Numerous raised spots make their appearance on the 

 surface of the bark, these split open and expose the black 

 perithecia of the fungus which are embedded in a stroma. 



The fungus has also been recently received at Kew from 

 West Africa. 



Diagnosis. — Perithecia aggregated, 3-7, globose, black, 

 finally erumpent, glabrous, 160-180 microns diamr., with 

 a minute ostiole which scarcely reaches the surface of the 

 stroma ; spores elliptical, obtuse at both ends, 1 -septate in 

 the middle, not constricted, fuliginous, 32-35 by 15-16 

 microns. 



Ridley: "A New Fungus Pest on Para Rubber"; 

 Agric. Bull, of the Straits and Federated Malay States, 

 Vol. VIII., p. 310, 1909. 



DIPLODIA EPICOCOS, Cooke. 

 (Coconut Disease). 



This fungus was originally described on the leaves of the 

 coconut palm in India. Recently a leaf disease of coconut 

 in Trinidad has been attributed to it. 



Diagnosis: — Perithecia scattered or almost gregarious, 

 at length superficial or semi-immersed, globose, black ; 

 spores elliptical, i-septate, constricted at the septum, brown, 

 22 by 10-12 microns. 



Diplcdia sp. ; a species of Diploaia is said to attack ripe 

 pineapples in the West Indies. It effects an entrance 

 through the cut end of the fruit stalk, passes up the central 

 vascular core and spreads to the surrounding pulp. The 

 perithecia appear as black dots under the rind. 



STOCKDALE : West Ind. Bull., Vol. VIII, p. 163. 



Sphceronema adiposum, Butler, causes a black rot of 

 sugar cane in Bengal. Dusky red streaks appear in the 

 interior of the cane and a condition of decay of the interior 

 sets in. The surface of the cane shows no signs of disease. 



This fungus possesses an endoconidial stage. 



Diagnosis : — Mycelium densely woolly, black ; fertile 

 hyphae simple, septate, producing endoconidia ; endo- 

 conidia of many forms, cylindrical, pyriform or globose, 

 some hyaline or brown and smooth, others fuscous and 

 warted, 9-25 by 4'5-i8 microns ; perithecia globose, hairy, 

 black, with a subfimbriated mouth ; spores hyaline, con- 

 tinuous, acute at both ends, 6'5 by 3*5 microns. 



41 



