S 1' I G K LI AC E F. A I'OC Y N E ^ . 223 



1 S Marilaxdica. Stem square, branchins? nt the base, slightly winced. 

 Tjmves 9css\\e, ovntc-lanceolate margins, and veins pubescent beneath. — 

 /VirtT* in a .simple terminal, .secund spike, sej^nients of ilic calyx subulate, 

 luDcofihe corolla vcntricoso, long, vellow within, sciitncnts short. 



Deep red. '7|. May — July. L)ry soils, wry common. 1-2 feet. 



Carolina J'ink, or Pink root. 



/?rwuirits.—Tho root of this plant ia much used in b»>tli the rptiuLir ami iloinr-siic 

 practice, na a vennifuce, or in ca.sp.s of worms. It should always bv eniploypil in con- 

 nexioD with aunu> caihartic niediciue, since ii acis as a narcotic, if nut carried fruiiithe 

 lystem, either by iis owb action or that of some other agent. 



Order LXXXVIII. APOCYNE^.. 



Calyx persistent 5-cleft. Corolla hypogynous, 5-lol)ed, rrg- 

 ular, lEstivation twisted. Stamens 5, inserted into the corol- 

 la, alternate witli its lobes. Ovaiirs 2, or 1-2 celled, many 

 seeded. Style 1-2 or wanting. Stigma 1. Fruity usually a fol- 

 licle, double or single, or a capsule. *S^eed numerous. Plants 

 usually with a milky juice. Leaye^ entire. 



GEwrs I APOCYNUM. 



Calyx minute, 5-cleft, persistent. Corolla campanulate, 

 with the limb divided into 5 short, spreading or revolutc lobes, 

 the base furnished with 5 glandular teeth, alternating with the 

 stamens. Stamens 5. Anthers sagitate. Style wanting. — 

 Follicles 2, long, distinct. 



1 A AxDRos.EMiFOLiTJM. Sfemerect, with spreading branches. Leaves 

 ovate, glabrous. Flowtrrs in terminal and lateral cymes. Tube of the corol- 

 la loiiijer than the calyx. Dog's bane. 



White tinged with red. %. June — July. Common. 3-5 feet. 



2 A Ca.vnabi.ntm. Stem erect, branched- Leaves lanceolate, acute on 

 short petioles, glabrous. Flou^rs in paniculate cymes. Calyx about as long 

 as the tube of the corolla. Indian hemp. 



Greenish white. % June — July. Common. 



3 A PuBEscENs. Stem erect. Ixavcs ovate, oblong, on short petioles, mu- 

 cronatc. Flowers in short pubescent cymes, lube ofthe corolla, longer than 

 than the calyx. 



Greenish white. % June — July. Common. 2-3 feet. 



Genus II. AMSONIA. 



Calyx 5-parled. Corolla funnel shaped, with the throat 

 closed. Follicles 2-erect. Seed terete with the summit 

 obliquely truncate. 



1 A Latifolia. Stem erect, glabrous. Leaves oval-lanceolate, on short 

 petioles, alternate ; upper ones acuminate, pubescent along the veins be- 

 neath. Flowers in terminal corymbo.«?e panicles. Follicles linear, long. 



Pale blue. % April— May. Very common. Middle Car. & Ga. 



2 A ~ LlA Sttm erect, smooth, growing in bundles. Leaves\\- 

 near la • . acute, glabrous. Flowers in ternunal corymbs, numerous. — 

 FoUirltt lung slender. 



Pale blue- May— June. Abundant near Macon. 1-2 feet. 



3 A AxGumFOLiA. Stem erect, pubescent, branching. Leaves linear- 



