PENTANDRIA DIGYNI1A. Gonolobium. 179 
Vincetoxicum gonocarpus. Walt. fl. car. 104. 
In shady woods of Carolina and Virginia. M. June. 
v v, Flowers dark purple or dirty yellow. 
2. G. sarmentis petiolisque hitsutissimis, foliis sensim acu- hirsutum. 
minatis utrinque pubescentibus, corolla laciniis ob- 
longo-ovalibus obtusis, folliculis oblongis muricatis,— 
Mich. fl. amer. 1. p.119. T t 
Vincetoxicum acanthocarpos. Walt. fl. car. 104. 
. In hedges, near rivulets : .Pensylvania to Carolina, M. 
June, July. v.v. . Flowers dark purple. 
3. G. sarmentis glabriusculis, foliis subconoideo-cordatis leve. 
sensim acutis nervis subtus puberulis, floribus glabris, 
corolla laciniis ovali-oblongis obtusiusculis, folliculis 
levibus, Mich. fl. amer. V. p. 119. 
Cynanchum carolinense. Jac. ic. 2. t. 842? 3 
in hedges on the banks of the Mississippi. 2. June. 
v. v. s. fr. Flowers dark purple. i 
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. APOCYNUM. Gen. pl. 426. 
1. A. caule rectiusculo patente, foliis ovatis utrinque gla- androseemifo- 
„bris, cymis ejaan a et terminalibus glabris, corollis lium, 
; limbo patentibus.— Willd, sp. pl. 1. p. 1259. 
. icon. Dod. mem. t. 50. 
In fields and along the edges of woods : Canada to Ca- 
-=  Tolina. M. July. v.v. Flowers pale red with darker 
-. Stripes, | 
2. A. caule rectiusculo, foliis oblongo-ovalibus subtus can- cannabinum. 
` Gicante-pubescentibus, paniculis pubescentibus, corol- 
dis limbo erectis.— Willd. sp. pl, 1. p. 1259. $ 
leon. Pluk. alm. t. 13. f. 1. hos Ded. 
In sandy fields and woods; common.  )f.June, July d 
v.v. Flowers yellowish-green, small. The plant is 
generally called Indian Hemp. ! ores ot is Rum 
3. A. caule erectiusculo, foliis oblongis cordatis glabris, cy» — Aypericifo- 
This folio brevioribus. Willd, sp. pl. 1. p: 1260. lum. 
A. sibiricum. Jac. hort. 3. t. 66. uera 
On the g avelly pi of rivers; New York to Vir- 
Binia; scarce. /.July, Aug. v.v. Flowers very 
N2 i 
