` NEW PUBLICATIONS. 223 
thor’s classification. It is the last chapter and the methodic enume- 
ration which contain the greatest novelties in the ‘ Essai.’ 
M. de Seynes divides the Agaricini into two great sections, based 
on the colour of the spores, i.e. into the Chromospori and the Leuco- 
spori. The former of these he places first, and under it includes the 
following genera, in the order in which they are named :—Montagnites, 
Coprinus, Coprinarius, Pratellus, Derminus, Bolbitius, Cortinarius, Gom- 
phidius, Paxillus, Crepidotus, Hyporhodius, and Volvaria. The Leu- 
cospori include Amanita, Lepiota, Armillaria, Tricholoma, Hygro- 
phorus, Clitocybe, Pleurotus, Mycena, Omphalia, Panus, Lentinus, 
Marasmius, Collybia, Lactarius, Russula, Cantharellus, and Schyzophyl- 
lum. At the first glance he would appear to have reverted to the 
arrangement of the * Systema Mycologicum * of Fries, but this vanishes 
upon a better consideration. It is true that, seemingly devoid of 
confidence in what he has done, he calls them all Agaricus in his enu- 
meration, with his generic names in brackets, so as to give them appa- 
rently only a subgeneric value; but, whatever value he chooses to place 
upon them, he evidently desires that all the groups shall be accepted 
as of equal value; and if Panus and Lentinus are to be treated as 
genera, so therefore should Mycena and Omphalia. There is ample 
room for a revision of the genus Agaricus, even as understood by 
Fries in his latest works; but whether this effort will be accepted as 
a basis must be left awhile for the consideration of mycologists. Some 
will probably doubt whether the succession adopted is the best which 
could be suggested, others whether the genera (2) are all equally well 
characterized, whilst others again will continue to swear by the * Epi- 
crisis’ and ‘Summa Vegetabilium Scandinavie,’ and turn a deaf ear 
to all proposals to amend this ortion of the system matured by Fries. 
Each and all will doubtless hesitate ere they accept M. de Seynes’ 
classification of the Agaricini as a basis for future operations. Al- 
though it may be a novelty, it is a question whether it may not be 
more honoured in the breach than in the observance. 
Two hundred and nineteen species are included in the enumeration, 
but a belief is expressed that nearly double that number would be 
attained if the whole district were carefully and systematically exa- 
mined. Floras of this kind are exceedingly valuable in estimating the 
distribution of species, and whatever differences of opinion may be 
entertained of the value of his arrangement, there will be unanimity 
