nating within the ruptured apex of a hypha, terminal 

 conidium globose, 20-25 microns, the others barrel-shaped, 

 18-20 by 12 microns, blackish-brown. 



Ascigerous stage — perithecia broadly ovate, blackish- 

 brown, sparsely clothed with long, dark, rigid hairs ; asci 

 cylindrical : spores 8, hyaline, continuous, elliptic-oblong, 

 8-9 by 4 microns ; paraphyses absent. 



MASSEE : Annals of Botany, 1893, p. 5115. 



HOWARD : Annals of Botany, Vol. XIV, p. 617 (1900), 

 Vol. XVII, p. 373 (1903). 



{Pineapple disease). — Pineapples which have been packed 

 for storing or shipping frequently show signs of fungus 

 disease. The fungus most commonly present is Tri- 

 chosph(zria Sacchari. The diseased " pines " are soft and 

 watery, and emit a distinct odour of ethyl acetate. The 

 fungus can only effect an entrance at a wound, such as a 

 bruise on the surface or the cut end of the fruit-stalk. 



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



LEPTOSPH^RIA SACCHARI, Breda de Haan. 

 (Ring Spot of Sugar Cane.) 



Occurs in the West Indies, Java and India. The disease 

 commences in the form of small purplish spots on the leaf; 

 these spots increase in size and, as they expand, dry up in 

 the centre. Each spot takes the form of a ring or band 

 which is purple or brownish and outside of which is a yellow 

 area of the leaf. Finally, the spots become large and 

 elongated and frequently run together. 



On the surface of the leaf the hyphae produce 3-4-septate 

 conidia ; these have been shown by Mr. Breda de Haan 

 to be capable of infecting living leaves. A second spore- 

 form appears in the form of black dots on the upper 

 surface ; the dots are arranged in rows and are visible to 

 the naked eye. 



Burning all diseased leaves is effective in checking the 

 spread of the disease. 



Diagnosis : — Perithecia 140 microns diamr. ; ascospores 

 3-septate, 20-24 by 5 microns, brownish. 



BUTLER : Memoirs of Dep. Agric. in India, Vol. I, 

 No. 3. 



Wakker & Went : De Ziekten van het Suikerriet 

 op Java, p. 149. 



Melanomma henriqnesianum, Bres. and Roum. is 

 parasitic on the stem of the cacao plant in the island of 



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