EREMASCACEAE IMPERFECTAB 



189 



feet stages has removed several organisms from the imperfect stages and 

 placed them in the Eremascaceae. Since some of these researches have much 

 biologic interest for those attempting to determine morphogenetic factors, 

 they may be summarized in more detail. 



Marantonio (1893) working with a thrush organism found that sprouting 

 occurred almost exclusively on solid media with occasional hyphae in old cul- 



Fig-. 38. — Blastodendrion intermedium. Showing the effects of various sugars on the 

 morphology. 1, glucose ; 2, starch ; S, galactose ; Ji, maltose ; 5, lactose ; 6, raflflnose ; T, inulin ; 

 8, erythritol ; 9, mannitol ; 10, asparagin. (After Ciferri & Ashford 1929.) 



tures. On liquid media he found mycelium either in the pellicle or in the 

 granular deposit that appeared without turbidity. The lower the pH, the 

 greater the quantity of mycelium found. These observations Avere confirmed 

 and extended to a large number of media by Concetti (1900). 



