158 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA COLLEGE. 



[Plate 66.] 

 67. Polygonum Zuccarinii Small. 



Polygonum cuspidatum Siebold & Zuccarini, Fl. Japon. Fam. Nat. 2 : 84 (1846), 

 not Willd. ; Meisner in DC. Prodr. 14 : 135. 



Perennial, stout, suflfruticose, more or less scurfy. Stem erect, 12-24 dm. tall, at 

 length woody, more or less branched, terete or somewhat angled and channeled, some- 

 times flexuous; leaves oblong-ovate, orbicular-ovate or ovate-lanceolate, 2-11 cm. long, 

 2.5-8 cm. broad, short-acuminate, petioled, truncate or subcordate, undulate, conspicu- 

 ously reticulated on both sides, minutely serrate ; petioles 1-3 cm. long ; ocreae funnel- 

 form, oblique, 3-4 mm. long, glabrous, early falling away; inflorescence consisting of 

 short axillary and terminal panicled racemes; racemes 6-12 cm. long, more or less pubes- 

 cent, loosely many-flowered ; pedicels about 4 mm. long, articulated near the middle ; 

 calyx greenish white, 8-9 mm. long, five-parted to below the middle, the outer segments 

 very broadly winged in fruit; stamens eight, included; style .9 mm. long, three-parted 

 to near the base, included; achene triquetrous, 3 mm. long, narrowly oblong, black, 

 smooth and shining. 



Vicinity of Philadelphia, Pennsylvania; Schenectady, New York, and Atlantic 

 Highlands, New Jersey. Naturalized from Japan. 



