35-4 GENTIANACEiE. (GENTIAN FAMILY.) 



■*-+-+- Flowtrs scattered, on long peduncles, white or purple : branches alternate. 

 o. S. Eiliottii, Steud. Stum low, terete, paniculately much branched 

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

 obovate, the upper liuear ; lobes of the corolla .'5-4 times as long as the short 

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

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

 Corolla 8"- 10" wide. 



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

 the brandies 1 -8-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°- l£° long. Leaves l'-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 r , 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-lubes. — River swamps, 

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

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



* * Calyx and corolla 7 - \2-partcd : 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 l°-lj°high. Leaves 1' long. Corolla l£'-3' wide. 



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

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



capitate cluster, senile and 2-bracted ; corolla 8 - '.I -parted, much longer than 



the oblong-lanceolate calyx-lobes. — Middle Georgia, Dr. Boykin. — Stem 1° 

 high. Leaves 1'- 2' long. Corolla lj' wide. 



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

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

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

 corolla B- l0-parted, 2-3 times as long as the subulate calyx-lobes; anthers 



lit.— Low pine barrens, Georgia, Florida, and westward. Julj and Aug. 



— Stem l°-2° high. Leaves U'-iS' long. Corolla 2' wide. 



