188 MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 
graceful, insensibly tapering, straight for a long distance above 
the base, distinctly and regularly septate, at base about 7.5 шіп 
thickness, from base to apex successively golden-brown, golden- 
yellow, pale yellow, hyaline, terminating in colorless, elongated, 
more or less collapsed tips, producing in the upper portions 
branches which are frequently septate and only slightly colored 
at base, hyaline and delicate above, and which in turn produce 
branches of like nature. Asci club-shaped, 8-spored, 45 X 9.7 №, 
pars sporif. 23 и. Spores bright olive-yellow, umbonate at either 
end, lemon-shaped, 8.1-8.0 Х 6.4 и. 
On culture of sail cloth from Lowell, Massachusetts (Chivers 
No. 4). On dung from North Carolina (R. Thaxter). 
This species is clearly characterized by the very much elon- 
gated bottle-shaped perithecium, and by the terminal hairs which 
are drawn out into long, hyaline, tangling, easily collapsible 
threads, the branches of which may be very easily overlooked 
except with higher magnifications. 
18. CHAETOMIUM CUNICULORUM Fuckel, Symb. Myc. 89. 1869 
Brownish-black. Perithecia spherical, ovate or egg-shaped, 
370 и. Terminal hairs few, dark brown at base, lightly colored 
at tips, twice as long as the perithecium, straight below, stiff, 
septate, 5-7 шіп thickness, seldom branching at the base, more ог 
less encrusted with calcium oxalate, thickly entangled, forming a 
compact mass about the ostiole, some remaining simple, others 
branching dichotomously at their summits and anastomosing 
with each other by their free ends. Lateral hairs straight, rigid, 
tapering, unbranched. Asci club-shaped, 8-spored. Spores dark 
olive-brown, elliptical or spindle-shaped, barely apiculate at 
the ends, 10-12 X 7-9 u 
ExsiccaTI.—Fung. Rhenan. 1961. 
Type locality: Freinweinheim, Germany; on rabbit dung. 
Reported also by Bainier as occurring very commonly on dung of 
rabbit. 
In spite of repeated attempts it has been impossible to obtaina | 
satisfactory mount from the type material of Ch. cuniculorum 
Fckl. from the set of Fungi Rhenani at Harvard University: | 2 | 
Тһе specimens consist of two rabbit pellets, exposed to the leav ^^ 
of the book. These pellets are thickly covered with perithecia of 7. 
Sordaria, but at best only fragments of perithecia of Chaetomium | 
could be obtained. In several cases many bases of hairs could 
