APOCYNUM. PENTANDRIA. DIGYNIA. 277 



2 — 3 inches long, and three-fourths of an inch broad, on short 

 petioles, attenuate at the base, very smooth. Cymes many- 

 flowered, paniculate, smooth. Segments of the calyx subu- 

 late, about as long as tlie tube of the corolla. Corolla small, 

 campanulate, green ; border erect. Follicles long, very 

 slender. 

 Hab. In fields and along the borders of woods; rare. On the 

 Island of New-York. Cambridge, New-York. Steven- 

 son. 



I have followed R. Brown in characterizing the species 

 of this genus. There is some confusion respecting the syno- 

 nymy of the three last species, which I am unable to re- 

 move. 



187. PERIPLOCA. L. 



Calyx 5-cleft. Corolla rotate, flat; orifice surrounded 

 with an urceolate 5 -cleft crown ; segments awned. 

 Anthers bearded on the back ; pollinia} dilated at the 

 apex, and united to the corpuscules of the stigma, so- 

 litary, composed of 4 confluent grains. Style 1 ; stig- 

 ma pentagonal Follicles 2, cylindrical, smooth. Seeds 

 comose. "" 7?. Brown in JVern. Trans. I. p. 57. 

 Nutt. Gen. I. p. 162. Roera. ^ Schult. Gen, 

 1109. Nat. Ord, AscLEPiADE^ i?, Brown, Ai>o» 

 CINE.'E Ju s s. 



P. grcBca L. : flowers hairy within, and terminal. Willd. 

 S/)fc. I, p. 1248. Duham.Arb.\\.^.lQA.\..'2\. Nutt. 

 L c. jMuhl. Cat.ip.27. ^oem. & ScAm//. VJ, p. 126. 



A climbing shrub 10 — 15 feet high. Leaves opposite, 3—4 inches 

 long, on short petioles, ovate, acuminate, smooth. Flowers 

 in axillary corymbs, on long peduncles. Calyx minute ; seg' 

 merits lanceolate, acute. Corolla dark brownish-purple; seg- 

 ments linear, obtuse, very hairy on the inner side. Follicles 

 about 2 inches long, a little ventricose. 



Hab. In the western parts of the State of New-York, either in- 

 digenous or naturalized. JVu tt all. In Pennsylvania. Mu h^ 

 lenber g. 



I have never seen this plant except in gardens, and suspect 

 it is only naturalized in North-America. It is not described in 

 Fursh's Flora. 



ISO. GONOLOBUS. L. 



Corolla rotate, deeply 5 -parted. Stamineal crown 



f A name given by Mr. JSTtt r r a / i to the " poUinis massx" of It. Br a; 



