58 MICROBES, FERMENTS, AND MOULDS. 
we cannot recognize any mycelium, and in this par- 
ticular they are allied with the ferments, of which we 
shall speak presently. The fungus consists of round 
cells, which multiply by budding. De Lanessan 
regards them as a separate group, to which he gives 
the name of Microsporex, while he designates those 
parasites of skin covered with hair which possess a 
distinct mycelium under the name of Trichophyta. 
The Pelade Fungus.—Pelade is another disease of 
Fig. 29.—Pelade fungus: epidermie cells, charged with spores {x 500 diam.). 
the skin covered with hair, which is caused by Micro- 
sporon Audouini, and which presents the characters 
just indicated. It would, therefore, be an error to 
give it the same generic name as Microsporon furfur, 
a fungus of which the mycelium is well developed, 
if the recent researches of Grawitz, to which we 
shall presently return,* did not tend to snow that 
Microsporee and Trichophyta are only forms of the 
same parasite in different phases. 
* See chapter on Polymorphism of Microbes. 
