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MISC. PUBLICATION 568, U. S. DEP'T. OP AGK1CTJLTTJKE 



or the more readily available but fragile match boxes, with soft crumpled 

 pa^er to prevent breakage of the delicate fundus structures. 



All fungus specimens must be dried thoroughly before shipping. Leafy 

 material is pressed and dried under pressure. Dt-nd, or dry shriveled 



Figure 31. — Various examples of leaf diseases. .4 , Tar spot of grass,fr< quent in Tropics; 

 B, shot-hole leaf spot; C, zonate leaf spot; D, leaf blight; E, leaf disease of palm, 

 common in Tropics. 



leaves may be softened up before pressing by wrapping them for a while 

 in a wet cloth or newspaper. If small enough, entire plants are collected 

 and pressed. Large woody cankers may need to be chopped or sawed 

 out. Large decayed fruits can be quartered, freed of pulp, and then 



