369 
hold it separate from that plant. The achene is much larger, the 
wings of the calyx much broader and more emarginate at the 
apex ; the pedicels are also longer than in P. dumetorum. 
71. POLYGONUM CRISTATUM, Engelm and Gray, Pl. Lindh. 
Boston Journ. Nat. Hist. v. 259 (1847). 
Texas (Lindheimer, 296); South Carolina: Santee Canal 
(Ravenel). 
The range of this species of which so little is known, has been 
extended far to the east by specimens of Ravenel, collected on 
the Santee Canal, S. C., which have been preserved for many 
years in the Gray Herbarium, under the name of P. scandens. 
_ There may be much more of it scattered through the South, and 
_ probably it has been overlooked on account of its close rela- 
tionship to that species. 
72. POLYGONUM CILINODE, Michx. Fl. Bor. Am. i. 241 (1803). 
Canada, North Bay (Britton) ; Wisconsin: Milton (Sandberg); 
_ Massachusetts: Williamstown (Torrey) ; New York: Alder Lake 
_ (Rusby), Onteora Mountains (Miss Vail) ; Pennsylvania: Pocono 
_ Mountains (Wolle), Perry and York Counties (Small). 
_ 73. POLYGONUM CUSPIDATUM, Sieb. and Zucc. Fl. Japon. Fam. 
Nat. ii. 84 (1846). 
E Naturalized near Philadelphia, Pennsylvania (C. E. Smith); 
also on the banks of the Mohawk River below the Aqueduct, 
_ Schnectady N. Y. (Wibbe). | 
| SECTION VIIIL—ECHINOCAULON. 
74. POLYGONUM SAGITTATUM, L. Sp. Pl. 363 (1753) 
4 Massachusetts: Ipswich (Morong); New York: West Point 
_ Torrey); Minnesota : Hennepin Co. (Sandberg); Ohio: Canton 
(Riehl); Nebraska: Long Pine (Swezey, 113); Pennsylvania : 
Harrisburg (Small), Easton (Porter); Virginia: Iron Mountains 
(Small); West Virginia: Monongalia Co. (Millspaugh, 793); Flor- 
> ida: (Chapman). : 
Var. PUBESCENS, Keller, Bull. Soc. Bot. Belg. xxx. 45 (1891). 
New York, wet grounds near Troy (A. Puissant according to 
_ Keller.) ‘ si 
: 75. POLYGONUM MEISNERIANUM, C. &. S., Linnea, 11. 40 
(1828), | 
