

GEXTIANACEJE. (GEXTIAN FAMILY.) 337 



as the linear calyx lobes. Low rich grounds. August. Stein 1 -2 high. 

 Leaves 1' - !' long. Corolla 1' wide. 



5. S. brachiata, Ell. Stem erect, terete, paniculately branched near 

 the summit ; leaves sessile, lanceolate, the upper linear, acute, the lowest 

 clustered ; flowers in small loose peduucled cymes, terminating the branches, 

 and forming an oblong or pyramidal panicle ; lobes of the corolla narrowly 

 oblong, twice as long as the linear calyx lobes. Low grounds in the middle 

 and upper districts. July- August. Stem 2 high. Leaves 1' long. Co- 

 rolla 1' wide. 



-H- H- -i- Flowers scattered, on long peduncles, white or purple : branches 



alternate. 



6. S. Elliottii, Steud. 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. pauiculata, Ell.) Low pine barrens, Florida to 

 South Carolina. August- Sept. Stems i-H high. Leaves 3" -6" 

 lon<j. Corolla 8" -10" wide, white. 



O 



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

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

 aim >st filiform ; flowers terminating the short brauchlets ; lobes of the corolla 

 o I. ovate-oblong, rather longer than the filiform calyx lobes. Low grassy 

 pine barrens and meadows. July- August. Stem slender, l-l^loug. 

 Leaves 1'- 1' long. Corolla 12" - 15" wide, purple. 



8. S. Stellaris, Pursh. Stem obscurely 4-augled, slender, pauiculately 

 long-branched ; leaves somewhat fleshy, the lowest lanceolate or oblong, ob- 

 tuse, the upper linear, acute ; flowers on very long peduncles ; lobes of the 

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

 gust- Sept. Stem l-3 high. Leaves l'-2' long. Peduncles l'-4' 

 long. Corolla 1|' wide, purple. 



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

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

 wliite, 5-7-lobed, shorter than the lanceolate leafy calyx lobes. River 

 swamps. July- August. Stem 6'- 12' high, rigid. Leaves I'-l^' long. 

 Corolla 8" -10" wide. 



* * Calyx and corolla 7-12-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- 

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

 commonly more than twice as long as the linear or subulate calyx lobes. 

 Margins of pine barren ponds and swamps. July -August. Stem l-2 

 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 ij j wide. 



22 



