Wolffia punctata Griseb.

PLANTAE EXSICCATAE GRAYANAE
Noted, 1970
Michigan Flora Project
University of Michigan
NEW YORK BOTANICAL GARDEN
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639. Wolffia punctata Griseb.
FI. Br. W. Ind. 512 (1864); Thompson in Ann. Rep.
Mo. Bot. Gard. ix. 20 (1897), advanced reprint; Small,
FI. Se. U. S. 229 (1903) rRobinson & Fernald in Gray,
Man. ed. 7, 260 (1908); Britton & Brown, 111. FI. ed. 2, i,
449, fig. 1128 (1913); Fernald in Rhodora, xxxviii. 400
(1936).
Syn. W. brasiliensis Wedd. sensu Macoun, Cat. Canad.
PI. iv. 76 (1888) and v. 368 (1890); Britton & Brown,
111. FI. i. 367, fig. 891 (1896); not Wedd.
A little W. columbiana Karst, mixed with this.
Stagnant pools of Huron River, 2 miles east of Ann
Arbor, Washtenaw County, Michigan.
Coll. F. J. Hermann.	August 24, 1935.
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