PLANT TISSUES 
III 
Laticiferous vessels are long simple or branching tubes, which owe 
their origin to chains of superimposed cells whose transverse walls 
Pig. 48—Laticiferous vessels from'the^cortex of root of Scorozonora hispanica, 
A, As seen under low power, and B, a smaller portion under high power. ( Stevens 
after Sachs.) 
have early become absorbed, the lumina of the cells then becoming 
filled with latex. They are found in various parts of roots, stems, 
and leaves. When branched the branches connect with those of 
