1] Introduction to Fungi 5 
a long stalk (see Fig. 2). This fungus is known as a 
Mucor. Other threads give rise to a greyish powder, 
which under the microscope is seen to consist of 
numerous egg-shaped bodies like bunches of grapes. 
These are the seeds or, as they are usually termed, the 
spores of the fungus known as a Botrytis (see Fig. 3). 
We may also find a fungus bearing light-blue spores 
Fig. 3. Spores of Botrytis borne like bunches of grapes and some 
of the spores germinating. (Magnified.) 
borne in chains at the ends of branches which join to 
form a single stalk. This fungus is a Penicillium (see 
Fig. 4). 
Spores of any of these fungi placed under suitable 
conditions give rise to the same kind of fungus plant 
or mycelium as that on which they were borne. The 
following is a means of studying the growth of spores. 
Take a Ward’s Tube (see Fig. 5) and fix the base of the 
chamber to a glass slide by means of paraffin wax; 
put in a small quantity of water. Take some of the 
spores of the Botrytis fungus on a brush and put them 
