182 RUBIACE^. (.-MAUDKR FAMILY.) 



calyx-lobes. (Coelosn-lis, Tort. ,y Gmij.) — Near Fort Kinj^, East Florida. — 

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



2. S. gentianoides, Chapm. Stem ercet, simple, 4-angl((l, roughish; 

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

 roughened; si)ikes terminal, fow-flowered ; lobes of the corolla connivent; sta- 

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

 Stem 6'- 10' high. Corolla C"- 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 ; sjiikcs termi- 

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

 ing ; anthers and style exscrtcd. — Ivich woods, Florida to Mississippi, and 

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

 yellow within. — A popular vermifuge. 



20. MITREOLA, L. Mitre-wort. 



Calyx 5-parted. Corolla short, 5-lobcd, valvatc in the bud, the tube roundish, 

 bearded in the throat. Stamens 5, included : anthei-s 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, Ton-. & Gray. Stem branching; leaves thin, oblong, 

 acute, narrowed into a petiole. (Ophiorhiza lanceolata, /J//.) — Muddy banks, 

 Florida to North Carolina, and westward. June -Sept. Q) — Stem 4-angled, 

 1° - 2° high. Leaves 2' - .3' long. 



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

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

 capsule very small. (Ojihiorliiza Mitrcola, Mirhx.) — Varies with lanceolate 

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

 to North Carolina, and westward. July -Sept. (j^, — blem C'-18' high. 

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



21. POLYPREMUM, L. 



Calyx deeply 4-partcd, persistent. Corolla wheel-shaped, beard-d in tlio 

 throat, 4-lolK"d, imbricated in the bud. Stamens 4. Stylo single, very short 

 Stigma ovoid, entire. Capsule ovoid, compressed, 2-celle<l, loculicidally 2-vulved, 

 many-seeded. — A low smooth i)erennial herb, with 4-angled forkin;^ stems, linear 

 acute leaves, their bases tinitcd I)y the membranaceous stipules, and solitary ses- 

 sile white flowers in tiic forks of the stem. 



1. P. prOCUmbens, L. — Waste places, Florida to North CiiroVma. 

 Juno -Sept. — Stems C- 10', erect or ])rostratc, clustered. 1 lowers very siuull, 

 the corolla barely longer than tiio e:ilyx-lobcu. 



