MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 173 
8. CHAETOMIUM CONVOLUTUM Chivers, Proc. Am. Acad. 48: 85. 
1912 
PLATE 14, FIGS. 9-12 
Blue-gray. Perithecia of medium size, globose or subglobose, 
244 X 232и (236-254 Х 224-240), frequently provided with 
cirrhi, destitute of differentiated rhizoids. Lateral hairs com- 
10, are open and of large diameter below, but toward the 
extremity constantly and evenly decrease in size and become 
more and more closely appressed. Авсі club-shaped, 8-spored, 
56.4 X тои, pars sporif. 27.4 и. Spores when young colorless 
with granular contents, when mature, pale dull olive, ovate or 
lemon-shaped, bluntly pointed at either end, slightly apiculate, 
8-8.4 X 6.4 и, when seen edgewise, 4.8-5.6 и broad. 
Cultivated on mouse dung from Germany (Chivers No. 18). 
This is a rare form, having appeared but once. The species 
may be identified by the distinct blue color of the plant when 
seen with the naked eye or hand lens, and by the long, spreading 
and drooping, terminal hairs, the long series of coils tapering 
abruptly to a blunt point. 
9. CHAETOMIUM SUBSPIRALE Chivers, Proc. Am. Acad. 48: 84. 
1912 
PLATE 12, FIGS. 12-17 
Perithecia rather large, elon- 
twisting near the end into a very small and tightly coiled ae 
Terminal hairs slender, graceful, obscurely septate, smooth, 
