484 PLANT LIFE OF ALABAMA. 



Polygonum tenue Michx. Fl. Am. Bor. 1 : 238. 1803. 



Gray, Man. ed. 6, 440. 



Alloghenian and Carolinian areas. From Ontario to the Pacific coast; New Eng- 

 land south to New Jersey, along the mountains to Georgia, and west to Arizona and 

 California. 



ALABAMA: Mountain region. Exposed rocky soil. Dekalb County, Mentone. 

 September. Frequent on Lookout Mountain. 



Type locality: "Hab. in Canada." 



Polygonum maritimum L. Sp. PI. 1 : 361. 1753. 



Polygonum aviculare var. littorale Chap. Fl. 390. 



Ell. Sk. 1 : 453. Gray, Man. ed. 6, 439. 



EUROPE. 



Canadian zone to Louisianian area. Seacoast from Nova Scotia to Georgia and 

 Alabama. 



ALABAMA : Mobile County, banks of Alabama River, near the shipping. To all 

 appearance adventive with ballast. August, September. Perennial. 



Type locality: "Hab. Monspelii, in Italia, Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



Polygonum bollard! All. Fl. Ped. 2 : 207. 1785. 



Britt. & Br. 111. Fl. 1 : 562. ' 



SOUTHERN EUROPE, WESTERN ASIA. 



Louisianian area. 



ALABAMA: Adventive with ballast. Mobile, 1884, and September. 1893. Stems 

 numerous from the same root; prostra.te, rigid, over 2 feet long, forming large 

 patches. Annual. 



Type locality: "In arvis inter Bussolino e Bardassau [Piedmont]." 



Herb. Geol. Surv. Herb. Mohr. 



Polygonum lapathifolium L. Sp. PI. 1 : 360. 1753. 

 Gray, Man. ed. 6, 440. Coulter, Contr. Nat. Herb. 2 : 376. 

 ALABAMA : Naturalized about Mobile. June ; rare. Annual. 

 Type locality : " Hab. in Gallia." 

 Herb. Geol. Surv. Herb. Mohr. 



Polygonum incarnatum Ell. Sk. 1 : 456. 1817. 



Polygonum lapathifolium incarnatum Gray, Man. ed. 6, 440. 1890. 



Ell. Sk. I.e. Gray, Man. 1. c. Chap. Fl. 388. Coulter, Contr. Nat. Herb. 2 : 376. 



Alleghenian to Louisianian area. Nova Scotia, New Brunswick, Ontario, British 

 Columbia, Vancouver's Island; from Vermont and western New York west to 

 Nebraska, and throughout the Ohio Valley to Missouri, Arkansas, and Colorado, 

 south to Florida and eastern Texas. 



ALABAMA: Over the State. Low cultivated ground, damp places. C oilman, 

 Montgomery, and Mobile counties. Flowers flesh color. September, October; fre- 

 quent. Annual. 



Type locality: "Ditches and shallow ponds [South Carolina and Georgia]." 



Herb. Geol. Surv. Herb. Mohr. 



Polygonum pennsylvanicum L. Sp. PI. 1 : 362. 1753. 



Ell. Sk. 1 : 457. Gray, Man. ed. 6, 440. Chap. Fl. 388. Coulter, Contr. Nat. Herb. 

 2 : 376. 



NORTHERN MEXICO. 



Alleghenian to Louisianian area. New Brunswick and Ontario ; New England 

 west to Dakota, Nebraska, and California, south to Florida and Texas. 



ALABAMA: Over the State. Low damp places, ditches. Montgomery and Mobile 

 counties. Flowers rose color. July to September ; frequent. Annual. 



Type locality : "Hab. in Pensylvania. Kalm." 



Herb. Geol. Surv. Herb. Mohr. 



Polygonum portoricense Bertero, Meiss. in DC. Prodr. 14 : 121. 1856. 



DENSE-FLOWERED PERSICAKIA. 



Polygonum densiflorum Meiss. in Mart. Fl. Bras. 5 : 13. 1855. Not Blume. 

 Chap. Fl. 388. Britt. & Br. 111. Fl. 1:556,/. 1822. Griseb. Fl. Brit. W. Ind. 161 

 (as Polygonum glabrum Willd.). 

 WEST INDIES TO BRAZIL, E ASTERN ASIA. 

 Carolinian and Louisianiau areas. Florida, eastern Texas, southeastern Missouri. 



