LABIATAE (MINT FAMILY) 703 



* * Lower anther-cell wanting; the sterile ends of the connectives mostly united. 



-^ Calyx obscurely bilabiate ; corolla 1.5-2.5 cm. long, loith prominently exserted 



tube. 



2. S. azurea Lam., var. grandiflora Benth. Ciiiereous-puberulent, 0.5-L5 

 m. high ; lower leaves lanceolate or oblong, obtuse, denticulate or serrate, 

 taperino; to a short petiole ; upper narrower, often linear, entire ; inflorescence 

 spike-like, tomentulose-sericeous ; calyx-teeth short, the broad upper lip entire : 

 corolla blue or white. {8. Pitcheri Torr.) — Minn, to Mo., westw. and southw.' 

 July-Sept. 



•«- •<- Calyx deeply bilabiate; corolla-tube hardly at all exserted. 



•w- Annual. 



3. S. Ianceaef51ia Poir. Puberulent or nearly glabrous, 1-12 dm. high ; 

 leaves lanceolate or linear-oblong., irregularly serrate or nearly entire, tapering 

 to a slender j)etiole ; inflorescence virgate-spiciform, interrupted; upper lip of 

 calyx entire., lower 2-cleft ; corolla blue, 1 cm. long, little exserted; style gla- 

 brous or nearly so. (S. lanceolata Broussonet, not Lam.) — Plains and open 

 soil, lad. (0. P. Smith) to Neb., Tex., and Ariz. ; introd. at Columbus, O. 

 (^Keller man). May-Oct. 



t-t- ++ Perennials. 



= Pedicels about equaling the fruiting calyx. 



4. S. urticif51ia L. Villous-pubescent and someiohat viscid, or glabrate, 3-6 

 dm. high ; leaves coarsely serrate, ovate, with truncate or cuneate base decurrent 

 into a winged petiole ; inflorescence racemose-spicate, of numerous distant clus- 

 ters ; calyx-lips divergent, the upper S-toothed, lower 2-cleft ; corolla blue and 

 white, 1-1.6 cm. long, twice the length of the calyx; style strongly bearded. — 

 Woodlands, Pa. to Ky., s. to Ga. and La. May-July. 



= = Pedicels much shorter than the fruiting calyx. 



5. S. SclXrea L. (Clary*.) Villous-pubescent, viscid, stout, 1 m. or less 

 high ; leaves ample, long-petioled, ovate and cordate, crenate, rugose, the floral 

 forming large bracts of the spike, tinged with white and rose-color ; corolla 

 white and bluish, rather large, the long upper lip falcate and compressed. — 

 Escaped from gardens, from Pa. southw. (Introd. from Eu.) 



6. S. VerbexAca L. Puberulent to villous, 3-6 dm. high ; leaves ovate or 

 oblong, mostly sinuate-incised or moderately pinnatifid, the lobes crenate- 

 toothed, rugose, the few cauline mostly sessile, the floral inconspicuous; spike 

 interrupted ; calyx reflexed after flowering ; corolla bluish, small, the upper lip 

 nearly straight. — Sparingly in waste places. Middle and Southern States. (Nat. 

 from Eu.) 



21. MONARDA L. Horse Mint 



Calyx 15-nerved, usually hairy in the throat. Corolla elongated, with a 

 slightly expanded throat ; lips linear or oblong, somewhat equal, the upper 

 erect, entire or slightly notched, the lower spreading, 3-lobed at the apex, its 

 lateral lobes ovate and obtuse, the middle one narrower and slightly notched. 

 Stamens elongated, ascending, inserted in the throat of the corolla. — Odorous 

 erect herbs, with entire or toothed leaves, and large attractive flowers in a few 

 verticels closely surrounded by bracts. (Dedicated to Nicolas Monardes, author 

 of many tracts upon medicinal and other useful plants, especially those of the 

 New World, in the latter half of the 16th century.) 



* Stamens and style exserted beyond the linear straight acute upper lip of the 

 corolla ; heads solitary and terminal or sometimes 2 or 3 ; leaves acutely 

 more or less serrate ; perennials. 



•^ Leaves petioled; calyx-teeth scarcely longer than the width of the tube. 



++ Glabrous or villous. 



= Calyx smooth or smoothish in the throat. 



1. M. dldyma L. (Oswkgo Tea, Bee Balm.) Stem somewhat hairy, 

 1 m. or less high, acutely -l-angled ; leaves ovate-lanceolate, acuminate, thejlnral 



