: 
; 
5. 
72 MISSOURI BOTANICAL GARDEN. 
bears hyaline conidia abundantly. In about a week, black, 
long-beaked pycnidia appear on certain portions of the 
mycelium, which assumes a brown color, the development 
being similar to that described for C. pilifera. The fila- 
ments of the hyaline portion of the mycelium measure 
from 2u to 8 in diameter, and the older brown-colored 
filaments, in wood, from 3p to 6y, 
CONIDIA. 
The conidia are borne like those of C. pluriannulata, 
and are similar in shape (pl. 6, f. 2,3). They are unicel- 
lular, hyaline, elliptical to cylindrical, and measure 4 to 
8» in length, and 1.5y to 2u in width averaging 64 by 1.8y. 
PERITHECIA, 
The perithecia are spherical, of a black color, with 
black, long-beaked ostiola, terminating in long, wavy 
hyaline filaments. The body of the perithecium is usually 
nearly covered with dark brown hyphae or filaments. It 
averages 200m in diameter, and the neck 1.5 mm. in length 
and 254 in width. The terminal filaments are long and 
slender and measure 804 by 1p, average (pl. 3, f. 1). 
The ascospores are elliptical to reniform in shape and 
average 4.54 by 1.5uin size. It will be noted that al- 
though the perithecia of this species are larger than 
those of C. pilifera the conidia are somewhat smaller. 
Both ascospores and conidia usually germinate terminally, 
some few exceptions having been noted. 
The name C. capillifera is given to this species on 
account of the long minute bristles which project from the 
ostiolum. 
Ceratostomella pluriannulata n. sp. 
A block of blued sapwood from Quercus rubra was col- 
lected in 1905 by Perley Spaulding and turned over to the 
