82 
OHIO BIOLOGICAL SURVEY 
wide at the base, septate, scabrous throughout or smooth apically, pale- 
brown; lateral and basal hairs simple, curved towards the tip and tapering, 
about 215x3-5 mic., septate, scabrous at the base, yellow-brown, paler or 
colorless towards the tip, tips broken off usually when old; paraphyses 
simple, stout, not numerous, much longer than the asci and mixed with 
them, septate, not so evanescent as the asci; asci clavate, with a stipe .3 
to .5 length of asci, small, 35-48x10-14 mic., 8-spored, very evanescent; 
spores irregularly arranged, hyaline or pale olive-green to pale olive-brown, 
broadly ellipsoid, almost globose, sometimes slightly apiculate, 6-7.5x5-6 
mic. 
Habitat: Dung of dogs, sheep, chickens, and mice, old shoes, pota¬ 
toes, and decaying portions of animals. 
Distribution: New York to Ohio and Louisiana; also in Europe. 
Illustrations: PI. I, f. 21-22 and pi. II, f. 1-8; Nova Acta Acad. 
Leop.-Carol. 42: pi. 20, f. 14-26. 
Type Locality: Berlin, Germany. 
Distinctive Characters: Small pale olive-brown spores and 4-10 
regular spirals of the apical hairs. 
Notes: Asci were slightly immature when measured, since mature ones disappear. 
Plants cultivated in the laboratory, Feb. 2, 1917, on mice dung, collected by W. G. Stover, in 
laboratory of Ohio State University, Columbus, Jan., 1915; also June 14, 1917, on paper in dish with cow 
dung collected by Bruce Fink, at Peebles, Oct. 28,1913; June 21, 1917, on chicken dung collected by 
Chas. R. Stevenson, at Stout, Jan. 1, 1917; and June 26, 1917, on rabbit dung collected by the author 
near Georgetown, Dec. 3, 1916. 
5. Chaetomium elatum Kunzef Schmidt & Kunze, Deuts. Schwamme 
8: 3. 1818. 
Chaetomium pannosum Wallr. FI. Crypt. Germ. 2: 267. 1833. 
Chaetomium glabrescens Ellis & Ev. Proc. Acad. Phila. 1893: 130. 1893. 
Perithecia densely gregarious, or scattered and simple, subglobose or 
ovoid, or sometimes top-shaped, 220-425x190-365 mic., dark-brown to black, 
opaque, brittle and easily crushed, thickly clothed with hairs; apical hairs 
often forming a black spherical mass 900 mic. in diameter, consisting of 
rough, septate, deeply incrusted bristles, more or less irregularly or 
dichotomously branched at the end usually 2-5 times, being widest generally 
at the point of branching, 5-9 mic. wide there and 4-7 mic. at the base, 
with the terminal branches which are often 350 mic. long before they are 
crushed or broken off abruptly in drying, black or dark-brown and incrusted 
at the base, tapering and gradually becoming smooth and hyaline at the 
tip; lateral hairs few, simple, curved, short, 5 mic. thick, septate, smooth or 
slightly incrusted, hyaline to light-brown; basal rhizoids flexuous, 3-4 mic. 
thick, sparingly septate, smooth, pale red-brown to dark-brown; paraphyses 
and asci not observed; spores hyaline to olivaceous-brown, ellipsoid, 
apiculate at both ends, 9-14x7.5-9 mic. 
Habitat: On packing straw, maple log, Indian corn, decaying cotton¬ 
wood stick, barrel stave, manure, straw hat, dead petioles of Washingtonia, 
dead grass, old broom, etc. 
