IOWA ACADEMY OF SCIENCE 



TAXUS FLOMDANA Chapm. Yew. 

 Leaves broad and flat. 3 4 to 1 inch long. 

 Resin duets none. 



Vascular bundles large, not surrounded by a sheath but by a 

 mass of loosely joined cells. Xylem in narrow band, lignified 

 cells present in pith at each side of xylem. 



Hypodermal cells not present. 



Cells of epidermis flattened, smaller than in Taxus b re vi folia. 

 heavily eutinized. cutin deeply mammillated on lower surface ; 

 guard cells lignified. 



Palisade parenchyma deep, composed of long narrow ceils. 



Material from State House grounds. Sacramento. California. 



Plate LXVIII. 

 Upper figure. — Section of leaf of Taxus floridana. 



Figure 2. — Section through upper epidermis and palisade 

 parenchyma of leaf of T. floridana. 



Figure 2'. — Section through lower epidermis of leaf of T. 

 floridana. 



Lower figure. — Section through vascular cylinder of leaf of T. 

 tana. 



