DISEASES CAUSED BY FUNGI 



29 



leaf-sheaths of banana, where they have also a connection with 

 disease, and the same or similar species are found on the "strainer" 

 of the coconut palm. These are at most rather weakly parasitic. 



Fig. 4 Stigmatomycosis. Species A 



A much more definite parasite is Marasmius perniciosus, Stahel, 

 the cause of the witch-broom disease of cacao in Surinam. The 

 black threads of the so-called horse-hair bhght are the mycelial 



strands of a Marasmius, which is no longer regarded as more 

 than saprophytic in habit. 



The Fungi infecting Bug Punctures [Stigmatomycosis). 



A type of disease not previously recognised has in recent 



