OCTANDRIA. TRIGYNIA. ^56 



phlning. Hab. On the sandy beach of the sea, around 

 Kgj^- Harbour, New Jersey; possesses much the aspect of 

 P. aviculare, but produces flowers which are conspicuous 

 and eiejrant, and occurs in situations which pronounce it 

 native; not naiurahzed as aviculare,t[ie seed is also remark- 

 ably distinct. <yi. marithmim ot Europe has never yet been 

 found on the Aniencan sea-coast. Qbs. The wuole 

 plane g-laucous, very diffuse, branches v.'ith numerous 

 nodes, stipules lacerate, 3 to 5-flowered, flowers white 

 and exserted, sej^ments obtuse; filaments of the stamina 

 very short and dilated. 3. ramosissimiim. 4. (enue. 5. Hy- 

 droplperoides. 6. mite. 7 . hirsutim. The whole plant hirsute- 

 ly pubesceni; leaves lanceolate. S. virginianum. 9. bistor- 

 toides. Ph. This spec;.-s is probably a variety of bistovta. 

 10. vivipai'um. 11. coccinenm. vSparin.e^ly met witii in the 

 vicinity of Philadelphia. 12. peiisyhanicum. 12. Persicu- 

 via. 14 orientale. Partly naturalized. 



— Leaves sagittate or cordate. 



15. sagittatmn. 16. arifolium. 17, Fagopyrum. Buck- 

 wheat, merely cultivated, not. naturalized. 18. Convolvu- 

 lus. Introduced. 19. cilinode. 20. scandens. 



§ II. PoLYGOXELLA. Calix 5-leaved. Oehrcde l-fioiver- 

 ed; racemes dicholomously paniculate; leaves spathulate, 

 small, (flowers often dioicous.)— Stamens 8. Stigmas 3, 

 subcapitate. 



21. articulattm. Annual; flowers hermaphrodite, nutant, 

 as long as the capillary peduncles; peduncle articulated 

 near its base; fruit acute-angled, as long as the spreading 

 calix; flowering stems nearly naked; leares spathulate- 

 linear obtuse. Hab. Canada to Virginia, in sandy and 

 barren soil: also on the banks of Fox River and Lake Mi- 

 chigan (Michigan Territory.) A very elegant species 

 with spreading rosaceous flowers, sometimes white. Obs. 

 Stem about a foot, in flower mostly naked, much branch- 

 ed, branches erect, copiously floriferous. Flowers spread- 

 ing and obtuse, anthers purple; styles none; stigmas 3, 

 subcapitate as in the 2 following species; ochrex of the 

 flowers truncate, unidentate also as in the 2 following, 

 but larger. 



22. * gracile, Dioicous: glaucous, annual; racemes very 

 slender, filiform; flowers (.lefiected, at first minute, much 

 longer than the peduncles; peduncle articulated to the 

 calix; fruit acuminated longer tlian the connivent calix; . 

 flowering stems nearly naked; leaves spathulate-linear, 

 obtuse. Hab. In Georgia? Dr. JioUhvyn. Very similar 

 to the preceding in habit, although a very distinct spe- 

 cies, about a foot high, much less branched than P. ar. 

 ticnlatum, branches very slender, somewhat spreading, 

 coming out above the ochrex, perfectly lateral, unaccom- 



