Notes and Brief Articles 



277 



2. In cultures lo to 12 days old, undifferentiated cylindrical 

 phialides form single, round, small conidia at the end of their 

 thread-like summit. 



3. The base of the phialide becomes swollen, while other 

 conidia are formed basipetally below the terminal one, so that 

 the phialide terminates into a zig-zag sporiferous thread as is 

 typical in Beauveria. 



4. The phialides may become forked, and yield several zig-zag 

 sporiferous threads. 



5. Phialides group by twos on vegetative hyphae, and the 

 phialidiferous parts of the hyphae become swollen. 



6. Typical phialides group into a glomerule at the end of a 

 differentiated phialidiferous hypha, which may be termed a 

 prophialide, such as exists in the Prophialidae. 



Undifferentiated conidial threads have been interpreted by 

 Vuillemin as regressive phialides in B. Bassiana. But it appears 

 that all the conidial forms which we have recorded are normal 

 phases of the ontogenic development of Beauveria, and they seem 

 to be of phylogenetic significance, as they actually link the 

 Beauveria both to the lower and to the higher Conidiosporae.^ 



Literature Cited 



Beauverie. Les Muscardines. Rev. gen. bot. 26: 81-157. I9i4- 

 Dufrenoy, J. Les formes de degenerescence des chenilles de Cnethocampa 



pityocampa parasitees. C. R. Soc. Biol. 82: no. 9. 22 March, 1919. 

 Rev. de Pathol, comp. 19: no. 155, 96-100. 1919. 



Picard. Les champignons parasites des insectes. Ann. Ec. nat. Agric. Mont- 

 pellier, 1914. 



Jean Dufrenoy 



Collecting Fungi in Virginia 



During the latter half of July, 1919, the writer made a tour 

 through parts of southwest Virginia, returning by way of Blue 

 Ridge Springs, Bedford City, Lynchburg, and Falls Church. A 

 drought early in the month was followed by over a week of rain, 

 which brought out an unusually large and diversified crop of 



1 We are indebted to Professors A. Guilliermond and J. Beauverie for the 

 determination of the Beauveria and helpful suggestions. 



