IOWA ACADEMY OF SCIENCE 



TAXODIUM DISTICHUM Rich. Bald Cypress. 



Leavt-s small. : _ to % inch long. flat, notched on top. 



Kesin ducts not present. 



Vascular bundles obscure. Xyleni consists of 6 or more small 

 lignified cells, the remainder of bundle composed of a group 

 of small undifferentiated, round cells. At each side of bundle 

 lie 3 to 4 large cells slightly lignified. 



Hypodermal cells not present. 



Epidermal cells not lignified. 



Parenchyma walls corrugated. 



S1 aata on lower surface of leaf. 



State House grounds, Sacramento. California. 



Plate LXIV. 



Figure 1. — Section of leaf of Taxodium distichum showing 

 resin du I 



Figure 1 . — Section of the same showing a leaf not having 

 resin duct. 



Figure 2. — Section through lower epidermis and stoma of 

 leaf of T. distichum. 



Figure 2'. — Section through upper epidermis of same. 



Figure 4. — Section through vascular cylinder and resin duct 

 of leaf of T. distichum, 



