Wolffia columbiana H.Karst.

No botanical uses.

: Osatevi-
V
%1
mm YORK BOTANICAL GARDEN
03700876
ÌEW YOfe
BOTANICAL
öardeH
y<
07259
MUSEUM OF NATURAL HISTORY
IR Irmi KV fil pj
UNIVERSITY OF OREGON
EUGENE
EST E R N HALF (TF TTTTT
PLANTS OF OREGON
WOLFF IA COLUMBIANA Karsten
Forming a green scum on the surface
of the water*
Associate species: Lemna minor%
Azolla filiculoides, Nuphar poly-
sepalum and Brasenia schreberi.
LINN COUNTY: Old Corvallis-Albany
Road; R. U W., T. 11 S., Sec. 28.
XI/1U/1962
Coll. j: La Rea J. Dennis (2^17)
Exchange from the Herbarium of
Oregon State University
03700876