66 TWENTY-NINTH REPORT ON THE STATE MUSEUM. 
AGaRicus Navcinus /. 
In the new edition of Epicrisis this species is described as having 
globose spores ; it therefore becomes necessary to regard as a distinct 
species the plant reported under this name in the 23d Report, p. 72. 
I propose for it the name Agaricus (Lepiota) naucinoides, and add 
to the description already given the following: Spores subelliptical, 
.0003’—.00085' long, .0002’-.00025' broad, generally with a single large 
nucleus. 
The difference in the spores, the smoother pileus and absence of 
an umbo will separate this from A. naucinus. 
There is also another closely related species, A. Schulzert Kalchb., 
which is said to have ovate spores, a small annulus, an umbonate 
pileus and a nauseous taste, characters by which it may be readily 
distinguished from our plant. A. /@vis Krombh., and A. cretaceus 
Fr., are also liable to be confused with this plant if the spores be 
neglected, the former being distinguished by its rosy or flesh-colored 
spores, the latter by its brown spores. Thus it appears that there 
are five species that are not easily separated except by their spore 
characters ; a strong indication of the importance of pablishing these 
characters with the descriptions of species. 
Agaricus ponpERosus Pk. Report 26, p. 50. 
This name being preoccupied is changed to Agaricus magnive- 
laris Pk. 
Agaricus coprinoiwEs Pk. Report 26, p. 59. 
This name also has been applied to a European species and I 
would therefore name the American plant Agaricus plicatellus Pk. 
Agaricus Lizacinus Pk. Report 24, p. 638. 
This, too, is applied in Europe to a different species. I would 
therefore substitute for it the more appropriate one, Agaricus lilaci- 
Jolaus Pk. 
Puicatura Aunt Pk. 
In the first edition of Epicrisis the genus Z7vogza is limited to 
coriaceous Agaricini having the lamelle or folds longitudinally 
channelled on the edge. In the Handbook of British Fungi the 
generic character of Z7ogia is so modified as to include species with 
crisped lamelle, and Cantharellus crispus is referred to this genus. 
Also, in the second edition of Epicrisis the phrase ‘in spec. Europza 
modo crispz”’ is parenthetically inserted in the generic description 
of Trogia and C. crispus becomes Trogia crispa. It this classifica- 
tion is to be adopted and followed then Plicatura Alni must be 
changed to Zrogia Alni. The reasons for its adoption are twofold. 
First it is the arrangement of the venerable Fries, the life-long student 
of fungi, who probably has no equal in the knowledge of the Agaricini 
