Bui. 1038, U. S. Dept. of Agriculture. 
PLATE VIM 
Vertical Sections of Normal and Mottled Pecan Leaflets, Frotscher 
Variety. 
Collected in August, 1919, at Thomasville, Ga. Killed with Carnoy's fluid; Fleming's triple stain 
used. X 540. A.— Section of normal leaflet. B.— Green portion of mottled leaflet, showing the 
enlargement of the cells, the reduction in size of the intercellular spaces in the spongy parenchyma, 
and the unevenness in the arrangement of the palisade cells. Photomicrographs by'the writer. 
