<table>
  <tr>
    <td>HERBARIUM</td>
  </tr>
  <tr>
    <td>OF</td>
  </tr>
  <tr>
    <td>YALE UNIVERSITY</td>
  </tr>
</table>

Yale University Herbarium

YU.027236

Plants of Illinois
Adams County

Wolffia columbiana Karst.

Shallow pond

Near Quincy

Collected by
VIRGINIUS H. CHASE

Oct. 21, 1950