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3. Mitreola. Styles 2, short, converging, united at summit and with a common 
stigma: corolla urn-shaped. 
+ + Corolla imbricated in bud, 4 sometimes 5-lobed. 
++ Calyx deeply 4 or 5-parted: pod loculicidal: annual herb. 
4. Polypremum. Corolla campanulate, shorter than the subulate foliaceous sepals. 
++ ++ Calyx 4-toothed or cleft: pod sapticidal: shrubs with leaves often dentate. 
5. Buddleia. Corolla mostly rotate-campanulate: anthers sessile or nearly so in 
the throat. 
6. Emorya. Corolla salverform: stamens exserted; filaments elongated, inserted 
on middle of tube. 
1. GELSEMIUM Juss. (YELLOW JESSAMINE.) 
Smooth and twining shrubby plants, with ovate or lanceolate leaves, 
minute deciduous stipules, showy yellow flowers, 5-parted calyx, open 
funnelform 5-lobed corolla, 5 stamens with oblong sagittate anthers, 
long slender style, each of the 2 stigmas 2-parted into linear divisions, 
elliptical 2-celled 2-valved pod flattened contrary to the narrow parti- 
tion, and many or several winged seeds. 
1. G. sempervirens Ait. Stem climbing high: leaves short petioled, shining, 
nearly persistent: flowers in short axillary clusters: pedicels scaly-bracted: flowers 
very fragrant, 2.5 to 3.5 cm. long.—Extending from woods and low grounds of the 
Gulf States through Texas to Mexico. 
2. SPIGELIA L. (PINK-ROOT. WORM-GRASS.) 
Chiefly herbs, with opposite leaves united by stipules, flowers spiked 
in one-sided cymes or solitary, 5-parted calyx with slender lobes, tubu- 
lar funnelform corolla 5-lobed at summit, 5 stamens with linear anthers, 
solitary slender style hairy above and jointed near the middle, and a 
short 2-celled twin pod separating at maturity from a persistent base 
into two carpels. 
* Flowers showy, in one-sided spikes: corolla red or pink, elongated-tubular : anthers and 
style exserted. 
1. S. Marilandica L. (INDIAN PINK, etc.) Stems simple and erect, 15 to 45 em. 
high: leaves sessile, ovate-lanceolate, acute: spike simple or forked, short: corolla 
3.5 em. long, red outside, yellow within; tube 4 times as long as the calyx.—Rich 
woods, extending from the Atlantic region into Texas. 
** Flowers small, terminal and in the forks of leafy branches: corolla salverform, white 
or nearly so: anthers and style included. 
2. S. Lindheimeri Gray. Diffusely much branched from base, puberulent-sca- 
brous: leaves from ovate-oblong to lanceolate, 2.5 cm. long or less, acutish at base: 
sepals linear, the scarious margins conspicuously dentate: corolla 8 mm. long.—Prai- 
ries of western Texas, 
3. S. Texana A. DC. Nearly smooth and glabrous: leaves ovate to lanceolate- 
oblong, thinner and larger (2.5 to 5 cm. long), mostly acute at both ends: sepals seta- 
ceous-subulate, only 1-nerved, the margins very obscurely serrulate-scabrous: corolla 
12mm.long. (Ce@lostylis Texana Torr. & Gray.—Eastern and southern Texas, 
