21 



only about .5 to 1 cm. with a surface epot of .5 cm. after two 

 weeks. No observations have been made upon fruit which had been 

 inoculated more than a month. 



The Ge nus 



The genus Gliocladium was described by Corda, the type 

 speciss being G. penic il licides . According to Saccardo the genus 

 may be described as having the sterile hyphae creeping, the fertile 

 hyphae growing erect, simple, septate, and forming upon branching 

 a brush-like apparatus upon which the conidia are borne. The co- 

 nidia are at first catenulate but later are enveloped by a mucilag- 

 inous substance into a little head. It is only in the presence of 

 this sticky coat on the spores of the Gliocladium that Gliocladium 

 and Penicillium differ essentially. There are fourteen species 

 given in the Sylloge Fungorum, most of which occur on decaying 

 fungi or other dead organic matter. None of them seems to be of 

 any economic importance except G. agaricinum Corda and Mass. which 

 arrests growth and breaks the pilei of mushrooms. 



Th e Spe cies 



The fungus was submitted to Dr. Chas. Thorn, who said: 



"I have examined the culture and find a form which I have studied 



several times during the last ten years. Thus far, I have called it 



"Gliocladium viride Matr." The lot to which this belongs needs 



someone's tims and attention, but this one runs close enough to 



the form named above to forbid separate nomenclature, unless for 



reasons based on a larger volume of critical study than I have 



2 



thus far been able to give it." An article by M at ruchot gives 



1. Corda, A. J. C. Ic. fung. IV, p. 30. 



2. Saccardo, P. A., Syll. II, p. 594. 



