Bui. 1288. U. S. Dept. of Agriculture 
Plate II 
Leaf-Spot on Tomato and Other Hosts. — II 
A, Timsonweed (Datura stramonium) J:, Leaf-spot of jimsonweed produced by inoculation 
with a pure culture of Septoria lycopcrsici from tomato. C, Two spots shown in B enlarged 
to show pyenidia, or spore pustules, of Septoria lycopcrsici. D and E, Leaf-spot of Solatium 
floridanum produced by inoculation with a pure culture of Septoria lycopersici from tomato 
/. Spots shown in I> enlarged t" show pyenidia of >' i>t»ria lycopersici. Only the white 
ostioles are visible, as the pyenidia are embedded in the leaf 
