IDENTITY OF AMERICAN AND FRENCH SPOROTRICHOSIS 105 
grow in the soil, in water, and under other conditions; certain 
varieties are pathogenic for plants. 
Infection with varieties pathogenic for man, excepting the 
two here under consideration, are apparently very rare. The 
following are mentioned in this connection. 
Sporotrichum dori, an organism isolated from a human case 
and very imperfectly described by Dor in 1906, was evidently 
a different organism morphologically, culturally, and in its 
pathogenicity for animals. The culture has been lost and 
rio similar organism has since been found. 
Sporotrichum indicum, an organism described by Castellani 
in 1908, was isolated from two cases of sporotrichosis in Cey- 
lon. It is impossible now to compare them with other varie- 
ties since these cultures have also been lost. From the orig- 
inal description given by Castellani it is clear that the or- 
ganisms are very similar to, if not identical with, the French 
and American varieties. He says that ‘‘it closely resembles 
Sporotrichum beurmanni; the mycelial threads are somewhat 
larger, between 2 and 3 microns wide; spores roundish (3 
to 5 microns in diameter) or oval (4 to 5 microns long and 3 
to 4 microns in breadth). Colonies on maltose agar may be 
of various colors,—greyish, light brownish, dark brownish, 
black’’.t There are no differential characteristics here that are 
important and I am inclined to believe these strains are identi- 
cal with the American variety of Schenck. De Beurmann 
and Gougerot provisionally classify it as Sporotrichum beur- 
manni var. indicum. 
Sporotrichum gougeroti is an organism isolated from a case 
in France by Gougerot who thought it different from the 
Beurmann type in several respects, chiefly in macroscopic 
growth and pigment production. De Beurmann and Goug- 
erot observed one case only. 
The Sporotrichum jeanselmei was isolated by Jeanselme and 
Chevallier in 1910 from a human case and a second case 
appeared as an experimental infection accidentally obtained 
in the laboratory from the culture of the first case. According 
to de Beurmann and Gougerot this organism is very similar 
1Castellani & Chalmers, Manual of Tropical Medicine, London, 1910. 
