3C MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA COLLEGE. 



[Plate 5.J 

 5. Polygonum Newberryi Small. 

 Polygonum Newberryi Small, Bull. Torr. Club, 21 : 170 (1894). 



Perennial, dull green, fleshy and stout, more or less puberulent and scurfy through- 

 out or sometimes glabrous. Stem erect, or nearly so, 1-4 dm. long, stout, slightly chan- 

 neled, more or less flexuous, nearly simple or short-branched above, the upper internodes 

 one-third as long as the lower ones; leaves ovate or broadly oblong-ovate, 1-4.5 cm. long, 

 .5-3 cm. broad, the upper subsessile, the lower short-petioled, obtuse or subapiculate at 

 the apex, truncate, obtuse or acute at the base, becoming more or less rugose-wrinkled 

 with age and in drying, attached near the base of the ocreae; ocreae funnelform, .5-1.5 

 mm. long, light brown, puberulent or nearly glabrous, thin and brittle; inflorescence 

 axillary, consisting of racemes or spicate racemes ; racemes narrow, 1-2 cm. long, few- 

 flowered, sometimes interrupted; ocreolae funnelform, 1 mm. long, acutish; pedicels, 1 

 mm. long; calyx greenish, 3 mm. long, five-parted to near the base, the segments oblong 

 or oblong-elliptic, the outer ones larger than the inner ; stamens eight, included ; style 1 

 mm. long, three-parted, included; achene triquetrous, 4-4^5 mm. long, obovoid, some- 

 times unsymmetrical, light brown, smooth and shining, somewhat exserted at maturity. 



Alpine and subalpine regions in the mountains of Oregon and Washington. 



