66 
Frederick A. Wolf, 
maturity, liberating the conidia (fig. 2). The conidia are curved, tapering 
at the upper end and plnriseptate. There are typically no constrictions 
at the septa although they have been observed to occur. They vary in 
Photograph of English Walnut leaves affected by Cylindrosporium Juglandis. 
size, being 20—50x3—3,5 microns and are hyaline with réfringent 
granules and oil droplets. Conidia taken from dried material which has been 
in the laboratory for a year, had shrunken and measured 16—28x2,5—3 
microns. 
