Stevia. COMPOSIT.E. 91 



Var. SCaberrima. Leaves mostly short and sparsely denticulate or toothed, from 

 linear to oblung-lanceolate, scabrous to rongh-hispidulous aljove : bracts of the iuTolucre or 

 some of them produced into long and loose or spreading suliulate or filiform tips. — Torr. & 

 Gray, 1. u. V. xr.aberrima, Nutt. (ien. ii. l.')-t ; Ell. 1. c. — .Snntli Carolina to Florida. 



Var. Texana. stem virgate, rather taU : lower leaves large, lanceolat;^ (3 to 6 inches 

 long) ; upper ones small, linear nr subulate ; cyme naked : bracts of the involucre all point- 

 less or merely mucronate. — Torr. & Gray, 1. u., character, without name. — Pine woods, 

 Arkansas, Louisiana, and Texas. 



Var. pumila, Chapm. Iilal.ruus and hardly at all scabrous, even the leaves; these 

 small, mostly linear and entire : stem slender, a span to 18 inches high : cyme of few beads : 

 bracts of the involucre pointless. — Bot. Gazette, iii. 5. — Wet pine barrens, S. E. Florida, 

 BluJijitt, Garher. 



■H- -w- -w- -H- Leaves with revolute entire margins, not scabrous, veiule^^s, lanose beneath. 



V. LindJieimeri, Gray & Excll.-m. About a foot high, ex(essi\ ely leafy up to the coryra- 

 biform cyme, lanose-canescent, even to the obtuse and pointless bracts of the involucre: 

 lea\ es narrowly linear (Ij to 3 inches long, a line or two wide), glabrate and green above ; 

 heads all pedunculate: akenes glabrous: pappus purple. — Froc. Am. Acad. i. 46, & Fl. 

 Lindh. ii. 2\'. — Rocky hills and plains, A\'. Texas, Lindheimn\ Wri^/ht, &c. Dtrkuidur 

 collected an apparent hybrid between this most distinct species and Y. Bnhhrinii. 

 * * Outer pappus inconspicuous and rather setose than squamellate: cauline leaves few and small. 



V. oligophylla, Michx. ]\Iinutely scabrous-pubescent: stem about -2 feet high, slender, 

 bearing a few heads in a very loose naked cyme : radical leaves ample (4 to 8 inches long) 

 in a rosulate tuft, oblong ; cauline lanceolate, few and small, the uppermost reduced to 

 subulate l.iracts ; all veiny and denticidate: heads 15-.'j0-flowered : bracts of the involucre 

 subulate {m(l^tly from a broad base), loose : bristles of the pappus slender: akenes hirtellons 

 on the rilis. — Fl. ii. 94 ; DC. Prodr. v. f,± ; Torr. & Gray, Fl. ii. 57. ^f rrniula Caroliiiensis, 

 DiU. Elth. t. 261. Clirysocoma acaulis, AValt. Car. 196. — Low pine barrens, X. Carolina to 

 Florida, near the coast. — \'aries with fohage soft cinereous-pubescent: 8. Carolina, J. 

 Donnell Smith. 



Tribe II. EUPATORIACE.E, p. 50. 



4. STEVIA, Car. {Dr. Pvdrv Esteve.) — Herbs, rarel}" suffrutescent plants ; 

 with mostly opposite and triplinerved leaves, small and narrow heads usually 

 corymbosely cro\vd6d in terminal naked cymes or fascicles, and flowers white or 

 rose-purple : pappu.5 variable ; the awns when present barbellate-s(.-abrous. — 

 A large 3Iexican senus (a few species reachinii' our borders), also well developed 

 on the eastern side of South America in corresponding latitudes. — Cav. Ic. iv. 

 32, t. 354-356; Schultz Bip. in Linn. xxv. 2G8. 



* Branches and heads paniculate, loo«e: root annual. 

 S- micrantha, Lag. Pubemlent and somewhat viscid : stem slender, a foot or two high, 

 bearing short flowering branches ahmist from the base : leaves thin, ovate with subcuneate or 

 rarely subcordate base, serrate (inch long), petioled : heads pedicellate in the loose clusters, 

 3 and 4 lines long : pappus of 3 awns with short paleaceous-dilated base, or in one or two 

 flowers occasionally awnless. — Elench. Hort. JIadrid, 1815, & Xov. Gen. & Spec. 27. 

 .S'. macella, Grav, PI. AVriglit. ii. 70. — Shady cliffs, Xew Jlexico, ]Vriglif. Southern Arizona, 

 Lemmon, by which is generally meant Mr. J. G. and Mrs. S'iru Plummer Li-mmon, associates 

 in exploration. (Mex.) 



# * Heads loosely cymose-paniculate and pedunculate : root perennial. 

 S. amabilis, Lem.-viox. Stem slender and virgate, or with long virgate branches, about 2 

 feet high : leaves all alternate, hnear with narrowed base, or the h.iwest oblanceolate, entire, 

 thinnish : involucre slender, glandular-viscirl : flowers purple : pappus of 5 long awns and 

 with extremely short (broader than long) intermediate palete. — Gray, Froc. Am. Acad. 

 xix. 1. — Plains near Cave Canon, S. Arizona, Lemmon. 



