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TEXT-BOOK OF FUNGI 



Tubercularieae 



In this family the hyphae are densely compacted to form 

 a hard, subglobose, wart-like body, which is erumpent or 

 bursts through the matrix, below the surface of which it is 



FIG. 141. Fusarium heterospomm, a parasite attack- 

 ing ears of barley and other cereals, destroying the grain, 

 i, portion of an ear of rye showing diseased grains ; 2, 

 diseased grains shown singly ; 3, section of portion of a 

 diseased grain showing clusters of sporophores on the 

 surface : these sporophores, along with the conidia, form 

 pinkish orange, somewhat gelatinous masses when moist ; 

 4, sickle-shaped, multiseptate conidia. Fig. i, nat. size; 

 remainder mag. 



developed. The bright coral-red warts of Tubercularia 

 cinnabarina^ so abundant on dead twigs, branches, etc., is 

 a good example of the general structure characteristic of 

 the family. 



Many species are destructive parasites. Some of the 

 forms of Tubercularia are known to be conidial forms of 

 the ascigerous genus Nectria. Forms of Fusarium are also 



