114 GENTIANACEiE. Sahhatia. 



§ 1. Flowers 5-merous (or only occasionally some of them 6-7-merous) : an- 

 thers from apically recurved to helicoid. 



* Branches all opposite : flowers corjTtibosely or paniculately cjTnose, short -pedicelled. 

 -t— Calyx very small, merely 5-toothed. 



S. macroph^lla, Hook. Glaucous : stem simple, terete, 2 or 3 feet high : leaves rather 

 distant, thickish, nearly erect, ovate or ovate-lanceolate with cordate-clasping 3-5-nerved 

 base, acute or mucronate-acuminate (1 to 3 inches long) ; the uppermost reduced to small 

 subulate bracts : cymes flat-topped, naked and in a naked terminal corymb or compound 

 cyme : pedicels short and filiform : teeth of the small calyx subulate and shorter than the 

 tube : corolla white ; the lobes oblong, 3 or 4 lines long : style not cleft to the middle. — 

 Hook. Comp. to Bot. Mag. i. 171 ; Griseb. in DC. 1. c. 50 ; Chapra. Fl. 353. — Wet pine bar- 

 rens, Georgia to Florida and Louisiana. 



•I— -I— Calj'x with long aud slender or linear lobes : stem more or less 4-angled. 

 ++ Corolla white, fading j'ellowish : style 2-parted, its divisions spatulate-linear. 



S. lanceolata, Torr. & Gray. Stem simple, 2 or 3 feet high, bearing a terminal and 

 naked corymbose cyme : leaves much shorter than the internodes (an inch or so long), from 

 ovate to lanceolate, 3-5-nerved, the floral reduced to subulate bracts : pedicels mostly short 

 but slender : calyx-lobes almost filiform, more than half the length of the corolla : lobes 

 of the latter obovate-oblong, a third to half inch long. — Gray, Man. ed. 1, 356 ; Chapm. 

 Fl. 353. Chironia lanceolata, Walt. Car. 95. C. cymosa, Lam. III. i. 479, therefore Sahbatia 

 cymosa, Don, Syst. C. paniculata, Michx. Fl. i 146, partly. Sahhatia paniadata, var. lati/olia, 

 Pursh, Fl. i. 138. S. corymbosa, Baldw. in Ell. Sk. i. 283. — Wet pine-barrens, New Jersey 

 to Florida. 



S. panicxilata, Pursh. Stem a foot or two high, freely branching ; the branches cy- 

 mosely few-many-flowered and uppermost cymes corymbose : leaves from linear to lanceo- 

 late-oblong, obtuse ; the floral mostly linear and acute : pedicels very short to the central 

 flowers : calyx-lobes not more than half the length of the corolla : lobes of the latter 

 spatulate-oblong, 3 lines long. — Fl. I. c. (var. angustifolin, & excl. syn. Swertia diffbrmis, L.) ; 

 Gray, 1. c, not Ell. Chironia paniculata, Michx. 1. c. partly, and as to char. — Moist or dry 

 ground, Virginia to Florida. 

 ++ ++ Corolla rose-color, varying to white : style cleft to the middle, its lobes slightly clavate. 



S. brachiata, Ell. Stem slightly angled, a foot or two high: leaves from lanceolate- 

 oblong to linear, mostly obtuse, obscurely 3nerved at base : inflorescence thyrsiform-pan- 

 iculate ; the lateral cymes naked-pedunculate and about 3-flowered ; calyx-lobes narrowly 

 linear, shorter than or nearly equalling the light rose-color or nearly white corolla : lobes of 

 the latter obovate-oblong, half inch long. — Sk. i. 284 ; Chapm. 1. c. S. concinna, Wood, 

 Class-Book, 451. Chironia angidaris, var. angustifolia, Michx. 1. c. — Dry or low grounds, 

 Indiana and N. Carolina to Louisiana and Florida. 



S. anglllaris, Pursh. Stem quadrangular with sharp angles, 2 feet high, paniculately 

 branched above ; the branches leafy : leaves cordate-ovate and clasping, 3-5-nerved : numer- 

 ous and crowded branches few-flowered, pyramidally or somewhat corj'mbosely cymose : 

 calyx-lobes linear, much shorter than the corolla : lobes of the latter deep rose-color, obo- 

 vate. fully half-inch long. --Ell. I. c. ; Bigel. Med. t. 57; Bart. Med. t. 24; Torr. Fl. N. Y. 

 ii. t. 83. Chironia angularis, L. ; Michx. 1. c, var. lati/olia. — Rich soil, W. Canada to Florida 

 and Louisiana. 



* * Branches alternate or the lower opposite : foliaceous calyx-lobes longer and hardly narrower 

 than the lobes of the corolla : flowers not rarelj' 6-7-merous : style 2-parted. 



S. calycosa, Pursh. Stem a span to a foot long, loosely branching : leaves from oblong 

 to broadly lanceolate, narrowed at base : peduncles scattered, 1-flowered, mostly elongated, 

 occasionally short: calyx-lobes from linear to spatulate, resembling upper leaves, half 

 inch or more long, not rarely double the length of the obovate-spatulate lobes of the rose- 

 colored or almost white corolla. — Bot. Mag. t. 1600. Chironia dicholoma, Walt. Car. 93. 

 C. calycosa, Michx. 1. c. Gentiana calycina. Lam. Diet. ii. 638. Sahhatia gracilis, var. Cuhensis, 

 Griseb. PI. Wright. Cub. ii. 521. — Sea-coast and near it, Virginia to Texas. (Cuba.) 



* * * Branches alternate: calyx -lobes slender, seldom exceeding the obovate lobes of the corolla: 

 peduncles more or less elongated and scattered, naked, 1-flowered. 



