100 MEMOIES FROM THE DEPAETMENI OF BOTANY OF COLUMBIA COLLEGE. 



[Plate 37.] 

 37. Polygonum maritimum Linnaeus. 



PoJyyonum marifimum Linnaeus, Sp. PI. 361. (1753); Gmelin, Syst. Nat. 2: 639; 

 Willdenow, Sp. PL 2: 449; Persoon, Syn. 1: 439; Muhlenberg, Cat. 40; Elliott, Bot. 

 S. C. & Ga. 1 : 453 ; Sprengel, Syst. 2 : 256 ; Meisner, Monog. 89 and in DC. Prodr. 

 14: 88; Torrey, Fl. N. Y. 2: 152; Eaton & Wright, N. A. Bot. Ed. 8, 367; A. Gray, 

 I\Ian. 388 ; Darby, Bot. S. States, 488 ; Wood, Am. Bot. and FL 283. 



Poluyonmii marinmn Pursh, Fl. Am. Sept. 269 (1814) r Eaton, Man. 370; Elliott, 

 Bot. S. C. & Ga. 1 : 453. 



Polygonum glaucum Nuttall, Gen. 1: 254 (1818); Torrey, Fl. 1: 401, Comp. 171; 

 Sprengel, Syst. 2 : 256 ; Beck, Bot. 300. 



Perennial or sometimes annual, glaucous and glabrous throughout, somewhat 

 fleshy. Stem prostrate, 2-7 dm. long, ridged, branched from the base and throughout, 

 usually stout; leaves ovate, oblong or linear-oblong, .5-3 cm. long, .2-. 8 cm. broad, 

 generally equalling or exceeding the internodes of the stem and branches, rather fleshy, 

 obtuse, re^'olute, acuminate at the base, strongly nerved especially beneath, somewhat 

 rugose above, joined to the ocreae by conspicuous articulations, mostly subsessile; ocreae 

 funnelform, oblique, .3-1.5 cm. long, two-parted, at length lacerate, bright and silvery, 

 becoming brown at the base; inflorescence axillary, consisting of clusters of two or 

 three flowers ; pedicels slender, 3-4 mm. long ; calj^x green about the base, 3 mm. long, 

 five-parted to near the base, the segments obovate, petaloid, rather obtuse, white or 

 pink with a green rib ; stamens eight, included ; style .4 mm. long, three-parted to the 

 base, included except at maturity; achene triquetrous, 3.5-4 mm. long, ovoid, acute or 

 acuminate, chestnut-colored, smooth and shining or minutely granular, conspicuously 

 surpassing the calyx. 



Along the seacoast from Maine to Georgia. Also on the coast of Europe. 



