a parasitic Fungus on Sugar-Cane and Cacao. 691 
vessels and cells, and where the hyphae have commenced to 
darken in colour this point can be determined without stain- 
ing (Fig. 12). 
In cases where pods are apparently attacked by the Fungus 
this is very common near the ‘ breaking-grounds/ where the 
‘beans’ are extracted by the pickers, and where it is the 
custom to leave the empty husks on the ground in heaps. 
The husks speedily become covered with the spores of the 
Fungus, as this form lives on them as a saprophyte. The 
rind of the pod turns brown and mycelium soon spreads to 
the mucilage surrounding the seeds, completely destroying 
the pod and its contents, usually in from six to ten days. The 
diseased areas commence as a brown spot, as a general rule 
either at the free end of the pod, or in the groove round the 
insertion of the stalk, or at the point where the pod comes in 
contact with the branch. These places are those which are 
liable to be moist long after the rest of the pod is dry, and 
indicate the probability that infection may here be effected 
by spores without any previous wounding. 
The artificial cultivation of the Fungus was carried out in 
an exactly similar manner to that employed in the case of the 
sugar-cane Fungus described above, and as far as possible 
similar cultures of the two forms were made and examined 
at the same time. 
Stages in the germination of the spore are shown in Fig. 13. 
The germ-tube grows out into a long hypha, at first slowly, 
but afterwards much more rapidly, and extensive branching 
eventually takes place. Septation of the hyphae was not 
noted before twenty hours after sowing, and after two days 
fusions of the hyphae were common : about the same time 
the mycelium commenced to grow down towards the water 
on the floor of the moist chamber, reaching it four days after 
sowing (Fig. 7). When three days old the mycelium gradually 
changed colour, passing through various shades from light 
yellow to olive green, and at the same time the hyphal con- 
tents began to aggregate in certain portions of the mycelium, 
leaving the rest empty. Oil drops also made their appear- 
