776 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



2. The conidia of B. chierea found abundantly on a Vaucheria 

 sown in a damp chamber on boiled grapes, produced abundant Botrytis 

 and a Peziza resembling P. Fuckeliana. The ascospores sown in the 

 must of boiled grapes in a damp chamber, produced an abundant 

 mycelium, and sclerotia, but without any trace of Botrytis ; the same 

 ascospores sown on vine-leaves gave birth to sclerotia and Botrylis ; 

 these sclerotia sown in sand produced Botrytis and cupules of Peziza. 



3. The Botrytis cinerea growing naturally on decaying fruits, 

 gave rise successively to the sclerotial, conidial, and ascophorous 

 generations. 



4. The ascospores of P, Fuckeliana, and the conidia of B. cinerea, 

 both ciiltivated in the open, developed in an identical manner, giving 

 rise to a uniform resting mycelium, which may remain for a long 

 time after the death of the ordinary mycelium, after which it developes 

 into a new mycelium, and finally into sclerotia. 



5. The same sclerotium may develope either into Botrytis or into 

 Peziza, the conidiiferous filaments being the dii-ect continuation of 

 special mycelial filaments of the sclerotium. 



6. The cycle of development of P. Fuckeliana, starting from the 

 ascospore, may be stated as follows : — 



Ascospore. 



I 

 Sclerotium 



Botrytis 



Botrytis 



I 

 Sclerotium 



I 

 Ascospore 



Sclerotium 



1 

 Ascospore 



I 

 Botrytis 



Sclerotium 



I 



Botrytis 



Botrytis 

 Sclerotium 



Ascospore 



7. The generic name Botrytis has the advantage of priority, and 

 the various stages of development may be stated as follows : — 



BoTETTis (Mich, et auct.) genus Discomycetum. 



a. Mycelium sclerotiogenum (Sclerotia auct.). 

 h. Forma conidiophora {Botrytis sp. auct.). 

 c. Forma ascophora (Peziza auct. ; Sclerotina Fuckel pr. p. ; 

 Butstroemia Karst. pr. p.). 



BOTEYTIS CINEREA (Pcrs.). 



Mycelium sclerotiogenum (Sclerotium echinatum Fuckel) — f. conidio- 

 phora (Botrytis cinerea Pers., B. acinorum Fres., B. vulgaris auct. et 

 forsan B. elegans Lk.) — f. ascophora (Peziza Fuckeliana De B,, Sclero- 

 tinia Fuckeliana Fuckel). 



To this genus would belong all the forms of Peziza with a 

 sclerotial mycelium and a conidiiferous Botrytis-ioxva. 



The second species of Peziza studied was derived from sclerotia 



