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 rootofScorozonorahispanica. 

 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 



