No. 378.] REVIEWS OF RECENT LITERATURE. 459 
case of the Gammelost the ripening and flavoring are accomplished by 
adding to the sour, coagulated skimmed milk two fungi, v7z., a Peni- 
cillium and a Mucor. The blue mold used is not P. glaucum, which 
always spoils the cheese when it gets into it, but a hitherto unrecog- 
nized species, P. aromaticum. In the green cheese, which is said to 
taste like sour horn, dead yeast and lactic acid organisms prevail ; 
in the ripe cheese, which has an entirely different structure and 
appearance, Mucor and Penicillium are very abundant, Mucor being 
most abundant and exerting the predominant influence if the cheeses 
are ripened at high temperatures, and Penicillium if they are ripened 
at moderate temperatures. 
We are not told what fungi should be used to ripen and flavor 
Gorgonzola, Roquefort, Camembert, and Norwegian cheese (goat 
cheese), but are given to understand that these problems have been 
solved, and also that he will soon be in condition to give exact direc- 
tions for making Stilton, Gouda, Eidam, Cheddar, Emmetthaler, and 
other cheeses. The paper from which these statements have been 
taken is illustrated by six lithographic plates showing Gammelost 
and the fungi required to ripen and flavor it. pew F. SMITH. 
A New Check-List of North American Plants.’— At the Buffalo 
meeting of the American Association the botanists interested in the 
Rochester nomenclature decided to prepare a reform check-list of 
the higher plants of North America. This list, except in its greater 
territorial scope, was to be much like the one already issued for 
northeastern North America. The work, we believe, was to be 
assigned so far as possible to specialists, each of whom should treat 
only such groups as were most familiar to him. It is needless to 
say that many botanists have grave doubts as to the value of such a 
list. They see clearly that the Rochester nomenclature, instead of 
being an ideal system, has serious defects which will, as they believe, 
preclude its ultimate success. However, if such a list was to be 
prepared at all, there is reason to commend the codperative plan 
adopted. The consistent application of any new principle of nomen- 
clature to the flora of such a vast area is a matter of great and 
obvious difficulty, and it was the hope of the conservatives as well 
as the reformers that the work, if undertaken, might be carried out 
with caution and scholarly methods. For these,reasons it is a matter 
for general regret that the proposed critical list has been anticipated 
1 Heller, A. A. Catalogue of North American Plants North of Mexico, Exclu- 
sive of the Lower Cryptogams. Minneapolis, March 10, 1898. 
