1914] Knowlton,— Flora of the Sandy River Valley 11 
Ruopona, xi. 48 (1909); Fernald & Wiegand, Ruopora, xii. 140 (1910). 
Pentaphyllum palustre rubrum, crassis, & villosis foliis Pluk. Phyt. 
t. cexii. f. 2 (1692). Comarum palustre, B. villosum Pers. Syn. ii. 58 
(1807); Rydb. Mem. Dept. Bot. Columbia Univ. ii. 163 (1898) and 
N. A. Fl. xxii. 355 (1908). | C. tomentosum Raf. Aut. Bot. 170 (1840).— 
Reported but apparently rare or of doubtful status in Sweden, Ireland, 
Iceland and Greenland (see notes above), and Germany and Hungary 
(records questioned by Wolf, Mon. Pot. 76). In North America 
definitely known from the following stations. QuEkmBEc: Alright 
Island, Magdalen Islands, Fernald, Long & St. John, no. 7619. Nova 
Scotia: near Pictou, Howe & Lang, no. 478. Mae: Princeton, 
Fernald & Wiegand (Fernald, no. 1920); Moose Island, Passamaquoddy 
Bay, Fernald & Wiegand (Fernald, no. 1921); Marshfield, Kate Fur- 
bish; Merchants’ Island, Hancock Co., N. T. Kidder; Readfield, 
Kate Furbish. New York: Wellesley Island, Jefferson Co. (transi- 
tional form), Robinson & Mazon, no. 9; Chatauqua Co., M. S. Pettit. 
Minnesota: Lake Kilpatrick, Cass Co., C. A. Ballard; Fort Snelling, 
E. A. Mearns. MaNriTOBA: Lake Winnipeg Valley, Bourgeau; Cart- 
wright, W. Scott (acc. to Wolf). A specimen from Port Ludlow, 
Washington (F. Binns) strongly approaches var. villosa but is hardly 
typical. 
EXPLANATION OF PLATE 106. 
Fig. 1. Typical leaf of Potentilla palustris, after Svensk Botanik, t. 310. 
Fig. 2. Leaf of extreme form of P. palustris with narrow leaflets (Comarum 
angustifolium Raf.) from lone, Washington (Kreager, no. 427). Fig. 3. Leaf 
of var. parvifolia from Dutch Harbor, Unalaska (Van Dyke, no. 93). Fig. 4. 
Leaf of var. villosa from Princeton, Maine (Fernald, no. 1920.) 
FLORA OF THE SANDY RIVER VALLEY IN MAINE. 
CLARENCE H. KNowrrow. 
THE Sandy River is a tributary of the Kennebec, in western Maine. 
It rises in the central part of Franklin County, with two main branches. 
One of these originates in a string of small ponds lying in Sandy River 
Plantation, and receives tributaries from Letter E and No. 6. The 
other branch rises in Redington, receiving many brooks from Mt. 
Saddleback in Madrid. The river is about fifty miles long, flowing 
southeast from its sources through Phillips, Avon, Strong and Farm- 
ington; then turning to the northeast it flows through New Sharon 
between Stark and Mercer, then through Stark into the Kennebec, 
