150 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA COLLEGE. 



[Plate 62.] 

 63. Polygonum cilinode Michaux. 



Polygonum cilinode Michaux, Fl. Bor. Am. 1: 241 (1803); Persoon, Syn. 1:441; 

 Muhlenberg, Cat. 41; Pursh, Fl. Am. Sept. 273; Bigelow, Fl. Best. 159; Eaton, Man. 

 372; Sprengel, Syst. 2: 254; Torrey, Fl. 1 : 406, Comp. 173; Meisner, Monog. 63 and in 

 DC. Prodr. 14: 134; Hooker, Fl. Bor. Am. 2: 131; Beck, Bot. 303; Eaton & Wright, 

 N. A. Bot. Ed. 8, 368 ; A. Gray, Man. 390 ; Wood, Am. Bot. and Fl. 283 ; Chapman, 

 Fl. S. States, 391. 



Annual or perennial, slender, sparingly pubescent throughout, of a reddish or 

 reddish green tint. Stem prostrate or extensively twining, 6-25 dm. long, simple or 

 diifusely branched, red or reddish; leaves broadly ovate or ovate-lanceolate, 2-8 cm. 

 long, 1-6 cm. broad, acute or acuminate, cordate or subcordate, sometimes inclined to be 

 hastate, petioled, undulate, somewhat crisped, minutely ciliate, often prominently 

 nerved on the lower surface; petioles 1-4 cm. long; ocreae funnelform, very oblique, 3-4 

 mm. long, acutish, fringed with reflexed bristles at the base ; inflorescence consisting of 

 axillary and terminal panicled racemes; racemes 1-10 cm. long, loosely flowered, inter- 

 rupted; pedicels wiry, 3-4 mm. long, reflexed; calyx white, 3-4 mm. long, five-parted 

 to below the middle or near the base, the segments oblong or obovate, obtuse, the three 

 outer ones often inconspicuously keeled; stamens six or eight, included; style .3 mm. 

 long, three-parted to the base, included ; achene triquetrous, 3 mm. long, broadly oblong 

 or often approaching ovoid, black, very smooth and shining. 



From Nova Scotia and New Brunswick to the Rocky Mountains south to the Great 

 Lake Region ; also in and near the Alleghany Mountains. 



