190 
Journal of Agricultural Research 
Vol. XXVII, No. 4 
Cephalosporium acremonium Corda (9), (fig. 3), was described and 
figured by Corda in 1839, giving it somewhat wide limitations so that it 
includes any Cephalosporium with small simple oblong or ovoid spores. 
He found it on dead insects and fungi. The spores figured by him 
appear too broad to be identical with the species described later and 
indicate that the organism dealt with in the original description may be 
identical with C. acremonium form major described by Penzig (38) and 
later by Grove ( 18 ). The spore measurements reported for the species 
and subspecies of C. acre¬ 
monium are presented in 
Table X. 
Dietrich, 1848 ( 12 , p . 
157), and Bonorden, 1851 
(3, p. 108 ), gave almost 
the same description and 
like Corda did not give 
spore measurements. 
The first report of the 
fungus on corn was by 
Fresenius in 1863 (17, p. 
94 - 95 )i i %• 4 )» who re¬ 
ported it on the drying 
leaves. He gave a careful 
description, spore meas¬ 
urements, and figures, 
and retained the name C. 
acremonium. Since his 
description is entirely in 
accord with the findings 
of the authors, a transla¬ 
tion of it is presented 
later in this paper. Ri- 
volta (41) in 1873 figured 
it together with other 
fungi in his study of 
plant parasites in their 
influence on digestion in 
domestic animals. Sac- 
cardo, 1878 (44, p. 271 ), 
reported it parasitic on 
Hypoxylon purpurea. 
Penzig, 1882 (38), re¬ 
ported a Cephalosporium parasitic on Alternaria tenuis in leaves of 
Citrus aurantium and classified it as C. acremonium Corda form major 
Penzig. He thought it probably identical with Acrostalagmus albus Pr. 
The latter (40, p. 126) was found on dead insects in leaves of Citrus 
limonum. Saccardo, 1881 (43) and 1886 (45), Costantin, 1888 ( 10 } p . 
pr), Lindau, 1889 (26, 27 , 28 ), Sorauer, 1908 (48), Ferraris, 1910 (16, p. 
6/5), and Oudemans, 1919 (35, p. 692 ), described and figured or gave 
references to this fungus. Lindau named another fungus host, Chloridium 
gigantium. Massee, 1887 ( 32 ), found a Cephalosporium parasitic in 
hyphae of Heterosporium colocasiae and named it C. acremonium Corda 
var. uniseptatum Massee. Oudemans and Koning, 1902 (36), found C. 
acremonium in forest humous soil in Holland. Their careful descrip- 
Fig. 3.—After Corda (g, t. j, p. 11, pi. 2, fig. 2Q 
1. Colony. 
2. Few plants much enlarged. 
3. Single plant greatly enlarged. 
4. Piece of hypha with two sporophores, one bearing a spore- 
head greatly enlarged. 
5. Spores greatly enlarged. 
