MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 169 
4. CHAETOMIUM сохтовтом Peck, Rep. New York State Mus. 
Nat. Hist. 49: 24. 1896 
PLATE 9, FIGS. 10-12 
Black. Perithecia large, globose ог subglobose, 875 X 1050 и. 
Lateral hairs numerous, straight or flexed, clearly septate, smooth, 
some with equal diameter and olive-yellow throughout, others 
thicker (about 5.6 и) and dark olive-brown at base, gradually 
tapering and fading toward tip. Terminal hairs dense olive- 
brown to black, without visible cross walls, roughened throughout 
with blunt, flat-topped projections, nearly straight below, con- 
torted above into loops which are separated by short, abrupt 
arches, terminating іп an arch with circinate, recurved tip, 15 и 
in thickness at the crown of the terminal arch. Asci * fugacious." 
Spores when young hyaline, refractive, filled with refractive 
globules, when mature dark rich olive-brown, irregularly lemon- 
shaped, not always symmetrical, sometimes apiculate at ends, 
sometimes barely angular, 11.6 X 9.4 и (10.5-12.5 X 7.5-10.5). 
So far as the writer is aware this species has never been found 
except in the type locality: Woodside, New York; on bulbs of 
lilies, Lilium longiflorum (F. C. Stewart). 
On account of the fact that only two mounts of the type 
material received from Dr. Peck have been available, it has been 
impossible to determine the characteristics of the asci, for although 
the perithecium in one mount was broken and the young asci 
Were exposed, they could not be accurately studied. It has seemed 
desirable, therefore, to quote from the original description re- 
garding the asci. 
This species has certain features in common with CA. cris- 
batum, Ch. simile, and Ch. tortile. From the first it differs in the 
Sreater dimensions of the perithecium, and the greater width 
and more regular looping of the terminal hairs. From Ch. simile 
it differs in the greater dimensions of the perithecium, the greater 
width and more compact looping of the terminal hairs and the 
greater size of its spores. From Ch. tortile it differs in the greater 
dimensions of the perithecium, in the greater width and more 
regular looping of its terminal hairs and the greater size of its spores. 
5. CHAETOMIUM SIMILE Massee & Salmon, Ann. Bot. 16: 71. 
pl. 4, f. 8,0. 1902 
Chaetomium glabrum Bainier, Bull. Soc. Myc. France 25: 214. 
bl. 21, f. 1-4. 1910. 
