OBDER 85. LOGANIACEJE. 515 



GENERA. 

 5 Corolla tubular, lobes 5, valvate in bud. Seeds -wingless, (a) 



a Styles wholly united into one. Corolla tube long SPIOELIA. 1 



a Styles distinct, with the stigmas united. Cor. tubeshort....MmiEOLA, 2 

 ^ Corolla campanula^, lobes 4 or 5, imbricate in bud. (b) 



b Flowers 4-parted. Diffuse herbs POLYPBEMUM. 8 



b flowers 5-parted. Twining shrubs, GELSEMIL-M. 4 



1. SPIGE V LIA. L. PINK-ROOT. (To Adrian Spigclius, Professor of 

 Anat. and Surg. at Padua, 1578 1625.) Calyx 5-partcd, segments 

 linear-subulate ; corolla narrowly funnel-form, limb 5-cleft, equal ; sta- 

 mens 5 ; anthers convergent ; capsule didymous, 2-celled, few-seeded. 

 Herbaceous or suffrutescent. Lvs. opposite. Stip. small, interpetiolar. 

 Fls. sessile, in terminal spikes. 



S. Marilandica L. Erect, simple, nearly glabrous ; st. square ; Ivs. sessile, 

 ovate-lanceolate, acute, or acuminate, margin and veins scabrous-pilous ; spikes 3 

 to 8-flowered ; cor. tube 4 times longer than the cal. ; anth. exserted ; lobes of tho 

 cor. lanceolate; caps.. glabrous, shorter than the cal. 1[ In woods, Pen n. to 111., 

 S. to Fla. An elegant dark green herb, a foot high. Lvs. 3 to 4' by l to 2', 

 entire, often ovate-acuminate, the stipules scarcely perceptible. Pis. H to 2' long, 

 somewhat club-shaped, scarlet without, yellow within. Sty. exserted. Jn. 

 A celebrated anthelmintic. 



2. MITRE'OLA, L. (Lat, mitrcola, a little mitre ; from the form of 

 the capsule.) Calyx 5-parted ; corolla tubular, short, 5-cleft, hairy in 

 the throat, lobes valvate in bud ; stamens 5, on the corolla tube, in- 

 cluded ; ovary 2-celled, styles 2, united at the top with one stigma, 

 separate below, as well as the 2 horns of the co-seeded capsule. Q 

 Glabrous herbs. Stipules minute. Fls. small, white, in scorpoid racemes, 

 forming a terminal, stalked cyme. 



1 M. petiolata Torr. & Gr. Erect, branched ; Ivs. lanceolate or oblong-ovate, 

 acute, tapering at the base into apetiole; fls. somewhat distant in the racemes. A 

 plant of singular aspect, in damp shades, Ya. to Fla. and La. St 1 to 2f high, 

 Lvs. thin, about 2' long, including the short petiole. Cymes about twice trichoto- 

 mous, the small fls. all on the upper side of the racemes. Capsules mitre-form. 

 Jn. Sept. (Ophiorhiza Mitreola, L.) 



2 M. sessilifolia Torr. & Gr. Erect, nearly simple ; Ivs. broad-oval', or ovate, ses- 

 sile, acute, much shorter than the internodes ; fls. contiguous in, the racemes. 

 Damp soil, S. Car. to Fla. and La. More slender than the- other, 10 to 18' high. 

 Lvs. thickish, not veiny, 6 to 8" by 4 to 6". Cymes small,, compact. Fls. about 

 half as large as in No. 1. Jn. Aug. (Anonymus,, Walt.) /?. angustifolia, 

 Torr. & Gr. has lance-elliptical leaves ; at Quincy, Flzu. 



3. POLYPRE V MUM, L. (Gr. rrokvg, many, -rrpepvov,. stem ; a charac- 

 teristic of the plant.) Calyx 4-parted,, segm. subulate,, membranous- 

 margined at base ; cor. broadly campanulate, 4-parted, Lobes slighly un- 

 equal, obtuse ; throat bearded; stam. 4, adherent to the- corolla- tube, 

 included, anth. globular ; stig entire,, subsessile ; caps, ovoid, 2-celled,. 

 2-ovuled, loculicidal, oo-seeded.: CD Herb glabrous, diffusely much, 

 branched from the brr^e, with opposite, linear-subulate Ivs. connected at 

 base by a slight stipular membrane. Fls. sessile, cymous, small, white.. 



P. procumbena L. Dry fields, Ya to> Fla.. and La. Plant forming roundish, 

 patches, with somewhat the aspect of Scleranthus, its numerous stems procum- 

 bent or ascending,. 6 to 12' long. Lvs.. hardly 1' long, rigid. Cal. persistent, its, 

 pointed sepals exceeding the- capsule. Hay Sept. Bentham refers this.gen.ua 

 to Serophulariacese. Torr. & Gr., hither. 



4. GELSE'MIUM, Juss, YELLOW JESSAMINE. (Ital. gelsemw, the 



