THE RED FUNGUS. 25 



Orlando, on the imdorsido of swoct potato loaves, that several })ushel3 

 of leaves of this })laut were picked as the easiest way of j)r()curing a 

 supply of fungus for experimental purposes. Mr. W. C. Temple, of 

 Whiter Park, also noted a similar attack upon a sweet potato aley- 

 rodid, prohably the species above mentioned, in July, 1909. The 

 senior author has several times seen pustules on Aleyrodes Jioridensis 

 Quaintance on guava at Orlando and Manatee, and on another, as 

 yet undetermined, aleyrodid attacking Spanish mulberry at Orlando, 

 while in 1908 Messrs. M. T. Cook and W. T. Home reported it 

 attacking A. liowanli Quaintance as well as A. citri in Cuba.* The 

 junior author has found a rank growth of this fungus on a white fly 

 {Aleyrodes dbutilonealla\d.) at Orlando. 



DISTRIBUTION. 



In Florida the red Aschersonia occurs in all the leading orange- 

 growing sections infested with the citrus white fly. The fact that 

 Dr. Webber reported it from such mdely separated places as Gaines- 

 ville, Bartow, and Fort Myers, is sufhcient evidence to warrant the 

 conclusion that even then its distribution was wider than kno\vn. 

 It is being continually reported from or introduced into new localities, 

 and at present may be said to occur in greater or less abundance in 

 Florida in all sections infested by the citrus wliite fl}'. It is most 

 widely distributed in Manatee, Lee, and Orange Counties. 



Outside of Florida the red Aschersonia now occurs in different 

 points in Louisiana, having been introduced by agents of the Louisiana 

 Crop Pest Commission. In 1905 Mr. F. S. Earle - reported this 

 fungus on A. citri in Cuba. In 1906 Mr. J. Parkin ^ mentioned 

 finding in Ceylon an Aschersonia closely resembling aleyrodis on 

 several undetermined species of Aleyrodes. Dr. Berger has identified 

 this species of fungus on citrus leaves infested with Aleyrodes citri 

 from Japan,* and the junior author found it attacking A. hoioardi in 

 1910 in both Cuba and Mexico. 



HYPERPARASITIC PUNOI. 



Thus far the red Aschersonia has not been subjected to wide- 

 spread attack by hy])erparasitic fungi. In sheltered places during 

 the late summer and in the fall the pustules sometimes become over- 

 grown by the species of Cladosporiiun mentioned more fully mider 

 the hyperparasitic fungi of the yellow Aschersonia. In a grove at 

 Mcintosh, Fla., examined in December, 1907, it was estimated that 

 fully 50 per cent of the red-fungus j)ustules were overgrown by this 

 hyperparasite. Old worn-out pustules are often entirely overrun late 



1 Bulletin 9, Cuban Experiment Station, p. 31. 



2 rrimer Informc Annul de la Kslacion Central .\grouomiea do Cuba, 1',I04 and 1905, p. 1C9, 1906. 



3 Annals Koy. Bot. Oard. Poradeniya, vol. 3, pt. 1, p. 3i'i, l'M\. 



* Ami. Kept. Fla. Agr. Exp. Sta. for year ending June 30, 1909, p. xxxvl. 



