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

Yale University Herbarium

YU.027229

PLANTAE EXSICCATAE GRAYANAE

173. Wolffia columbiana KARST.

Bot. Unters. i. 103 (1865); Hegelm. Lemnac. 122,
t. 1, figs. 1-13; Thompson, Rep. Mo. Bot. Gard. ix.
41, t. 4, fig. F; Britton & Brown, Ill. Fl. ed. 2, i. 449,
fig. 1127.

On wet mud in slough near Dutcher's Bridge,
Salisbury, Connecticut.

Coll. M. L. FERNALD.

September 6, 1909.

0 1 2 3 4 5 6 7 8 9 10
cm

10
cm

9
cm

8
cm

7
cm

6
cm

5
cm

4
cm

3
cm

2
cm

1
cm

0
cm

1
cm

2
cm

3
cm

4
cm

5
cm

6
cm

7
cm

8
cm

9
cm

10
cm

1
cm

2
cm

3
cm

4
cm

5
cm

6
cm

7
cm

8
cm

9
cm

10
cm

1
cm

2
cm

3
cm

4
cm

5
cm

6
cm

7
cm

8
cm

9
cm

10
cm

1
cm