408 OCTANDRIA. TRIGYNIA. polygonum. 



bany. L. C. Beck. Granby, Connecticut. Eaton. Near 

 Cambridge, Massachusetts. Bigelow and Oakes. Sep- 

 tember. 



A singular species, belonging to Mi c haux*s Polyg»- 

 NELLA. Is it not allied to Rumex ? 



* * * * Flowers in racemose fianicles ; (leaves subcordate or 

 sagittate.) Fagopyrum. 



14. P. Convolvulus L. : flowers octandrous; stales S- 

 cleft; leaves oblong, hastate-cordate ; stem climbing, angu- 

 lar, somewhat scabrous ; segments of the perianth obtusely 

 carinate. Willd, Spec. II. p. 445. Smith FL Brit. 1. p. 

 430. £«^. J5o/. t. 941. jlf I c/t. H. I. p. 241. Pursh 

 Fl. I. p. 273. B i g, Bost. p. 94. Elliott Sk. L p. 459. 



Jioot annual. Stem long, climbing on other plants, or running 

 over the ground. Leaves petiolate, cordate, with the lobes a 

 little spreading and acute. Racemes terminal, interrupted, 

 leafy. Perianth tinged with green and purple; the 3 exterior 

 segments obtusely carinate. Style very short, with 3 spread- 

 ing stigmas. J^ut acutely triangular 



Hab. In sandy fields and cultivated grounds. July — Septeniber. 



15- P. cilinode Mich.: flowers octandrous; styles 3- 

 cleft ; leaves cordate ; stipules rather acute, ciliate at the 

 base; stem angular, climbing or prostrate, pubescent; seg- 

 ments of the perianth obtusely carinate. M ich. Fl. I. p. 

 241. Pursh FL I. p. 273. 



Root annual. Whole plant minutely pubescent. Stem mostly 

 prostrate, with obtuse angles of a reddish colour. Leaves pe- 

 tiolate, subhastate-cordate, acuminate. Stifiules mostly acute, 

 fringed with reflexed hairs at the base. Racemes paniculate, 

 terminal, somewhat leafy. Perianth pale rose-colour or green- 

 ish ; segments a little spreading, obtusely carinate, but not 

 winged. Mit triquetrous, 



Hab. On the sides of hills. Deerfield, Massachusetts. Coo ley 

 and Hitchcock. Near Williams College, Mass. Dewey. 

 Danvers, Mass. Oakes. Fairfield, New-York. Ha dley^ 

 August. 



16. P. scandens L. : flowers octandrous, trigynous: leaves 

 broadly cordate; stipules truncate, naked; stem climbing, 

 smooth ; segments of the perianth winged. Willd. Spec, 

 II. p. 436. Mich. Fl.].p.2i0. P ur s h Fl. \. p. '273. 

 Big. Bost. 1^.95. Ellio tt Sk. 1. j^. 459. Helxine scan- 

 dens volubilis. Gron, Virg. 157. Co Id. Novel. 93. Plu k. 

 Ahn. t. 177. f. 7. 



R9ot annual. Stem 4 — 5-angled, very long, purple. Leaves pe- 

 tiolate, acuminate, cordate, with the sinus broad and obtuse. 

 Stipules short. Racemes axillary ; flowers aggregate, large. 



