1914] BRIEFER ARTICLES 525 
took on the “button” form of the young fruiting agaric. On Decem- 
ber 26, the accompanying photograph (fig. 1) was taken, and four 
days later the pilei had opened to the mature condition shown in the 
second photograph (fig. 2). As will be seen, the fruit bodies devel- 
oped in a quite normal manner, and, except for their size and the 
somewhat “recurved” condition of the pilei, appeared to be quite 
normal. Fruit bodies 
examined with the micro- 
scope were seen to be 
sporulating profusely, 
and the spores were 
found to be quite normal 
as to color, shape, and 
size for this form. Upon 
being transferred to the 
beef-malt-agar medium, 
the spores germinated 
quite as readily as those 
from the original fruit 
bodies. Cultures are at 
present being maintained 
with the hope of obtain- 
ing a second fruiting 
tion of fruiting bodies of 
the second generation 
have been observed.' 
The fact that the formation of normal fruit bodies on a synthetic 
medium is somewhat rare led me to consider what possible conditions 
may have effected this result. Cultures were found to fruit in either 
light or darkness, and so the presence or absence of light as a factor 
seemed to be eliminated, although it must be said that the first stages 
were always initiated in the dark. All cultures from the same fruit 
body made on one particular lot of medium, which had been slightly 
Fie. 2 
« Since the preparation of this article, numerous fruiting bodies of the second spore 
generation have been obtained, showing such striking variations in form from the origi- 
nal parent that it has been thought best to discuss this phase in a future paper. 
