Fi 
CHROMOGENIC FUNGI WHICH DISCOLOR WOOD. 97 
is imperfectly described. The fungus is now assigned to 
this species with the following emended description taken 
from cultural characters: — 
MYCELIUM. 
The growth of colonies from both primary and secon- 
dary conidia is much like that of G. aureum. The colon- 
ies remain hyaline for some time; even the stalked heads 
show an absence of color for several days after their ap- 
pearance. Finally the mycelium assumes a gray color, often 
with a green tinge, and at the same time the stromata as- 
sume a darker color. The filaments measure 2y to 3p in 
diameter. 
SECONDARY CONIDIA. 
The secondary conidia are of the type of branching 
chains, resembling Ceratostomella (pl. 9, f.2, 3). They 
are obovate to cylindrical, hyaline, and measure 4p to 6 
by lz to 2u. The conidial clusters are open at first, but in 
moist air fall together after a few days, forming rounded 
masses on the ends of the hyphae. 
PRIMARY CONIDIA. 
The stalks bearing the heads are hyaline at first, chang- 
ing to a gray, finally to brown or black at the base." They 
are often much swollen at the base, and measure from 
.3mm., to 2mm. in length by 30¢ to 300 in diameter. The 
heads are large and showy, often much flattened, or even 
recurved at the edges, and measure 20, to 600, in width 
(pl. 9, f.1). Their color is white at first, changing later 
to a creamy yellow color. The primary conidia are borne 
continuously on branched hyphae from the ends of the 
filaments in the head, falling off rapidly as they are 
formed, into the mucous mass which surrounds the head. 
They are hyaline, and measure 3z to 5y by 1p to 1.5, (pl. 
Ot, 4). 
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