74. MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA COLLEGE. 
[Puate 24. ] 
24. Polygonum Careyi Olney. 
Polygonum Careyi Olney, Proc. Proy. Frank. Soc. 1: 29 (1847); A. Gray, Man. 
386; Meisner in DC. Prodr. 14: 111; Wood, Cl. Bk. Ed. 41, 368; Am. Bot. & Fl. 283. 
Annual, pubescent and glandular throughout, usually slender. Stem erect, 6-12 
dm. tall, simple or sparingly branched aboye, rough with stiff and glandular 
hairs, channeled; leaves varying from oblong-lanceolate to linear-lanceolate, 4-27 
em. long, .2-4.6 em. broad, acuminate at both ends, hispid, especially about the 
midrib, ciliate, sparingly punctate, short-petioled or subsessile, arising from about 
the middle of the ocreae, the uppermost often nearly linear; ocreae cylindric or 
funnelform, .8-1.7 cm. long, somewhat hispid, fringed with long bristles; inflorescence 
paniculate, the ultimate divisions very narrow, spicate racemes; racemes linear or linear- 
oblong, 2-6 em. long, .4—.7 em. broad, loosely flowered, drooping; ocreolae continuous, 
funnelform, oblique, 2-3 mm. long, sparingly hispid, fringed with stout bristles; pedi- 
cels at length 3-4 mm. long, somewhat angled; calyx about 2 mm. long, purplish, 
five-parted to below the middle, the segments strongly nerved and obtuse; stamens 
five or sometimes eight, included; style two-cleft to the middle, 1-1.5 mm. long, 
included; achene lenticular, 2-2.5 mm. long, broadly obovoid, strongly biconvex, short- 
pointed, black, very smooth and shining. 
Maine to northeastern Pennsylvania and southern New Jersey. 
