GENTIANACEAE 927 



b. Calyx-tube not prominently ribbed , surrounding the base of the capsule only. 



Calyx-lobes foliaceous, often surpassing the corolla. 8. S. calycina. 



Calyx-lobes very narrow, slender, usually shorter than the corolla, if nearly 

 as long as the corolla-lobes, then fliiform. 

 Stigmas longer than the style. 



Calyx-lobes less than i/^ as long as the corolla. 9. S. Elliottii. 



Calyx-lobes fully as long as the corolla. 10. S. stcUaris. 



Stigmas shorter than the style. 



Corolla-lobes 1-1.5 cm. long. 11. S. campanulata. 



Corolla-lobes 2-3 cm. long. 12. S. grandiflbra. 



B. Corolla-lobes 8-12. 



Corolla-lobes less than 2.5 cm. long. 



Calyx-lobes about ^ as long as the corolla. 



Leaf-blades narrowed at the base, merely sessile : calyx-lobes narrowed 



upward. 13. S. dodecandra. 



Leaf-blades broad at the base, partly clasping : calyx-lobes broadened 



upward. 14. S. Harperi. 



Calyx-lobes as long as the corolla or nearly so. 15. S.foliosa. 



Corolla-lobes over 2.5 cm. long. 16. S. decandra. 



1. Sabbatia macrophylla Hook. Stems erect or ascending, 6-10 dm. tall, terete ; 

 branches opposite : leaf-blades oblong to lanceolate or ovate-lanceolate, or rarely ovate, 

 2-6 cm. long, acute, sessile : calyx glabrous ; lobes lanceolate to triangular-lanceolate, 

 shorter than the tube : corolla white ; lobes oblong or oblong-spatula te, 6-8 mm. long, 

 obtuse : capsules subglobose or ovoid, 3-4 mm. long. 



In wet pine lands or bogs, Georgia to Florida and Louisiana. Summer. 



2. Sabbatia lanceolkta (Walt.) T. & G. Stems erect, 4-9 dm. tall, corymbose 

 above, narrowly wing-angled ; branches opposite : leaf-blades suborbicular to ovate or 

 lanceolate above, 1-3 cm. long, apiculate or acute, sessile : calyx glabrous ; lobes nar- 

 rowly linear or linear-tiliform, longer than the tube : corolla white, drying yellowish ; 

 lobes spatulate or obovate-oblong, 12-15 mm. long : styles shorter than the stigmas : cap- 

 sules ovoid or globose-ovoid, 6-7 mm. long. 



In wet pine lands. New Jersey to Florida. Spring and summer. 



3. Sabbatia paniculata (Michx. ) Pursh. Stems erect often branched at the base : 

 branches ascending, 1-4 dm. long, corymbose at the top, wing-angled : leaf-blades oblong- 

 spatulate to oblong, oblong-lanceolate or nearly linear, 1-3 cm. long, obtuse but usually 

 apiculate, partly clasping : calyx glabrous ; lobes linear or linear-lanceolate, about thrice 

 as long as the tube : corolla white ; lobes oblong-spatulate, 1-1.5 cm. long, obtuse : style 

 shorter than the stigmas : capsules oblong, 7-9 mm. long. 



In meadows and pine lands, Virginia to Florida and Alabama. Spring and summer. 



4. Sabbatia angustifolia (Michx.) Britton. Stems erect, 1-4 dm. tall, with several 

 opposite branches above or sometimes branched at the base : leaf-blades narrowly oblong to 

 linear-lanceolate, or oblong-spatulate at the base of the stem, 1.2-3.5 cm. long, acute or 

 obtuse, sessile : calyx glabrous ; lobes, narrowly linear, 8-10 mm. long, often variable in 

 length : corolla rose-colored ; lobes oblong to spatulate-oblong, often barely surpassing the 

 calyx-lobes : style longer than the stigmas : capsules oval, 5-7 mm. long. [<S'. brachiata Ell.] 



In moist soil, Indiana and North Carolina, Florida and Louisiana. Summer. 



5. Sabbatia angulkris (L. ) Pursh. Stems erect, 3-8 dm. tall, narrowly 4-winged ; 

 branches opposite : leaf-blades broadly ovate, to ovate-lanceolate, or orbicular to orbicular- 

 ovate at the base of the stem : calyx glabrous ; lobes linear or linear-lanceolate, 10-14 mm. 

 long, much shorter than the corolla : corolla deep pink or rarely white, with a lemon or 

 greenish eye ; lobes oblong or cuneate-obovate, i.5-2 cm. long, obtuse : anthers bright 

 lemon : capsules oblong, about 5 mm. long. 



In rich soil, Ontario to Florida, Michigan and the Indian Territory. Summer and fall. 



6. Sabbatia camp^stris Nutt. Stems erect, 1-4 dm. tall, more or less widely 

 branched above : leaf-blades ovate to ovate-lanceolate, 1.5-4 cm. long, apiculate or acute, 

 broadest near the base and partly clasping : calyx deep green ; tube prominently ribbed ; 

 lobes linear, or narrowly linear-lanceolate, 2-3 cm. long, acute, with prominent marginal 

 ribs : corolla lilac ; lobes oval or obovate, as long as the calyx-lobes or shorter : capsules 

 wholly or mostly enclosed by the calyx-tube, 8-10 mm. long. 



On prairies, Missouri to Arkansas and Texas. Spring and summer. 



7. Sabbatia camosa Small. Stems erect, often branched at the base ; branches ascend- 

 ing, 1-3 dm. long, zigzag : leaf-blades oblong, spatulate-oblong or oblong-lanceolate in the 

 inflorescence, 1-2 cm. long, obtuse, usually broadest about the middle, sessile, not clasping : 

 calyx bright green ; tube prominently-ribbed ; calyx-lobes linear-lanceolate, 8-12 mm. 

 long, with prominent marginal nerves : corolla pink or lilac ; lobes cuneate or oblong- 

 cuneate, 6-9 mm. long, usually surpassed by the calyx-lobes, inequilateral : capsules mostly 

 included in the calyx-tube, about 8 mm. long. 



In sandy soil, Texas. Summer and fall. 



