EXPLANATION OF THE ILLUSTRATION 
Covonorueca capuca Sellards 
Upper figure: Photograph of a nitrocellulose peel 
showing pollen-grains with the two furrows and 
the two dark bodies which bear some resemblance 
to nuclei. Peeled from specimen No, 50383. Pho- 
tographed with a red filter. 
Lower figure: Photograph of the same peel photo- 
graphed without filters, showing apparently a sin- 
gle furrow. 
[ 168 ] 
