354 GENTIANACE^. (GENTIAN FAMILY.) 



■<--»-->- Flowers scattered, on long peduncle, white or purple : branches alternate. 



6. S. EUiottii, Stend. Stem low, terete, paniculately much branohed 

 from near the base, the branches diffuse ; leaves small, sessile ; the lowest 

 obovate, the upper linear; lobes of the corolla 3-4 times as long as the short 

 filiform calyx-lobes. (S. panicnlata, Ell.) — Open pine barrens, Florida to 

 South Carolina. Aug. and Sept. — Stems J'-lJ' high. Leaves 3" -6" long. 

 Corolla 8"- 10" wide. 



7. S. gracilis, Pursh. Stem slightly 4-angled, erect or reclining, diffuse, 

 the branches 1 -3-flowered ; leaves linear or oblong-linear, the uppermost almost 

 filiform ; flowers terminating the short branchlets ; lobes of the corolla obovate- 

 oblong, rather longer than the filiform calyx-lobes. - - Low grassy pine barrens 

 and meadows, Florida to Mississippi, and northward. July and Aug. — Stem 

 slender, 1°- lj° long. Leaves I'-l^' long. Corolla 12"- 15" wide. 



8. S. stellaris, Pursh. Stem obscurely 4-angled, slender, paniculately 

 branched, the branches elongated ; leaves somewhat fleshy, the lowest lanceolate 

 or oblong, obtuse, the upper linear, acute ; flowers on very long peduncles ; lobes 

 of the corolla oblong, longer than the filiform calyx-lobes. — Salt marshes, 

 Florida, and northward. Aug. and Sept. — Stem l°-3° high. Leaves l'-2' 

 long. Peduncles 1 '- 4' long. Corolla 1|^' wide. 



9. S. calycosa, Pursh. Stem low, terete ; leaves thin, lanceolate or ob- 

 long, obtuse, narrowed at the base, the lowest petioled ; flowers few ; corolla 

 Avhite, 5 - 7-lobed, shorter than the lanceolate leafy calyx-lobes. — River swamps, 

 Florida to North Carolina, and westward. July and Aug. — Stem 6'- 12' high, 

 rigid. Leaves 1 '- I J' long. Corolla 8"- 10" wide. 



* * Calyx and corolla 7 - 12-parted : flowers purple. 



10. S. ehloroides, Pursh. Stem erect, terete, simple, or I - 2-forking, 

 1 - 5-flowered ; leaves lanceolate, sessile, uniform, or the lowest spatulate-oblong 

 and the upper linear, acute; corolla large, 8-12- (mostly 10-) parted, com- 

 monly more than twice as long as the linear or subulate calyx-lobes. — Margins 

 of pine-barren ponds and swamps, Florida, and nonhward. July and Aug. — 

 Stem l°-lj°high. Leaves 1' long. Corolla l^'-S' wide. 



11. S. Boykinii, Gray. Stem mostly simple, somewhat angled; leaves 

 lanceolate-oblong, or the lowest elliptical; flowers single or 3-7 in a terminal 

 capitate cluster, sessile and 2-bracted ; corolla 8-9-parted, much longer than 

 the oblong-lanceolate calyx-lobes. — ^ Middle Georgia, Di: Boykin. — Stem 1° 

 high. Leaves l'-2' long. Corolla 1|-' wide. 



12; S. gentianoides, Ell. Stem erect, simple, slender; lowest leaves 

 lanceolate or oblong, narrowed at the base ; the others long, linear, sessile ; 

 flowers large, in axillary and terminal clusters, or terminal and solitary ; 

 corolla 8-10-parted, 2-3 times as long as the subulate calyx-lobes; anthers 

 straight. — Low pine barrens, Georgia, Florida, and westward. July and Aug. 

 — Stem 1 ° - 2° high. Leaves U ' - 3 ' long. Corolla 2' wide. 



