damp soil. I have represented in the Plate a portion of the
terrestrial variety after it had been kept for a few days in
a vessel of water. I did not succeed in making it fructify.
Agardh’s notion that it is but a variety of V. Dillwynnii
must have arisen from the examination of the form here
figured, which in habit so exactly resembles that species.—
M. J . B.
a. Portion of terrestrial form of Vaucheria ccespitosa;
b. part of the same magnified; c. tip of one of the branches,
with its vesicles and hornlike process; d. an old vesicle ;
e. a portion of the plant after being kept a few days in
water.
