276 PENTANDRTA. BIGYNIA, apocynum. 



II. p 148. t. 36, Elliott Sk, I. p. 314. Walt. Car, 

 p. 107. Roem.ir Schult. IV. p. 403. 



Root perennial. Stem 2—3 feet high, erect, with spreading 

 branches. Leaves opposite, on short peti(iles, ovate, acute, a 

 little pubescent on the njidrib beneath. Cymes few-flowered- 

 Flowers ab-ui one-fourth of an inch long. Calyx with oblong 

 acute se^ments, much shorter than the corolla. Corolla cam- 

 panulale, pink or purplish-white ; border spreading, with the 

 lobes ovate, acute and reflfxed. Nectary of 5 distinct purple 

 teeth, surrounding the germen. Anthers connected into a 

 cone, surrounding the stigtna, very acute, scarcely half as long 

 as the- corolla. Follicles about 4 niches long, terete, tapering 

 to a point, opening laterally the whole length. Seeds numer- 

 ous, imbricated in the follicle, crowned with a long silky pap- 

 pus. 



Hab. In fields and along hedges ; Rot uncommon. June — July. 



2, A, pubefscens R. Br. : stem erect ; leaves ovate, hoary- 

 pubescent beneath ; cymes pubescent ; corolla longer than 

 the calyx ; border erect. R. Brown in IVeryi. Trans. I. 

 p. 68. Elliott Sk.\. p. 315. R o e m. ^ S chul l.W\ 

 p. 405. A. camiabirMm Mich, FL I. p. 122. Purs h FL 

 p. 179. 



^(gni 2 — 3 feet higli, with a few erect branches. Leaves on short 

 villous petioles, obtuse, but not cordate at the base, mucronate, 

 more or less pubescent beneath. Cymes short. Flowers few, 

 not more than half as large as in the preceding species. Seg 

 ments of the calyx lanceolate. Corolla greenish-white. 



Hab. Borders of fields; not unfrequent. June— July. 



3. A. hypericifolimn -^ it.: leaves oblong, smooth, on 

 very short petioles, mucronate, obtuse and subcordate at the 

 base \ cymes shorter than the leaves ; calyx nearly as long as 

 th<^ tube of the corolla, jii t. Kew.l. p. S04, R.Brown 

 in Wern, Trans. 1, p. 68, R o f. m, ^ Schult. IV, p. 404. 



Stem about 2 feet high. Leaves subsessile, oblong, a little cor- 

 date at ti e base, very acute. Cymes smooth. Flowers smalh 

 greenish-w.iite. Corolla erect, longer than the lanceolate seg- 

 ments of the calyx. 



Hab. In fields and along the borders of woods. June— July. 



4. A, cnnnabinum L. : leaves lanceolate, acute at each 

 end, smooth on both sides ; cymes paniculate ; calyx as long 

 as the tube of the corolla. R. Brown in Wern, TraiinA. 

 p. 68. AiUKew.l,p.303. Wi II d. Sped. p. 1259. exc\. 

 syn. Gron. Elliot t Sk. \. p. 3i5. R o em. ir So hul t. 

 IV. p. 404. 

 Ste7n erectj sler^der, branched, purple, a little glaucous. Leaver 



