14 



the same hosts. L. alismatis, however, has been shown by Cook 

 (1926) to be synonymous with L. junci, L. grarninis, L. bellidis, 

 and L. menthae as far as host relationship, general structure 

 and development are concerned, and the name L. junci will be 

 retained by the author for the species found in Van Cortlandt 

 Park. There are no reports in the literature as far as I know of 

 the occurrence of L. junci and L. isoetes in America, and the 

 present discovery indicates that species of parasitic slime molds 

 are widespread in their distribution. A more intensive study on 

 the cytology and cross inoculation of these two species is now 

 under way and will be reported later. 



Columbia University, New York City 



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