204 
Journal of Mycology 
[Vol. 12 
SOME WOOD STAINING FUNGI FROM VARIOUS LO¬ 
CALITIES IN THE UNITED STATES . 1 
GEO. G. HEDGCOCK. 
(Condensed from the original notes and from descriptions 
of the cultural characters in the report of the Missouri Botanical 
Garden* *) 
The following species of fungi are described from artificial 
cultures grown under similar conditions, on similar agar media, 
and in most cases compared with measurements made from nat¬ 
ural growths on wood or other substances. 
Ceratostomella in all the species studied has at first a hya¬ 
line conidial stage of short duration which soon changes in color 
and developes dark colored, beaked perithecia, with hyaline asco- 
spores borne in fugacious asci. 
Graphium in artificial cultures has two quite distinct conidial 
stages; the first form of conidia is borne on simple, hyaline, erect 
hyphae, and disappears later, as the stalks or stromatal out¬ 
growths bearing the heads with the second form are developed. 
The conidia of the first form, on account of their temporary 
nature, are called secondary conidia, and those borne in the 
mucilaginous heads primary conidia, because they are consid¬ 
ered the most important conidial stage. 
i. Ceratostomella pilifera (Fr.) Wint., Kryptogamenfl. 
2:252, Sphaeria pilifera Fr. Syst. Myc. 2:472, Sphaeria ros- 
strata Schum. Enum FI. Saell. p 128, Cerotostoma piliferum 
Fuckl. Symb. p. 128. Emended, Fledgcock, Mo. Bot. Gard. 
Rept. 17:64-67, pi. 4, fig. 5-7. Colonies white in condial stage, 
changing to gray or brown, with the formation of perithecia; 
filaments, 3/a to 4/a, hyaline to brown or black; conidia, 8/a to I2/a 
by 2jx to 4 /a, hyaline elliptical to cylindrical, borne terminally 
in whorls of short, branching chains from upright, hyaline hy¬ 
phae ; perithecia, usually superficial, carbonaceous, globose to 
pyriform, smooth or sparsely hirsute below, 50 /a to 200/A in 
diameter, with a long, slender beak, 600 /a to 1,050/A by 20 4 , ter¬ 
minated by a ring of hyaline bristles, 20/a by 2/a average; asci, 
fugacious, hyaline, pyriform to ovate, io/a to 15/* by 8/x to io/a; 
ascospores, 8, biseriate, hyaline, elliptical, often curved slightly, 
5.5/A to 2.5/A average, exuded in a mucous mass. 
On the wood of Pinus ponderosa Laws, staining it a blue- 
black color. Collector, H. von Schrenk, Sheridan, Wyoming, 
January, 1903. 
0) Published by permission of the Secretary of Agriculture. 
* Hedgcock, G. G. Studies upon some chromogenic fungi which 
discolor wood. Mo. Bot. Gar. Rep. 17: 59-114. PI. 4-12; 190G, issued 
as a separate, Sep. 27, 1906. 
