper lip oblong, erect, entire or notched; the lower oblong, 

 spreading, 3-lobed at the apex, middle lobe narrowest and slightly notched. 

 Stamens 2, inserted in the throat of the corolla, on elongated ascending fila- 

 ments; the divaricate anthers confluent at their junction. Nutlets ovoid, 

 smooth. 



Stamens and style surpassing the upper lip of corolla. 



Stems nearly glabrous 1. M. menthaefolia. 



Stems short-lanate, especially at the nodes . . . . . 2. M. Ramaleyi. 



Stamens not surpassing the falcate upper lip . . . . 3. M. Nuttallji. 



1. Monarda menthaefolia Graham, Edinb. N. Phil. Journ. 1829: 347. 

 Minutely appressed-pubescent, the leaves canescent beneath ; stems simple or 

 branched above, 3-7 dm. high, tinged with red or purple: leaves ovate to 

 triangular-lanceolate, 4-9 cm. long, remotely serrate-dentate, petioled: in- 

 volucral bracts leaf-like, more or less colored above; heads terminal, purple 

 to bluish: calyx white or purple bearded in throat, about 10 mm. long: corolla 

 strongly bilabiate, villous on the outside: stamens exserted with the pistil. 

 M. fistulosa L. in part; Af. stricta Wooton, Bull. Torr. Bot. Club 25: 263. 

 1898. From Manitoba to New Mexico. 



2. Monarda Ramaleyi A. Nels. Bot. Gaz. 31: 398. 1901. Very similar to 

 the preceding, but softly and lanately white-pubescent, densely so at the 

 nodes; the stems nearly or quite simple, erect or somewhat flexuous, mono- 

 cephalous, 3-6 dm. high: leaves lanceolate to narrowly ovate, subcordate or 

 truncate at base; petioles short, lanately pubescent as are also the midribs 

 of the leaves: involucral leaves ovate, scarcely purple-tinged: calyx-teeth 

 subulate, with a pubescent ring at base: corolla lavender; lower lip oblong- 

 elliptic, as long as the upper, obtuse and broadly emarginate at apex, with a 

 short, broadly linear, cucullate pubescent bidentate appendage from the notch: 

 the exserted stamens surpassed by the pistil. (M. comata Rydb. Bull. Torr. 

 Bot. Club 28: 502. 1901.) Central Colorado. 



3. Monarda Nuttallii A. Ncls. Bot. Gaz. 31: 397. 1901. Perennial from 

 short, slender, often nearly vertical rootstocks; stems slender, single or several 

 from the crowns, usually simple, 2-3 dm. high, closely puberulent: leaves ob- 

 long, short-petioled, remotely serrulate, glabrous, 2-4 cm. long, usually some 

 similar but much smaller leaves fascicled in the axils: involucral leaves sim- 

 ilar in outline, green, with thickened midrib, entire but noticeably ciliate on 

 the margin, tapering gradually into the slender awn; verticils 2-5: calyx- 

 lobes aristate and strikingly ciliate-bearded : corolla white or barely pinkish. 

 Monarda citriodora Cerv. in part. From southeastern Wyoming through 

 Colorado. 



15. HEDEOMA Pers. PENNYROYAL 



Odorous annuals or perennials, with small leaves and loose axillary clus- 

 ters of flowers often forming terminal leafy racemes. Calyx 13-nerved, ovoid 

 or tubular, gibbous on the lower side near the base, bearded in the throat. 

 Corolla 2-lipped; the upper lip erect, entire or emarginate; the lower spread- 



