CHROMOGENIC FUNGI WHICH DISCOLOR woop. 175 
C’. minor is assigned, with the following cultural charac- 
ters: — : 
MYCELIUM. 
Cultures of eitner conidia or ascospores on pine agar 
media germinated in a few hours, and in two days the col- 
ovies began to form conidia. The mycelium is white and 
sparse. The hyaline filaments of the conidial stage measure 
in width 1.5y to 2.6, averaging 2.34. The brown or black 
filaments in agar cultures and in wood measure in diameter 
from 2u to 4p, averaging 3.54. These are often rugose, 
the roughenings being coarser than those in C’. exigua. 
In some portions of the mycelium on wood there are 
filaments that contain cells that are unequal in diameter, 
being enlarged at one end. Like C. pilifera this species 
follows chiefly the medullary rays of pine wood. 
CONIDIA. 
The formation of the conidia and the form of fruiting 
do not differ essentially from those of C. pilifera and 
C. exigua. The unicellular, hyaline conidia measure from 
4 to 5.54 in length, and from 1.84 to 2m in width, aver- 
aging 4.54 by 2u. They areoval to elliptical in shape, and 
fall off at the slightest touch, collecting in rounded masses 
on the hyphae when in moist air. 
PERITHECIA. 
The perithecia mature in about three weeks in artificial 
cultures. They are spherical, black rugose bodies, vary- 
ing from 40 to 70» in diameter, averaging 524, witha 
beaked ostiolum 120y to 160uin length, averaging 135p, 
and from 6u to 124 in diameter (pl. 5, f.6). The beak 
ends in a whorl of short, thick bristles (pl. 8, f. 4). The 
asci are round to oval, hyaline, with eight spores in each, 
usually arranged in fours (pl. 5, f. 7). The spores meas- 
ure 3.1uto 4.2uin length and .9 to 1.94 in width, averag- 
