PEMTANDRtA DIGYNIA. Goiiolobium. 
Vincetoxicum gonocarpus. Walt. fi. car. 104. 
In shady woods of Carolina and Virginia. Ip . Jane. 
v. v. Flowers dark purple or dirty yellow. 
2. G. sarmentis petiolisque hirsutissimis, foliis sensim acu- hirsutum, 
minatis utrinque pubescentibus, corollae laciniis ob- 
Jongo-ovalibus obtusis, folliculis oblongis muricatis. — * 
Mich.fi. amer. 1 . p. 119 . 
Vincetoxicum acanthocarpos. Walt.fi. car. 104. 
In hedges, near rivulets : Pensylvania to Carolina. I/ . 
June, July. v. v. Flowers dark purple. 
3. G. sarmentis glabriuscnlis, foliis subconoideo-cordatis laeve. 
sensim acutis nervis subtus puberulis, floribus glabris, 
corollae laciniis ovali-oblongis obtusi usculis, folliculis 
laevibus. Mich.fi. amer . \.p. 11 Q. 
Cynanchum caroiinense. Jac. ic. 2. t. 342 ? 
In hedges on the banks of the Mississippi. 11/. June. 
v. v. s. fr. Flowers dark purple. 
Cynanchum obliquum. Jacq. ic. 2. t. 241. probably is 
another species of this genus. I have seen the plant 
in flower, but without fruit, in a cultivated state, but 
never observed it growing spontaneously $ consequently 
I shall omit it, as a doubtful North American plant. 
223. AFOCYNUM. Gen.pl.A 26 . 
1. A. caule rectiusculo patente, foliis ovatis utrinque gla- androscemijb • 
bris, cymis lateralibus et terminalibus glabris, corollis Hum. 
limbo patentibus. — Willd. sp. pl. 1. p. 1259 . 
Icon. Dod. mem. t. 50. 
In fields and along the edges of woods ; Canada to Ca- 
rolina. 11 . July. v. v. Flowers pale red with darker 
stripes. 
2. A. caule rectiusculo, foliis oblongo-ovalibus subtus can- cannabinum . 
dicante-pubescentibus, paniculis pubescentibus, corol- 
lis limbo erectis. — Willd. sp. pl. I. p. 12 5g. 
Icon. Pluk. aim. t. 13. f. 1. 
In sandy fields and woods 5 common. % . June, July. 
v. v. Flowers yellowish-green, small. The plant is 
generally called Indian Hemp. 
3. A. caule erectiusculo, foliis oblongis cordatis glabris, cy* hypericifo- 
mis folio brevioribus. Willd. sp.pl. 1. p. 12(50. Hum. 
A. sibiricum. Jacq. hort. 3. t. 66. 
On the gravelly shores of rivers: New York to Vir- 
ginia j scarce. Ij. . July, Aug, v. v. Flowers very 
n 2 
