The Genera Hypocrella and Aschersonia. 



(A Preliminary Note.) 

 BY 



T. FETCH, B.Sc, B.A. 



TN 1906 Mr. J. Parkin published in this Journal a Paper on 

 -*- " The Fungi Parasitic on Scale Insects, " based chiefly 

 on material from Ceylon and the East which had been accu- 

 mulated by Mr. E. E. Green, the well-known authority on 

 Coccidae, and until recently Government Entomologist of 

 Ceylon. After the pubUcation of Parkin's Paper the material 

 was returned to Ceylon, and was handed over to me by 

 Mr. Green as a basis for further work on the subject. Addi- 

 tional material was subsequently collected and examined, and 

 some idea gained of the range of variation in the Eastern 

 species ; but it was not considered advisable to pubhsh any 

 further account, in view of the number of names already 

 extant, until an opportunity had been afforded of examining 

 the type specimens in European herbaria. 



That opportunity came in 1911, when I was able to examine 

 all the species of these genera in the herbaria of the Royal 

 Botanic Gardens, Kew, the British Museum (Natural History), 

 Berhn, and Paris, through the courtesy of the Directors and 

 officers in charge of those collections, to whom I desire to 

 record my sincere thanks. 



The knowledge thus acquired was thought to justify an 

 appeal to the possessors of those types which were not re- 

 presented in the herbaria mentioned, and my request for the 

 loan of these met with a gratifying response. To Professors 

 von Hohnel, Moller, Patouillard, Penzig, Raciborski, Saccardo, 

 Spegazzini, H. Sydow, Theissen, and A. Zimmermann I am 

 indebted for kind assistance in the loan of types, and to 

 Dr. E. J. Butler, Mr. F. W. South, Mr. H. S. Fawcett, and 

 Dr. E. D. MerriU for general material from their collections. 



Annals of the Royal Botanic Gardens, Peradeniya, Vol. V., Part VII., Sept , 1914. 

 6(4)14 i^V 



