MONOGRAPH OF CHAETOMIUM AND ASCOTRICHA 177 
fading to light brown, pale olive, or colorless tips, at maturity 
bearing on the most remote branches clusters of refractive needles. 
Asci club-shaped, 8-spored, 33.7 X 8.1 и, pars sporif. 16 и. Spores 
when young greenish hyaline, refractive, filled with globules, 
when mature dark, rich, olive-brown, egg-shaped to lemon- 
shaped, slightly more pointed at one end, apiculate at both ends, 
6.3 Х 4.7 и (5.6-6.4 Х 4-4.8). 
ExsiccATI.—Sub Ch. setosum ЕП. & Ev.: Fung. Columb. XII, 
1126; М. A. Е. 24 Ser. XX XV, 3423. 
A rather common species, having been found in cultures of 
brazil nuts at Cambridge, on straw from Nairobi, Congo, on corn 
stalks from Cambridge, and on old fruit from Germany (Chivers 
No. 16). Reported by Peck on an old broom at Albany, New 
York. Reported also as Ch. setosum E. & E. by Ellis, and 
as Chaetomella Cavallii by Mattirolo on paper. Type locality: 
British Museum; on twine (W. Carruthers). 
The writer is indebted to the Royal Botanic Gardens at Kew 
for type specimens of this species which was first described by 
Cooke in 1873 as Ch. funicolum or “Twine Bristle Mould,” and 
which has since been found and reported by several writers in 
various localities. Although the species seems to have been 
clearly characterized by Cooke, Ellis (35) redescribed it in 1897 
under the name Ch. setosum, in apparent ignorance of the fact that 
Winter (112) had previously used this combination for an entirely 
different plant. Authentic specimens examined in the exsiccati 
mentioned below are found to be identical with Ch. funicolum 
ооКе. In 1901 Saccardo changed the name to Ch. Bartholomaei 
in honor of the collector who sent the specimens to Ellis. 
Although no specimens have been available the writer is 
convinced that the plants which M. Mattirolo (61) described and 
figured in 1909 under the name Chaetomella Cavalli аге identical 
With Cooke's species. It was discovered in considerable numbers 
оп а piece of paper which wrapped some moss. Mattirolo stated 
that, considering the present confusion of literature in the genera 
Chaetomella and Chaetomium, he thought it best to assign his 
Species to the genus Chaetomella. ln spite of every attempt, 
he could not determine whether the spores were produced T nee 
perithecia or pycnidia or whether in an ascus or on а basidium. 
His three figures show a young perithecium, a branched terminal 
