552 LABIAT^E audibertia 



MONARDA 



spikes. Calyx bilabiate ; its lower lip deeply 2-cleft, the upper 

 3-toothed or entire, naked within. Corolla bilabiate ; its upper 

 lip spreading, 2-lobed or emarginate, the lower lip spreading, 3- 

 lobed. the broad middle lobe emarginate. Stamens two ; filaments 

 slender, exserted, apparently simple and bearing a linear 1-celled 

 anther, or with an articulation, showing that the portion above it 

 answers to a filiform connective, the lower end of which sometimes 

 projects into a subulate point, but never showing any trace of a 

 second anther-cell : rudiments of the posterior pair of stamens 

 often present. Nutlets smooth, unchanged when wetted. 



A. incaiia Benth. Lindl. Bot. Reg. t. 1469. A much branched hoary 

 shrub 1-2 feet high , with ashy-grey shreddy bark: leaves spatulate to ob- 

 ovate, obtuse or retuse, entire, thick, an inch or less long, tapering below 

 to a slender petiole: bracts obovate or oval, the innermost spatulate, pu- 

 bescent and ciliate, tinged with rose or purple : calyx oblong-campanulate, 

 3-4 lines long, pubescent, often tinged with red, somewhat curved, its ob- 

 long lower lobes almost as long as the broad emarginate upper one: corolla 

 blue, 6-7 lines long, the tube longer than the calyx : stamens long-exserted. 

 On rocky banks and ridges, eastern Washington to California, Idaho and 

 Arizona. 



10 MONARDA L. Sp. 22. 



Perennial or annual erect herbs with dentate or serrate leaves 

 and rather large flowers in dense capitate, mostly bracteate and 

 bracteolate clusters. Calyx tubular, narrow, 15-nerved, nearly 

 or quite equally 5-toothed, mostly villous in the throat. Corolla 

 glabrous within, usually pubescent or glandular outside: the tube 

 slightly dilated above: the limb bilabiate: upper lip erect or 

 arched, emarginate or entire : lower lip spreading, 3-lobed, the 

 middle lobe longer or larger than the others. Stamens 2, ascend- 

 ing usually exserted, the posterior pair rudimentary or wanting: 

 anthers linear, versatile, 2-celled, the cells divaricate, more or less 

 confluent at the base. Nutlets ovoid, smooth. 



M. scabra Beck Am. Journ. of Sci. x, 260. M. fixtulosa var. mollis 

 Benth. Puberulent perennial: stems usually slender, l-2}4 feet high, usu- 

 ally branched : leaves thick or firm, pale, usually short-petioled, acuminate 

 or acute at the apex, rounded narrowed or cordate at base, sharply or 

 sparingly serrate, canescentor puberulent or nearly glabrous, L-3% inches 

 long, 6-12 lines wide: heads terminal, solitary: bracts green or tinged with 

 pink : calyx puberulent, often hairy at the summit, densely villous in the 

 throat, its short subulate teeth nearly erect: corolla yellowish or pink, 

 about 15 lines long, pubescent, sometimes glandular: stamens exserted. 

 On prairies and plains, Brit. Columbia to Idaho, Arizona, Texas and Neb. 



Tribe 5. Nepetex Benth. in DC.lProdr. xii, 368. Calyx usu- 

 ally 15-nerved; the upper teeth or lip commonly longer or larger. 

 Corolla distinctly bilabiate. Stamens £\ all fertile: the upper pair 

 longest. 



11 A(MSTACHK Clayt. Gronov. Fl. Virg. 88. 

 LOPHAXTJIUS Benth. 



Tall erect perennial herbs with serrate mainly ovate petiole 



