LOGANIACE^E. (LOGANIA FAMILY.) '201 



vate, sessile, the upper surface and margins roughish ; flowers axillary, 

 solitary, or the terminal ones three in a cluster ; tube of the corolla more 

 than twice as long as the calyx lobes. Near Fort King, East Florida. 

 Stem 6'- 10' high. Leaves 4"- 9" long. Corolla 4" long, white. 



2. S. gentianoid.es, Chapm. Stem erect, simple, 4-augled, roughish ; 

 leaves roundish, ovate, or oblong, sessile, acute, the upper surface and mar- 

 gins roughened ; spikes terminal, few-flowered ; lobes of the corolla connivent ; 

 stamens and style included. Light dry soil, West Florida. May -June. 

 Stem 6'- 10' high. Corolla 6"- 10" long, pale rose-color. 



3. S. Marilandica, L. Stem simple, erect, smooth, 4-augled ; leaves 

 ovate-lanceolate, or oblong, acute, sessile, pubescent on the veins ; spikes ter- 

 minal, many-flowered, sometimes forking ; corolla long, slender, the lobes 

 spreading; anthers and style exserted. Rich woods. May -June. Stem 

 l-2 high. Corolla l' long, scarlet, yellow within. A popular vermi- 

 fuge. 



2. MITREOLA, L. MITRE-WORT. 



Calyx 5-parted. Corolla short, 5-lobed, valvate in the bud, the tube round- 

 ish, bearded iii the throat. Stamens 5, included : anthers ovate. Styles 2, 

 short, united above. Stigma capitate. Capsule 2-parted, mitre-shaped, many- 

 seeded, the two lobes opening on the inner face near the apex. Seeds oval, 

 concave. Smooth herbs, with opposite leaves, and small white flowers in 

 terminal and axillary cymes, with the simple branches recurved in the bud. 



1. M. petiolata, Torr. & Gray. Stem branching ; leaves thin, oblong, 

 acute, narrowed into a petiole. (Ophiorhiza lauceolata, Ell.) Muddy banks, 

 Florida to North Carolina, and westward. June -Sept. (T) Stem 4-angled, 

 1 - 2 high. Leaves 2' - 3' long. 



2. M. sessilifolia, Torr. & Gray. Stem simple, 4-angled ; leaves thick, 

 ovate or roundish, strongly veined, sessile, rough on the margins; flowers and 

 capsule verv small. (Ophiorhiza Mitreola, Mickx.) Varies with lanceo- 

 late obscurely veined leaves, and larger flowers and fruit. Grassy swamps. 

 July -Sept. Stem 6' -18' high. Leaves 6" -10" long. Plant pale 

 green. 



3. POLYPREMUM, L. 



Calyx deeply 4-parted, persistent. Corolla wheel-shaped, bearded in the 

 throat, 4-lobed, imbricated in the bud. Stamens 4. Style single, very short. 

 Stigma ovoid, entire. Capsule ovoid, compressed, 2-celled, loculicidallv 2- 

 valved, many-seeded. A low smooth perennial herb, with 4-angled forking 

 stems, linear acute leaves, their bases united by the membranaceous stipules, 

 and solitary sessile while flowers in the forks of the stem. 



1. P. procumbens, L. Waste places, Florida to North Carolina. 

 June -Sept. Stems 6' -10' long, erect or prostrate, clustered. Flowers 

 very small, the corolla barely longer than the calyx lobes. 



4. GELSEMIUM, Juss. YELLOW JESSAMINE. 



Flowers dimorphous. Calyx 5-parted, persistent. Corolla funnel-shaped, 

 5-lobed : the lobes rounded, emarginate, spreading, quincuncial in the bud. the 



