598 Went. — Notes on Sugar-cane Diseases. 
I got the same result by inoculating sterilized canes with 
the mycelium or with the large black spherical conidia. In 
operating with these conidia I succeeded, in two cases out 
of ten, in obtaining the formation of Melanconium - pycnidia 
on the surface of the cane, getting thus the complete evidence 
that these two forms — the stylospores and the large black 
conidia — belong to the same species. I ought to add that 
the Melanconium - stylospores never developed on sterilized 
canes unless I had previously inoculated these canes with the 
Melanconium - stylospores or with the mycelium developed 
from them, or with the large black spherical conidia. As the 
disease attributed to the rind-fungus does not yet exist here, 
I regret that I am not able to experiment with Melanconium 
from the West Indies, because I do not wish to introduce this 
fungus in the living state into Java, considering the danger 
of infection. 
V. Summary. 
i. Colie to trichum falcatum, being a saprophyte on the leaves 
of the sugar-cane, can become a wound-parasite under 
conditions still unknown, and is thus the cause of the disease 
of the cane at Java called Red Smut. 
1 . No evidence has been given up to the present that 
Colletotrichum falcatum is the cause of any other sugar-cane 
disease. 
3. Thielaviopsis ethaceticus is a general saprophyte, behaving 
sometimes as a wound-parasite, and then causing the pine- 
apple-disease of the sugar-cane in Java. 
4. There is some probability that the macro- and micro- 
conidia described by Massee as a form of Trichosphaeria 
Sacchari are identical with Thielaviopsis. 
5. At present only micro- and macroconidia of Thielaviopsis 
are known. 
6 . Massee has not given sufficient evidence that the ascigerous 
stage, called Trichosphaeria Sacchari , and the macro- and 
microconidia, are forms of the same fungus. 
7. The evidence given by Massee of these macro- and micro- 
