THE FIMETARIALES OF OHIO 
81 
the ascus, ranging from hyaline when young to yellow-brown at maturity, 
globose-ellipsoid, slightly apiculate at both ends, 9-13x8-10 mic. 
Habitat: On various dead plants, moist wood, rye-straw, paper, 
pasteboard, old broom, etc. 
Distribution: Maine to Ohio, Kansas, and Texas. 
Illustrations: PI. I, f. 9-11; Grevillea 6: pi. 100, f. 38. 
Type Locality: Newfield, New Jersey. 
Distinctive Characters: Yellow-brown spores and flexuous, olivace¬ 
ous hairs of uniform diameter, changing to light-brown in drying, mi¬ 
nutely scabrous to almost smooth. 
Note: Plants collected by the author on an old broom, at Oxford, Oct. 3, 1913. 
3. Chaetomium spirochaete Palliser, N. Amer. Flora 3: 61. 1910. 
Perithecia more or less gregarious, ellipsoid, 250-300x190-230 mic., 
dark-brown, often appearing black, opaque, thin, brittle, thickly clothed 
with hairs; apical hairs simple, numerous, often forming a densely entangled, 
dark, spherical mass 800 mic. in diameter, straight for about 350 mic. 
from the base, then becoming extremely flexuous or irregularly spirally 
twisted several times, 3-5 mic. thick at the base, septate, more or less 
thickly incrusted, toward the end becoming paler and less incrusted, 
although scabrous throughout or becoming smooth at the tip, dark-brown; 
basal and lateral hairs simple, flexuous, 3 mic. thick, sparingly septate, 
smooth, pale-brown; paraphyses not observed; asci broadly clavate, 30-52 
xll-15 mic., 8-spored; spores forced into a globular mass at the tip of the 
asci by the growth of younger asci, hyaline to brown, broadly limoniformis, 
slightly apiculate at either end, 7-11x6-9 mic. 
Habitat: On moist decayed paper, wheat-straw, cotton root in a moist 
chamber, and quail dung. 
Distribution: New Jersey to Ohio and Iowa. 
Illustration: PI. I, f. 12-20. 
Type Locality: Ames, Iowa. 
Distinctive Characters: Simple, incrusted hairs, straight at the 
base and irregularly and spirally twisted at the end. 
Note: Plants collected by the author on paper in a tub at Oxford. Oct. 4, 1913, and on 
wheat-straw near Georgetown, Dec. 3, 1916; also grown in the laboratory. May 19, 1917, on quail 
dung collected by the author near Georgetown, Dec. 28, 1916; on potato hard agar, March, 1917, 
several cultures. 
4. Chaetomium bostrychodes Zopf, Sitz.-ber. Bot. Ver. Prov. Brand. 
19: 173. 1878. 
Perithecia gregarious or scattered, broadly ovoid or subglobose to 
fusoid, 160-350x145-220 mic., light gray in fresh condition, brown when 
dried, opaque, thin, membranous, covered with hairs having fine sandy 
granules intermixed at base; apical hairs simple, straight for 260-320 mic., 
then coiled 4-10 times in a more or less regular spiral 18-36 mic. in 
diameter, extending 305 to 540 mic. above the perithecium, 3-5 mic. 
