Diagnosis. — Spots subcircular, often confluent, centre of 

 spots greyish or rosy-primrose ; pustules originating 

 beneath the epidermis, minute, densely gregarious ; conidia 

 oblong, ellipsoid or ovate, 5-6 by 3-5 microns, biguttulate, 

 hyaline. 



MASSEE : Text-Book of Plant Dis., p. 278. 



GLEOSPORIUM MUSARUM, Cke. & Mass. 

 (Banana Anthracnose). 



A disease of ripe bananas was described from Brisbane 

 as being caused by this fungus ; it has since then been 

 recorded in the United States, but there is hitherto no 

 mention of its occurring in the West Indies. 



Black spots occur on the fruit and these gradually spread 

 over its entire surface, causing rotting to take place. When 

 the spores of the fungus are extruded a roseate tint is im- 

 parted to the spots. 



Diagnosis : — Pustules innate, erumpent, gregarious, with 

 a rosy tinge ; conidia elongated — ellipsoid, ends rounded, 

 continuous, hyaline, 10-12 by 4-5 microns, with granular 

 contents. 



MASSEE : Text-Book of Plant Dis., p. 428. 



Stoneman : Bot. Gac, Vol. XXVI., p. 69. 



SEPTOGLCEUM ARACHIDIS, Rac. 

 (Leaf Fungus of Ground Nut.) 



The fungus causes black spots to appear on the leaves of 

 the ground nut wherever it is cultivated in the Eastern 

 Hemisphere. The disease spreads rapidly and is said to 

 cause much damage in some countries. 



Diagnosis: — Spots orbicular, black, with a brownish-black 

 centre, distinctly limited and surrounded by a pale yellow 

 zone, 4-5 mm. broad in most cases, solitary or numerous 

 and occupying the greater part of the leaf's surface ; acervuli 

 arranged concentrically, gregarious, grey-black erumpent ; 

 conidia elliptic-fusiform, continuous at first, then 2-4 

 septate, 20-34 by 9 microns, grey. 



PETCH : Circulars and Agricultural fournal, Royal 

 Botanic Gardens, Ceylon, Vol. III., No. 21, 1906. 



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