CONDUCTING TISSUES 



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PLATE 46. Conducting Tissue. 



1. Sieve tubes. (Longitudinal view. D =duct. C = sieve-plate.) 2. Sieve 

 tubes. (Transverse view. D =duct. C =sieve-plate). 3. Latex tubes (J), Tar- 

 axacum root, longitudinal view. 4. Porous parenchyma, Peppermint stem pith. 



