103 
were produced the fungus was evidently in an unfavorable medium and 
was short-lived. However, some very important results were obtained. 
In forty-three hours from the time of sowing, a distinct mycelium had 
been formed which bore numerous basidia at right angles to its branches 
and these were already producing spores (Fig. 7 b). Along with these 
spore-producing branches were others which differed from the basidia 
and ordinary mycelial branches in being devoid of visible granular con¬ 
tents, and on close inspection seemed to be a trifle darker colored and 
thicker walled. They sometimes had a septum near the base and were 
shaped like setae. Twenty-four hours later there were well developed 
setae on the same mycelium that bore the basidia and spores. As the 
mycelium grew older more setae made their appearance; but in the moist 
environment in which it was necessary to keep the artificial substratum 
nearly all of them bore spores and were even more irregular in appear¬ 
ance than they are in nature. 
After the setae begin to form it is difficult to find basidia and setae 
close together. The parts of the mycelium that bear setae bear nothing 
else. Septa are often produced in the mycelium at each side of the 
bases of the setae and the cell thus formed sometimes grows larger aud 
darker colored than the remainder of the filament, while the threads 
which bear setae are often coarser and darker colored throughout. This 
may explain the dark colored cells at the bases of the tufts of setae as 
they occur in nature. 
1. Tuft of basidia, with young spores rising from a single thread, showing mode of formation of fruit¬ 
ing surface. 
2. Basidiutn and seta springing from the same mycelial thread. 
3. 4, and 5. Spores twenty-four hours in water, showing spores produced by budding. 
6. Germinating spore, with germ-tube and secondary spore, which in turn has sent out a germ-tube 
bearing a spore at the end. 
7 and 8. Spores forty-eight hours in water. 
