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the next cut (Fig. 4), representing the Judas-tree or Red- 

 bud leaf, you see a different venation. 



10. At the base of the blade the petiole seems to divide 

 all at once into five large veins, each running through, one 

 to the apex, and four to the margin. In this case the vein 

 ing (that is, the venation) is compared to the division of the 

 hand (or palm of the hand) into fingers, and so named pal- 



Fig. 4 o. Leaf of Sweet-gum (Liquidambar). 



mate venation. Therefore, you may say that the palmate- 

 venation consists of about five veins starting together at the 

 base of the blade, each one branching into veinlets and 

 veinulets. Fig. 4 a is a lobed leaf of the Liquidambar tree 



9. Note the parts of this Willow leaf. Point out its midvein. Its veinleta 

 veinulets. 



10. Define the palmate venation What are the veins t 



