142 Rhodora |JuLy 
Dakota, other southwestern points in its known range, and will cut 
off several counties in northeastern South Dakota. It is something 
of a happy coincidence, therefore, that on May 23, 1923, Prof. W. H. 
Over, should have collected an undoubted specimen of this species 
near a spring, east of Bitter Lake, Day County, South Dakota (Over 
15374, in herbaria C. R. Ball and University of South Dakota). Day 
County is the second county from the northeast corner of South 
Dakota and just south of Marshall County where S. candida was 
found. Both contain many glacial lakes. 
SALIX CANDIDA NEW TO SOUTH DAKOTA. 
Salix candida Fluegge is found in cold bogs from Newfoundland, 
New England and New Jersey westward to the Rocky Mountains of 
Colorado, Wyoming, and Montana and Alberta, and the mountains 
of British Columbia. The southern boundary of its range is found in 
the glacial bogs of the northern portions of Ohio, Indiana, Illinois and 
north central Iowa. From there the western line of its prairie distri- 
bution bent sharply far to the northward, the next stations previously 
known to the northward being at Butte in Benson Co. and Under- 
wood in McLean Co., both in central North Dakota, in the glaciated 
area east of the Missouri River. | 
In 1923, however, it was collected in “marshy places at the north- 
east corner of Buffalo Lake, Marshall Co.” So. Dak., by Prof. W. H. 
Over, No. 15438, on Aug. 3. The plant apparently was growing 
luxuriantly and has unusually broad leaves. The material is deposited 
in herb. Univ. So. Dak., Nat. Herb. and that of the writer. Marshall 
Co. is in the northeastern portion of the State, lying against the North 
Dakota line just west of Roberts Co., discussed previously in this 
paper. This collection extends the known range considerably to the 
southwest. The species may be looked for about the margins of the 
numerous other swampy lakes in northeastern South Dakota and 
adjacent North Dakota. 
SALIX CANDIDA DENUDATA ANDERSSON. 
Andersson! erected the variety denudata of Salix candida in 1868 
but it has not been recognized in manuals of botany until recently. 
Andersson cited no collections or localities. Robinson and Fernald? 
give the range as “Gaspé Co., Que., to Wisc. and Ct.” 
1 Andersson, N. J., in De Candolle Prodromus Syst. 162: 278, 1868. 
2 Robinson and Fernald, Gray New Man. Bot. 327, 1908. 
