3.Vt CKNTIANACK.E. (oi.NTIAN FAMILY.) 



•*-■*- -f- Floifirx srttttind, on long peduncles, white or purple: bruuchns altmiali-. 

 »j. S. !EIliottii, JStcud. Stem low, ti'R'H'. jmniculati'ly iiiurli l)ruiuhc'(l 

 from mur tlie luise, tlie bniiiilies diHiisc; loaves siiiull, sessile; the lowest 

 obovatc, the uitper linear; lobes of tlie eorolla 3-4 times as long as the short 

 tilifoim caljx-lobcs. (S. paniculata, Ell.) — Open pine barrens, Floritla to 

 South Carolina. Aug. and Sept. — Stems i'-lj'high. Leaves 3''- G" long. 

 Corolla 8"- 10" wide. 



7. S. gracilis, Pursli. Stem slightly 4-angled, ereet or reclining, diffu.sc, 

 the branches 1 -3-Howcred ; leaves linear or oi)long-liiiear, the uppermost almost 

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

 ohlong, rather longer than the filiform caly.x-lobcs. - - Low grassy jjine barrens 

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

 slender, 1° - 1 A° long. Leaves 1'- 1^' 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, 

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

 long. Teduncles 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 

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

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

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



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



10. S. chloroidcs, Pursh. Stem erect, terete, simple, or 1 - 2-forking, 

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

 and tlie 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° - U° high. Leaves 1' long. Corolla 1 ^' - 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 1'- 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 l°-2° hitrh. Leaves U'-3' long. Corolla 2' wide. 



