Feb. 1903 ] A New Species of Cephalosporiuvi 
5 
A NEW SPECIES OF CEPHALOSPORIUM. 
W. A. ICELLERMAN. 
A quantity of conspicuous conidiophores was noticed on a 
single dead stem in the greenhouse of the Botanical Department, 
Ohio State University. This was subjected to examination but 
its identification with any described species was not satisfactory 
and accordingly the material 
was placed in the hands of Mr. 
J. B. Ellis for inspection, who 
pronounced it an undescribed 
species of Cephalosporium. A 
drawing to illustrate the ap¬ 
pearance and structure was 
made with the aid of the cam¬ 
era by J. G. Sanders, the fig¬ 
ures i, 2-3, and 4 being mag¬ 
nified no, 550, and 1300 diam¬ 
eters respectively, but reduced 
to one-half these dimensions 
by the engraver. The descrip¬ 
tion of the species is as fol¬ 
lows : 
Cephalosporium den- 
droides E. & K. — On dead 
herbaceaous stems in a green¬ 
house (Ohio; Kellerman, 3982). 
Sterile hyphae inconspicuous; fertile hyphae erect, continuous, 
hyaline, about 1 mm. high, and 6-7 v thick, sending out from 
the upper half of their length numerous short branches at right 
angles with the central erect hyphae, narrowed below, their tips 
swollen and bearing the elliptical or oblong-elliptical, hyaline, 4-6 
x 2-3 jj. conidia in a loosely compacted head. The fertile hyphae 
stand scattered singly and with their numerous branches bearing 
the snow-white conidia resemble a miniature forest after a snow 
storm. 
Corresponds to Stackylidium in the Dematieae. 
