ORDER LXXXI. LOGANACE^. 435 



Genus III.— ECHI'TES. Walt. 18—5. 

 • (From echis, serpent, from the form of its roots.) 



Calyx 5-parte(l, with acute segments. Corolla funnel-shaped, 

 the border 5-parted, the throat naked. Anthers adhering to the 

 stigma. Follicles 2, distinct, long, slender. 



1. E. diffor'mis, (Walt.) Stem climbing over small shrubs. Leaves 

 opposite, pubescent beneath, the lower ones narrow-lanceolate or linear, 

 the upper oval-lanceolate, acuminate. Flowers in corymbose racemes. 

 Stamens included, inserted into the base of the corolla. — Yellowish- 

 white. U. May — Aug. Damp rich soils. 



Order LXXXI.— LOGANA'CE^ or SPIGELIA'CE^. 



Cahjx 5-parted. Corolla hypogynous, tubular, 5-lobed. 

 Stamens 5, inserted into the corolla. Ovary superior, 2-celled. 

 Style articulated. Stigma simple. Fruit capsular, 2-celled, 

 2-valved, dehiscing elastically. Placentce central. Albumen 

 abundant. Embryo minute. Herbaceous plants with opposite 

 entire leaves. Flowers in secund spikes. 



Genus L— SPIGE'LIA. L. 5—1. 

 (In honor of Adrian Spigelian of Padua.) 



Calyx 5-parted. Anthers converging. Flowers in secund 

 spikes. 



1. S. Maryland'ica, (L.) Stem square, branching at the base, slight- 

 ly winged. Leaves sessile, ovate-lanceolate margins, and veins pubes- 

 cent beneath. Flowers in a simple terminal, secund spike ; seguients 

 of the calyx subulate ; tube of the corolla ventricose, long, yellow with- 

 in, segments short. — Deep red. U- May — July. Dry soils. Very 

 common. 1 — 2 feet. Carolina Pink, or Fink-root. 



2. S. genti^noi'des, (Chap.) Stem erect, simple, 4-angled. Leares 

 sessile, lower obovate, middle ovate, upper ovate-lanceolate. Spikes 

 2 — 5-flowered ; lobes of the calyx shorter than the tube of tiie corolla ; 

 lobes of the corolla narrow-lanceolate. — Florida. 



The root of this pl.int is mncli used in both the rogul.ir and doinoslic practice, as a 

 vermifu<i;e, or in casoe of worms. It should always lie employed in cunnc-ction with 

 some cathartic medicine, since it acts as a narcotic, if not carried from the sy.>-teui, 

 either by its own action or that of some other agent 



Genus II.— GELSEM'INUM. Ait. 5—2. 

 (An ancient name of Jasmine.) 



Calyx 5-leaved. Corolla funnel-shaped, with the border 5 

 lobed. Capsule compressed, 2-celled. Seed tlat. 



1, G. sempervi'rens, (Ait.) (nitidum.) Stem twining, smooth, gla- 

 brous. Leaves op|)o^ite, lanceolate, entire, perennial, shining on the 

 upper surface, paler beneath. Floicers in axillary clusters, on .short pe- 

 duncles, which are covered with small scales. Leaves of the calyx equal, 

 glabrous. Capsule oblong, furrowed, terminated by the style. — Yellow 

 ^ . Feb. — March. yellow Jessamine 



