190 FUNGI. 
and, if observed separately, is found to be provided with a 
brownish, finely verruculose, dotted wall. 
The same mycelium which forms the pedicel for the conidia 
when it is near the end of its development, forms by normal 
vegetation a second kind of fructification. It begins as delicate 
thin little branches, which are not to be distinguished by the 
naked eye, and which mostly in four or six turns, after a quickly 
terminated growth, wind their ends likeacorkscrew. (Fig. 102.) 
The sinuations decrease in width more and more, till they at last 
reach close to one another, and the whole end changes from the 
form of a corkscrew into that of a hollow screw. In and on 
that screw-like body, a change of a complicated kind takes place, 
which is a productive process. In consequence of this, from the 
screw body a globose receptacle is formed, consisting of a thin 
wall of delicate cells, and a closely entwined row of cells sur- 
rounded by this dense mass (d). By the enlargement of all these 
parts the round body grows so much, that by the time it is ripe 
it is visible to the naked eye. The outer surface of the wall 
assumes a compactness and a bright yellow colour; the greater 
part of the cells of the inner mass become asci for the formation 
of sporidia, while they free themselves from the reciprocal union, 
take a broad oval form, and each one produces within its inner 
space eight sporidia (¢). These soon entirely fill the ascus. 
When they are quite ripe, the wall of the conceptacle becomes 
brittle, and from irregular fissures, arising easily from contact, 
the colourless round sporidia are liberated. 
The pedicels of both kinds of fruit are formed from the same 
mycelium in the order just described. If we examine attentively, 
we can often see both springing up close to one another from the 
same filament of a mycelium. This is not very easy in the close 
interlacing of the stalks of a mass of fungi in consequence of 
their delicacy and fragility. Before their connection was known, 
the conceptacles and the conidia pedicels were considered as 
organs of two very different species of fungi. The conceptacles 
were called Hurotium herbariorum, and the conidia bearers were 
called Aspergillus glaucus. 
Allied to Eurotium is the group of Hrysiphei, in which well- 
