ASYMMETRICA-DIVARICATA 335 



the chemical and physical properties of the "curling factor" were reported 

 by McGowan (1946). 



More recently, Grove and McGowan (1947) have reported that the 

 "curling factor" produced by Penicillium janczcwskii is identical with 

 griseofulvin, CivHnOeCl, which was isolated in 1939 by Oxford, Raistrick, 

 and Simonart from P. griseo-fulvum. Curtis and Grove (1947) have re- 

 ported the production of a red pigment possessing anti-bacterial and 

 fungistatic properties by a member of this series, as yet not identified to 

 species. Chemical and biological investigations of the pigment are in 

 progress. 



