52 Rhodora [Marcu 
Maine: St. Francis, 1881, Furbish; Orono, 1892, Fernald; near Mt. 
Katahdin, 1900, Churchill; Rum Mt., 1895, Fernald; Russell Mt., 
Blanchard, 1897, Fernald; Dover, 1895, Fernald; Mt. Bige'ow, 1915, 
Knowlton; Farmington, 1915, Knowlton; Rangeley, 1894, Furbish; 
Buckfield, 1878, Allen; Hartford, 1892, Parlin; Dedham, 1916, 
Fernald & Long, no. 14,281; Orland, Atkins; Mt. Megunticook, 
Camden, 1913, Fernald, no. 10,120; South Poland, 1893, 1894, Furbish. 
New HaMrsHIRE: near summit of Mt. Clinton, 1894, T. O. Fuller; 
Mt. Resolution, Sargent’s Purchase, 1912, Pease, no. 14,044; n. 
peak of Mt. Hope, Hadley Grant, 1915, Pease, no. 16,495; Shelburne, 
C. E. Faxon; Randolph, 1893, Williams, 1908, Pease, no. 11,417; 
Dalton Mt., Dalton, 1914, Pease, no. 16,094; Mt. Prospect, Lan- 
caster, 1913, Pease, no. 14,214; Woodstock, 1915, Fernald, no. 11,833; 
Atwell Hill, Piermont, July 26, 1910, E. F. Williams (TYPE in Gray 
Herb.); Breezy Point, Warren, 1907, Williams; Gilmanton, 1907, 
Cushman & Sanford, no. 1271. Vermont: Willoughby, 1896, 
Kennedy; Townshend, 1914, Wheeler; mountain slope, Manchester, 
1898, Day, no. 114. Massacuusetrts: Buckland, 1904, Forbes; 
Great Barrington, 1901, Hoffmann. Connecticut: Bolton, Weath- 
erby. New York: Stony Creek Ponds, Adirondack Mts., 1899, 
Rowlee, Wiegand & Hastings. PENNSYLVANIA: Ponoco Plateau, 
1904, Harshberger. ONTARIO: Nipigon L., 1912, Pulling. Micui- 
GAN: Black R., 1868, Gillman; Keweenaw Co., 1890, “rare,” Farwell, 
no. 304. 
Var. paucifolia, it will be seen from the above stations, is particu- 
larly characteristic of the upland regions of northern New England, 
often ascending nearly to timber-line. In most of this area it is the 
only variant known, but eastward, in the Maritime Provinces, it 
meets typical P. chlorantha and is sometimes associated with it and 
southward its boundaries approach the northern limits of var. con- 
voluta. In the Northwest, in British Columbia and Washington, 
occurs a form of P. chlorantha strongly suggesting var. paucifolia 
but with more rounded leaf-blades. "The scanty material at hand 
is too inadequate and this form is for the present left with true P. 
chlorantha. 
Var. convoluta (Barton), n. comb. P. convoluta Barton, Fl. 
Philad. Prodr. 50 (1815). ? P. cordata Andres, Allgem. Bot. Zeitschr. 
xix. 82 (1913).—Southeastern and centr. Maine to Maryland and 
Nebraska. 
In its comparatively large petals and leaves var. convuluta some- 
what suggests small plants of P. americana Sweet, but it has all the 
technical points of P. chlorantha. In his original publication Barton 
described P. convoluta merely by contrasting it with P. americana 
