88 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA COLLEGE. 
[Puare 31.] 
31. Polygonum punctatum Elliott. 
Polygonum punctatum Elliott, Bot. S.C. and Ga. 1: 445 (1817); Eaton, Man. 370; 
Barton, Comp. Fl. Phil. 187; Torrey, Fl. 1: 402, Comp. 171; Sprengel, ie 2: 253; 
Darlington, Florula Cest. 48, FL. Cest. 248; Beck, Bot. 301; Eaton & Wright, N. A. Bot. 
Ed. 8, 367; Wood, Cl. Bk. Ed. 41, 474; Meisner in Mart. Fl. Bras. 5: 18; ue Bot. 
S. States, 489. 
Polygonum Hydropiper Michaux, Fl. Bor. Am. 1: 238 (1803), not Linnaeus. 
Polygonum hydropiperoides Pursh, Fl. Am. Sept. 270 (1814), not Michaux. 
Polygonum acre Humboldt, Bonpland & Kunth, Nov. Gen. 2: 179 (1817), not 
Lamarck; Meisner, Monog. 77, in Mart. FJ. Bras. 5: 18 and in DC. Prodr. 14: 107; 
Sprengel, Syst. 2: 253; A. Gray, Man. 373; Chapman, FI. 8. States, 389; Wood, Am. 
Bot. and Fl. 283; Grisebach, Fl. Br. W. Ind. 161; 8. Watson, Bot. Calif. 2: 14; Reade, 
Pl. Bermuda. 69; Greene, Fl. Francis. 136, Man. Bay Reg. Bot. 42. 
Polygonum antihaemorrhoidale Martius, Reise, 2: 550 (1823); Meisner in Mart. FL. 
Bras. 5: 18. 
Polygonum antihaemorrhoidale var. aquatile Martius, Reise, 2: 550 (18235); Meisner 
me Vert. Kl. Bras, 6:18. ¢ 5. fF. 7. 
Polygonum antihaemorrhoidale var. riparium Martius, Reise, 2: 550 (1823); Meisner 
jo Mart. Pi. Bras. 5: 18. ig. f. 2. 
Polygonum maritimum Vellozo, Fl. Flaum. 4: t. 39 (1827)? 
Polygonum acre var. confertiflorum Meisner in DC. Prodr. 14: 108 (1856). 
Annual or perennial, mostly glabrous throughout. Stem erect or ascending, rarely 
creeping, 3-11 dm. long, simple or much branched; leayes varying from lanceolate to 
narrowly lanceolate, often oblong-lanceolate, 2-16 em. long, .6-3.7 em. broad, acuminate 
at both ends, usually glabrous, conspicuously punctate, often bearing a few short hairs 
on the midrib, ciliate, short-petioled; ocreae cylindric on the younger parts, broken and 
obliquely funnelform on the older portions, 1-1.5 em. long, glabrous or sometimes spar- 
ingly strigillose, fringed with rather long bristles; inflorescence paniculate, the ultimate 
divisions ending in spicate racemes; racemes linear, 1-6 cm. long, erect or rarely slightly 
drooping, somewhat interrupted below, loosely flowered; ocreolae funnelform, 2.5-3 mm. 
long, fringed with a few short bristles, mostly imbricated; pedicels 3-4 mm. long, slender; 
calyx greenish, about 2 mm. long, five-parted to below the middle, conspicuously gland- 
ular, the segments oblong or ovate, obtuse, punctate; stamens eight, included; style 
