horizontally. Seeds oblong, fixed to the interior angle of
the cells.
DeCandolle has united many of the American Ludwigix
with Isnardia: hence arises the necessity of framing a specific
character, to distinguish the present from the other
species of the genus.
Dr. Boott’s specimens, gathered near Boston in the
United States, and a plant sent to us from Nepal by Dr.
Wallich, offer no characters by which they can be distinguished
from the European Isnardia palustris.—W. J. H.
