196 MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 
exactly to the measurements recorded in the diagnosis, 14-16 ш 
X 7-8 ш. The presence of Ch. murorum Cda. may also explain 
the statement that the species is somewhat allied to Ch. crispatum 
Fckl, for the perithecia are old and the hairs are very dark, 
almost opaque, and except for the circinately coiled tips, have 
somewhat lost their true characteristics. 
It becomes evident from a study of the original description of 
Ch. cymatotrichum made by Dr. Cooke in 1883, and from an 
examination of mounts of type material supplied by the Royal 
Botanic Gardens at Kew, that this is identical with Ch. globosum 
Kze. 
Тһе writer has recently received from Dr. Saccardo specimens 
of Ch. Fieberi Cda., subspecies Saccardianum, described by 
Bommer and Rousseau in 1884 (78), and which according to - 
Saccardo (84, p. 86) is equivalent to Ch. Saccardianum. While 
the plants are not in the best of condition it has been possible to 
determine with a reasonable degree of certainty that this variety 
is identical with Ch. globosum Kze. It is stated in the original 
description that the perithecia finally collapse and become cup- 
shaped. This is true in nearly all of the perithecia examined. 
The terminal hairs have been worn away and the shiny, black 
perithecial walls have collapsed. It is also stated that the hairs 
bear rough spherical conidia. While it is not possible to determine 
the origin of these conidia which are scattered among the rhizoids 
and perithecial hairs, the writer has no hesitation in concluding 
that these are entirely foreign to the Chaetomia, and are the 
fruiting bodies most probably of a Cunninghamella. The small 
number of perithecia which could be found still clothed with 
hairs were typical in every way of Ch. globosum Kze. 
In 1884 Bommer and Rousseau (8, p. 207) published a new 
variety to Ch. Kunzeanum Zopf under the name fimicola. 
These authors compared their variety with Ch. chartarum, Ch. 
globosum, and Ch. Fieberi, and while type material is not at 
hand, it would seem from their description that the variety could 
well be included under Ch. globosum Kze. Marchal (55), refer- 
ring to this variety as forma fimicola, called attention to the fact 
that the spores, measuring 14 X 8.6 и, were a little larger than in 
the species above mentioned and that this plant could not be | 
