J. ClaytonN. hyalina
from Coffey and Clayton, 1988Specimen of L. ruthiana
from Coffey and Clayton, 1988Starwort
R. WellsNymphaea species
from Coffey and Clayton, 1988P. cheesemanii
J. ClaytonM. propinquum and M. triphyllum
from Coffey and Clayton, 1988Lake view of M. propinquum and M. triphyllum
R. WellsStem apices of E. canadensis
from Coffey and Clayton, 1988Leaves of Vallisneria gigantea
NIWAP. crispus
R. WellsR. trichopllyus
J. ClaytonR. trichopllyus
