1922] Fernald,—Notes on Sparganium 33 
Pennsylvania to Long Island, New York, eastward to Nantucket, 
Cape Cod and Middlesex Co. and up the Connecticut Valley to 
Franklin Co., Massacuusetts; Chittenden Co., VERMONT; Quebec 
Co., QUEBEC; also Illinois and Missouri. 
3. S. AMERICANUM Nutt. Including var. androcladum Fernald & 
Eames, not S. simplex, var. androcladum Engelm.. S. androcladum 
Morong, as to plant in great part.—Muddy or peaty shores, swamps 
or shallow water, common southward, extending north to Muskoka 
District, ONTARIO, northern VERMONT and New HawrsnirnE, Frank- 
lin, Penobscot and southern Aroostook Counties, Marne, Kent Co., 
New Brunswick, Prince Epwarp Istanp, Cape Breton Island, 
Nova Scoria, and Avalon Peninsula, NEWFOUNDLAND. 
4. S. CHLOROCARPUM Rydberg. A species with two freely inter- 
grading varieties. 
Pistillate heads (1—) 2-4, remote or subremote, in maturity 1.5 
-2.7 cm. in diameter; the lowest borne 1-6.5 dm. above 
the base of the plant: staminate half of inflorescence 2-10 
uc uu d $9 DI. ................. o ets S. chlorocarpum 
i (typical). 
Pistillate heads 1-3, at least the upper usually approximate, 
in maturity 1.2-2.2 cm. in diameter; the lowest borne 0.1- 
1.8 dm. above the base of the plant: staminate half of in- 
florescence 1-4(-5) em. long, of 2-5 heads.............. Var. acaule 
S. cHLOROCARPUM (typical). S. diversifolium Fernald & Eames, 
not Graebn.—Muddy and peaty shores or swamps or in shallow 
water, NEWFOUNDLAND, MAGDALEN IsLanps and Gaspé Co., QUE- 
BEC to Algonquin Park, ONTARIO, south to Nova Scoria, southern 
Marne, Bristol Co., MASSACHUSETTS, CONNECTICUT, northern New 
Jersey, central and western New York, Indiana and Iowa. 
Var. ACAULE (Beeby) Fernald. S. diversifolium, var. acaule (Beeby) 
Fernald & Eames. S. acaule (Beeby) Rydb.— Similar habitats and 
range, commoner northward, but extending to Nassau Co., Long 
Island, New York, in the uplands to Virginia and West Virginia, 
and North Dakota. 
5. S. ANGUSTIFOLIUM Michx. S.affineSchnitzl. S.simplex Fernald 
& Eames, as to plant of eastern America, not Hudson.— Deep or 
shallow water or muddy or peaty shores, NEWFOUNDLAND and Straits 
of Belle Isle to Lake Mistassini, QUEBEC, west to Alaska, south to 
Nova Scorta, eastern and central counties and Androscoggin Co., 
Marner, Carroll and Grafton Cos., New Hampsutre, Essex, Middle- 
sex and Norfolk Cos., Massacuusetts, Litchfield Co., CONNECTICUT, 
Catskill Mts. and Oneida Lake, New York, uplands of northern 
New Jersey and Pennsylvania, Michigan, Colorado and California, 
ascending in our mountains to 1104 m. (3600 feet); also Eurasia. 
6. S. FLUcTUANS (Morong) Robinson.—Cold waters of lakes and 
ponds, chiefly in silicious regions, NEWFOUNDLAND to Lake Mis- 
tassini, QUEBEC and northern Minnesota, south to Nova Scorta, 
