730 



LOGANIACEAE. 



Vol. ir. 



I. Gelsemium sempervirens (L. ) Ait. f. 



Yellow Jessamine. Carolina Jasmine. 



Fig. 3326. 



Bigvovia sempervirens L. Sp. PI. 623. 1753. 

 C. nitidum Michx. Fl. Bor. Am. i: 120. 1803. 

 C sempervirens Ait. f, Hort, Kew. 2; 64. 181 1, 



Stem slender, climbing or trailing, sometimes 

 20 long. Leaves lanceolate, oblong-lanceolate 

 or ovate-lanceolate, entire, short-petioled, per- 

 sistent, evergreen, i}'-3' long, 5"-i2" wide; cymes 

 i-6-flovvered ; pedicels short ; bractlets several, 

 dry, oblong or lanceolate, i"-2" long; flowers 

 dimorphous : sepals oblong, obtuse ; corolla bright 

 yellow, I'-iJ' long; stigmas in one form short and 

 anthers exserted, in the other form longer and 

 anthers included ; capsule flat, channeled on both 

 sides, 4"-/" long, cuspidate ; seeds very flat, 

 broadly winged at the summit. 



In woods and thickets, eastern Virginia to Florida, 

 Te.xas. Mexico and Guatemala, mostly near the coast. 

 March-Oct. Called also Carolina wild woodbine, and 

 evening trumpet-flower. 



2. SPIGELIA L. Sp. PI. 149. 1753. 



Herbs, with opposite membranous entire pinnately veined leaves, small stipules, or the 

 leaf-bases connected by a stipular line, and red yellow or purple flowers in scorpioid cymes 

 or unilateral spikes, or terminal and in the forks of the branches. Calyx deeply 5-parted. 

 Corolla narrowly funnelform, s-lobed, the lobes valvate, the tube finely 15-nerved. Stamens 5, 

 inserted on the corolla-tube; anthers 2-lobed at the base. Ovules numerous, on peltate pla- 

 centae; style filiform, jointed near the middle, papillose above; stigma obtuse. Capsule 

 didymous, 2-celled, somewhat flattened contrary to the dissepiment, circumscissile above the 

 persistent base, the 2 carpels becoming 2-valved. Seeds peltate, not winged. [Named for 

 Adrian von der Spigel, 1558-1625, physician.] 



About 35 species, all American. Besides the following. 4 others occur in the Southern States. 

 Type species: Sptgelia Anthelmia L. 



I. Spigelia marylandica L. Indian or Caro- 

 lina Pink. Fig. 3327. 



Lonieera marylandica L. Sp. PI. 175. 1753. 

 Spigelia marylandica L. Syst. Ed. 12, 734. 1767. 



Perennial, stem 4-angled, glabrous or very nearly 

 so, simple, or branched at the base, erect, i-2 high. 

 Leaves sessile, ovate, or ovate-lanceolate, acute or 

 acuriiinate at the apex, rounded or narrowed at the 

 base, 2'-4' long, -2' wide, sparingly pubescent on 

 the veins beneath; flowers in a solitary (rarely 2 or 

 3) terminal i-sided peduncled spike; corolla scarlet 

 outside, yellow within, i'-2' long, narrowed below, 

 its lobes lanceolate, about 3" long; calyx-segments 

 subulate, as long as the corolla-lobes or shorter; 

 style jointed below the middle, exserted or included. 



In woods. North Carolina to Kentucky. Ohio, Wis- 

 consin (?). Missouri, Florida and Texas. Erroneously 

 recorded from New Jersey. May-July. Pink-root. Worm- 

 grass. Star-bloom. 



. 3. CYNOCTONUM J. G. Gmel. Syst. 2: 443. 1791. 

 [MiTREOL.-^ R. Br. Prodr. Fl. Nov. Holl. i : 450. 1810.] 



Herbs, our species annual, with opposite entire membranous leaves, and t^inute stipules, 

 or the leaf-bases connected by a stipular line. Flowers small, whitish, in one-sided spikes 

 forming terminal or axillary cymes. Calyx S-parted. Corolla urn-shaped, 5-lobed. the 

 lobes valvate in the bud. Stamens 5. included ; filaments short ; anthers cordate. Ovules 

 numerous, on peltate placentae; style short, 2-divided below, united above by the common 

 stigma, the divisions becoming separate. Capsule 2-lobed at the summit ; carpels divaricate, 

 dehiscent along the inner side. Seeds numerous, small, tuberculate. [Greek, dog-killing.] 



About 5 species, natives of warm and tropical regions. Type species : Cynoctonum sessili- 

 foliitm J. G. Gmel. 



