246 ERYTHEA. 
Species that were plainly occasional were not recorded. 
Eriogonum vimineum, Dougl., and H emizonia Parryi,Greene, 
were found on one of the islands. In very dry season such 
plants are quite abundant, and there is, as a consequence, a 
marked change in the character of the flora. The seeds of 
all occasional species are brought down by the river currents 
from the higher lands, and only at uncertain intervals find 
congenial conditions. Rushes, sedges, and grasses form a 
very extensive part of the vegetation, some one species alone, 
as noticed above, giving character to the landscape. 
The following parasitic phanerogams were observed: 
Cuscuta subinclusa, Dur. & Hilg.,on Medicago sativa, Moris.; 
Phoradendron villosum, Nutt., on Afsculus Californica, 
Nutt. and Aphyllon comosum, Gray, on roots of Quercus 
lobata, Née, banks of Haas Slough, May, 1884. 
CORRECTIONS IN NOMENCLATURE.—IV. 
By Epwarp L. GREENE. 
Very humble apology is here proffered to our friend the 
Editor of Garden and Forest, for our having read as if it 
had been editorial, a recent article on nomenclature of the 
Silver-Bell Trees. Not until some time after our note on 
page 236 of the present volume was in print, was it pointed 
out to us that the article upon Mohria had Dr.N.L, Britton’s 
signature. 
And now, with Dr. Britton’s permission, we shall state 
formally that, since our CARLOMOHRIA has five days priority 
over his Mohrodendron, the shrubs are to be called, respect- 
ively, Carlomohria Carolina (—Halesia Carolina, L.), ©. 
diptera (—Halesia diptera, L.), and C. parviflora (=Hal- 
esia parviflora, Michx.). 
Maintaining the ground we took, that Mohria at best is 
but a homonym of Morea, we offer the following instead of 
Swartz’s Mohria: 
