182 RUBiACEuE. (MADDER FAMILY.) 



calyx-lobes. (Coelostylis, Torr. fr Gray.) Near Fort King, East Florida. 

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



2. S. gentianoides, Chapm. Stem erect, simple, 4-angled, roughish; 

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

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

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

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



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

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

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

 ing; anthers and style exserted. Rich woods, Florida to Mississippi, and 

 northward. May and June. Stem l-2 high. Corolla l' long, scarlet, 

 yellow within. A popular vermifuge. 



20. MITBEOLA, L. MITRE-WORT. 



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

 bearded in 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 lanceolata, Ell.) Muddy banks, 

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

 lo _ go high. Leaves 2' - 3' long. 



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

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

 capsule very small. (Ophiorhiza Mitreola, Michx.) Varies with lanceolate 

 obscurely-veined leaves, and larger flowers and fruit. Grassy swamps, Florida 

 to North Carolina, and westward. July -Sept. (1) Stem 6' -18' high. 

 Leaves 6" - 10" long. Plant pale green. 



21. 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, loculicidally 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 ses- 

 sile white flowers in the forks of the stem. 



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

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

 the corolla barely longer than the calyx-lobes. 



