•CEW YOWK 



•OTAINICaL 



QARUiilN 



STUDIES IN ENTOMOGENOUS FUNGI: 



II.— THE GENERA HYPOCRELLA AND ASCHERSONIA. 



BY 



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



CONTENTS. 



Iutroductorj\ 



Aschersonia. 



Hypocrella. 



The relation of Hypocrella to Aschersonia. 



Structure. 



The Perithecia. 



The Pycnidia. 



Association with Insects. 



Distribution. 



Classification. 



Systematic Account. 



List of Species. 



Key to the known Species. 



Lecaniicolae. 



AlejTodiicolse. 



Species non visaa. 



Species dubise. 



Species excludendae. 



Bibliography. 



' Introductory. 



THE genera Hypocrella and Aschersonia include species 

 of fungi which occur superficially on the leaves and 

 stems of living plants. Hypocrella is ascigerous and belongs 



Annals of the Royal Botanic Gardens, Peradenlya, Vol. VII., Part in., October, 1921. 



6(9)21 (23) 



