354 GENTIANACE^E. (GENTIAN FAMILY.) 



4- - -- Flowers scattered, on Jong peduncles, white or purple : branches alternate. 



6. S. Elliottii, Stcud. Stem low, terete, paniculately much branched 

 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. paniculata, Ell.) Open pine barrens, Florida to 

 South Carolina. Aug. and Sept. Stems '-!' 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 - 1 long. Leaves 1'- l' long. Corolla 12" - 15" wide. 



8. S. stcllaris, 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 1- 3 high. Leaves 1'- 2' 

 long. Peduncles 1'- 4' long. Corolla l' 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 

 white, 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 !'-!' long. Corolla 8" - 10" wide. 



* * Calyx and corolla. 7-1 2-parted : flowers purple. 



10. S. chloroides, Pursh. Stem erect, terete, simple, or 1 - 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 northward. July and Aug. 

 Stem 1- 1J high. Leaves 1' long. Corolla l'-3' 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, Dr. Boykin. Stem 1 

 high. Leaves l'-2' long. Corolla l' 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 1^-3' long. Corolla 2' wide. 



