Fic. 6.—PUCCINIA RUBIGO VERA. 
a, Two postules, showing the subepidermal nature of the fungus, and bed of paraphyses ; 4, Group 
of paraphyses; c, Separate paraphyses; d, Part ofa blade of Wheat with the Puccinia rubigo 
vera uponit; ¢, A piece of straw with the same; /, A piece of straw affected with Puccinia 
graminis, for comparison. 
From an electrotype supplied by “‘ The Gardeners’ Chronicle.’’ 
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