196 
Mycologia 
when old, later becoming repand and umbelicate, and more or 
less angular. The stem is obscured by the expanding disc. The 
largest disc became convex and measured at least lo cm.” 
In April of the same year, similar specimens were collected by 
Mr. L. O. Overholts in a mushroom cellar in Missouri. These 
specimens, which were referred to the writer, were accompanied 
by the following description : “ Cups 3-8 cm. broad, somewhat 
stipitate, margin involute, depressed in the center, hymenium 
smooth, ochraceous-buff (Ridgw.) or somewhat more brownish, 
exterior covered with white meal.” 
All of the American specimens referred to above agree well 
with specimens of Peziza domiciliana from the herbarium of 
Cooke, so far as we can judge from dried specimens. According 
to Cooke, the apothecia are sessile, although in our American 
specimens they are, at least when young, short-stipitate. Also we 
have not noted any of the violet tints referred to by Cooke, 
although in his original description he allows for a rather liberal 
range of color. The spore measurements of the American and 
European specimens are identical. The young plants are always 
pure-white and usually the flesh when broken turns golden-yellow. 
This fact was noted by Bresadola and was found to be true of 
specimens collected in New York. Whether this character is 
constant, we are unable to say, since no attention was given to 
this in some of the plants when fresh. From the studies which 
have been made, the writer feels safe in referring our American 
plants to Peziza domiciliana Cooke, and also in regarding this 
species as distinct from Peziza repanda Pers. 
Peziza repanda was described by Persoon, the original descrip- 
tion being accompanied by an excellent colored figure. Although 
the species was originally reported on the ground by Persoon, 
subsequent authors have usually reported them on rotten logs. 
Whether Persoon’s species actually grew on soil which was un- 
mixed with wood it is impossible to determine, although it is not 
difficult to believe that the species might grow on either. Aside 
from this incident, Persoon’s description and illustration fits the 
plants which are usually referred to this name. The following 
descriptions and illustrations will give a fair idea of our concep- 
tion of the two species. 
