CHROMOGENIC FUNGI WHICH DISCOLOR WOOD. 6Y 
perithecia. The filaments of the mycelium measure 5p to 
7m in diameter. 
CONIDIA. 
The conidia are borne in clusters similar to those of 
C. pilifera (pl. 4,f. 1,2). They are unicellular, obovate 
to elliptical or cylindrical, and measure 3p to 7p by lp to 
Qu, averaging 5u by 1.84. They are hyaline and are 
usually neither guttulate nor granular, but when old may 
have one or two guttules. 
PERITHECIA. 
Perithecia are formed on the mycelium (pl. 4, f. 4), as 
in C. pilifera. The shape is spherical. They are coal 
black in color, and measure 120u to 200u in diameter, with 
a smooth, beaked ostiolum, measuring .8mm. to 1.2mm. 
in length by 10% to 254 ia diameter, surmounted at ma- 
turity by a row of short, hyaline, spreading bristles, which 
support the. ejected ascospores ina globular mass. ‘The 
bristles measure about 10u to 15y by 2u (pl.3,f.6). The 
ascospores are hyaline, pointed, elliptical, often slighily 
curved, and measure 2.54 to 4p by 1p to 1.5p, averaging 
3.54 by lw (pl. 4, f. 3). 
This species resembles, in its gross measurements, the 
description of C. echinellaE. & E. It differs, however, 
_ in that the perithecia are borne superficially, and are not 
glandular-pubescent or thickened at the tips. The mature 
perithecia are not gregarious, although they bear numerous 
small bodies at their base, under certain conditions. 
Ceratostomella echinella E. & E. 
The last species of Ceratostomella identified and studied 
before publication was collected by Dr. von Schrenk at Kir- 
byville, Texas, on the wood of the red beech, Fagus atropu- 
nicea (Marsh.) Sudworth. This was growing on freshly 
cut heart and sap-wood, staining the wood either a bluish or 
