MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 187 
16. CHAETOMIUM SPINOSUM Chivers, Proc. Am. Acad. 48: 86. 
1912 
PLATE 10, FIGS. I-7 
angles with it, or backward from it. Later the primary branches 
есоте branched until an intricate system is formed. Branches 
light yellow to colorless, covered with delicate spines. Asci 
very narrowly club-shaped, 41 X 7.5 и, pars sporif. 22 и. Spores 
when young filled with granules and globules, greenish, refractive, 
when mature pale olive, egg-shaped, 5.9 X 3-9 и (5.6-6.4 X 3.2-4). 
Growing in cultures of dung from Buenos Ayres, В. Thaxter 
(Chivers No. 7), 
This is apparently a rare species having appeared but once. 
The egg-shaped spores and the branched, terminal hairs are 
peculiar to the species. From the dark, stiff, spine-like shafts 
of the terminal hairs arise slender, delicate, irregularly swollen 
and constricted outgrowths, from which secondary branches arise 
Which elongate and precede the cirrhus of spores as it forms. 
In this way a support is formed for the spore mass. 
17. CHAETOMIUM AMPULLARE Chivers, Proc. Am. Acad. 48: 86. 
I9I2 
PLATE 10, FIGS. 8-12 
Ochre. Perithecia rather large, extremely elongated, flask- 
shaped, 489 X 147 и (456-532 X 137-167), producing at — 
a copious, black mass of spores and olive-yellow rhizoids. saa 
airs comparatively few, long, slender, graceful, straight or nearly 
50, insensibly tapering, at base dark olive-brown, smooth or та 
minutely roughened and about 7.5 и in thickness, above brig : 
Yellow, terminating in rather long, colorless, refractive, thin an 
More or less collapsed tips. Terminal hairs smooth, very long, 
