72 Rhodora [Aram 
Gray Herbarium and the herbarium of the New England Botanical 
Club, have been augmented by an examination of the collections of 
the Academy of Natural Sciences of Philadelphia generously loaned 
for examination. In this collection, as it was learned by correspond- 
ence with Mr. Bayard Long, the strigose-leaved coastwise plant had 
already been discriminated, Mr. Long’s letter of February 14, 1917, 
making the pertinent statement: “For several years we have had 
separated out a New Jersey thing with rough, generally narrow leaves 
and different-sized fruit, which I had been unable to place. Most 
of it is from Cape May along the edges of the salt marshes, but not 
always: while the broad-leaved, smooth-leaved common plant invari- 
ably looks like a weed or an introduction in our area.” And on one of 
the field-labels of Mr. O. H. Brown, whose abundant collections from 
the Cape May Peninsula in the Herbarium of the Philadelphia Acad- 
emy beautifully display typical P.. pensylvanicum, Mr. Brown made 
the discriminating note: “This seems quite common near the town, 
and seems quite distinct from the P. pennsylvanicum of the fields.” 
The points above discussed may be summarized by the following 
synopsis: 
A. Leaves copiously strigose beneath and often above: uppermost ocreae 
eciliate or frequently bristly-ciliate: achenes 2.2-2.8 mm. broad. 
POLYGONUM PENSYLVANICUM L., var. genuinum. P. pensylvani- 
cum L. Sp. Pl. i. 362 (1753), originally described with “ Folia lanceo- 
lata, acuminata, subtus ad modum scabra.” — Coastal region from 
Massachusetts to Mississippi, northward through the Mississippi basin 
to southern Ontario. The following specimens are characteristic. 
Massacauserrs: Mill Dam, Brighton, August 19, 1853, Wm. Boott; 
North Scituate, September 1, 1897, Sydney Harris; Marshfield, Sep- 
tember 10, 1898, C. H. Morss; Pocasset, Bourne, August 11, 1914, 
F. S. Collins, no. 2906; Hyannis, September 9, 1874, Wm. Boott; 
near Swan Pond, South Yarmouth, September 8, 1907, E. W. Sinnott; 
Yarmouth, September 3, 1910, F. S. Collins, no. 758; meadow, East- 
ham, September 11, 1909, F. S. Collins, no. 758; Chilmark, Martha’s 
Vineyard, August 27, 1895, Sydney Harris; shore of Tashmoo Lake, 
Tisbury, Martha’s Vineyard, July 30, 1911, J. A. Cushman; Nan- 
tucket, August 18, 1878, E. & C. E. Faxon. Ruope ISLAND: damp 
border of Reservoir, Newport, September 21, 1901, W. P. Rich; 
dense wet thickets at borders of sphagnous swamps southwest of 
Harbor Pond, Block Island, August 19, 1913, Fernald & Long, no. 
9409. New Jersey: Seaside Park, Ocean Co., August 30, 1908, E. 
B. Bartram; Delanco, August 23, 1910, C. S. Williamson; Mickleton, 
August 10, 1893, Benjamin Heritage; Avalon, September 7 and 8, 
