Sabbatia. GENTIANACE.E. 115 



H Calyx-tube prominently 5-costate, nearly or quite enclosing the retuse capsule: corolla 1J to 

 2 inches in diameter. 



S. campestris, JNutt. A span or two high, divergently branched above: leaves ovate 

 with subcordate clasping- base, somewhat 3-5-nerved, one-half to an inch long, those of the 

 branches lanceolate : peduncles about 2 inches long : calyx-lobes narrowly linear-lanceo- 

 late, acute, half to t hive-fourths inch long, equalling the broad lobes of the lilac- 

 colored corolla ; angles of its campanulate tube below the sinuses acute and wing-like in 

 flower, thickened in fruit: style very deeply 2-cleft. Trans. Am. Phil. Soc. n. ser. v. 197; 

 Hook. Bot. Mag. t. 5013. S.formosa, Buckley in Proc. Acad. Philad. 1802, 7. Prairies of 

 Arkansas and Texas. Very showy. 



-t -f Calyx-tube verv short, girding the base of the capsule, not conspicuously costate : plants 

 loosely paniculate-branching : corolla bright rose-color or pink, with white varieties, or the last 

 white. 



S. stellaris, Pursh. Leaves rather fleshy, from oblong to lanceolate and the uppermost 

 narrowly linear: calyx-lobes subulate-linear, from half to nearly the full length of the 

 corolla-lobes: eye or star of the corolla conspicuous : style nearly 2-parted. Fl. i. 137. 

 S. (/radii's, Ell. 1. c., not Salisb. Chironia stellata, Muhl. Cat. Brackish marshes, coast of 

 Massachusetts to Florida. Appears to pass into the next. 



S. gracilis, Salisb. Stems more slender: branches and peduncles filiform : leaves linear 

 and the uppermost filiform or setaceous : calyx-lobes very slender and as long as those of 

 the corolla (6 to 9 lines long): style 2-cleft to the middle. Parad. Loud. t. 32 ; Pursh, 

 1. c. ; Griseb. in DC. 1. c. 49; Chapm. Fl. 354. Chironia yracilis, Michx. 1. c. C. campanu- 

 lata, L. Spec. 190?, but not from "Canada." Brackish marshes and river banks, Xan- 

 tucket (an ambiguous form), and New Jersey to Florida and Louisiana, extending inland to 

 the mountains of Georgia. (Cuba.) 



Var. grand.ifl.6ra. Stem more rigid and erect : lower leaves fleshy : flower much 

 larger; the corolla-lobes from three-fourths to nearly a full inch long. Coast of E. Flor- 

 ida, Leavenworth, Buckley, Palmer, &c. 



S. Elliottii, Steud. Effusely and paniculately much branched, a foot or two high: 

 leaves small; the lower cauline (half inch or less long) thickish, from obovate to lanceo- 

 late; upper narrowly linear and rather longer; those of the filiform flowering branches 

 setaceous-subulate : flowers numerous : lobes of the calyx slender-subulate, about twice 

 the length of the tube, very much shorter than the spatulate-oblong or oblanceolate lobes 

 of the (apparently always white) corolla; the corolla-lobes only 5 or 6 lines long: style 

 2-parted. Chapm. Fl. 534. S. paniculnta, Ell. Sk. i. 282 (ex char.), not Pursh. Swertia 

 difformis, L. Spec. i. 220 ? Pine barrens on the coast ( S. Virginia ? ) S. Carolina to Florida, 

 (Bahamas.) 



2. Flowers S-12-merons, most commonly 9-11-merous, lar^e and showy, 



* Solitary on naked somewhat paniculate peduncles: anthers at length coiled into a helix. 

 S. chloroides, Pursh. Stem a foot or two high, loosely and sparingly branched above : 

 leaves oblong-lanceolate, or the lowest oblong-spatulate and the uppermost linear : calyx- 

 lobes subulate-linear, about half the length the spatulate-obovate lobes of the (rose-purple 

 or sometimes white) corolla: divisions of the deeply-cleft style linear-clavate. Torr. Fl. 

 X. Y. ii. t. 84. Chironia dodccandra, L. Spec. i. 190 ; Walt. 1. c. Chlora dodftcandni, L. 

 Syst. Chironia chloroides, Michx. Fl. i. 147. Margin of pine-barren ponds along the coast, 

 Massachusetts to Florida and Alabama. Corolla about 2 inches in diameter. 



Var. stricta. Stem more rigid, 1-few-flowered : leaves all linear. Chironia decandra, 

 Walt. 1. c. ? S. Carolina 1 Alabama, and Florida. 



* Capitate-clustered or sometimes solitary flowers sessile and leafy -bracted : calyx-tube turbinate: 

 anthers of firm texture, slightly ctfrved. Lnpithea,Griseib. 



S. gentianoides, Ell. Stem strict, a foot or two high : radical leaves in a rosulate tuft, 

 obovate or oblong : cauline very narrowly linear, 14 to 8 inches long, a line or two wide ; 

 the uppermost involucrating the terminal cluster of 3 to 5 or sometimes one or two nearly 

 sessile flowers ; occasionally one or two in lower axils : calyx-lobes lanceolate-subulate, very 

 much shorter than the spatulate corolla-lobes, these 6 to 10 lines long : style 2-cleft at the 

 apex, the lobes spatulate. Sk. i. 286 ; Chapm. Fl. 354. S. oligophi/l/a, Featherman in Univ. 

 Mississip. Rep. 1871. Lapithea c/entianoides, Griseb. in DC. I.e. 48. Margin of pine-barren 

 ponds, Georgia and Florida to Texas. 



