I04 Dr. W. C. Williamson on 



sides the leaf-traces, larger solid tracheal bundles are given 

 off as segments from the primary tracheal cylinder. These 

 appear to be Halonial fructigerous bundles. 



Axial Structures. 

 Medulla. Young State. 

 Iransverse. 



L.— Fig. 9a, C.N. 379. 



Matured. 



B.— p. 20s, Fig 13a. 

 L.— p. 289, Fig. 9a, C.N. 379. 

 Fig. loa, C.N. 384. 



Veriual. 



B.— p. 205, Fig. 14. See C.N. 1592 E. and 1643. 



Primary Tracheal Cylinder. 

 Transverse. 

 Young State. 

 L.-p. 288, Fig. 9, C.N. 379. 



Mature State. 



L.— p, 289, Fig. 10, C.N. 384. See also 1648 and 9. 



Vertical. 



B. — p. 206, Fig. 14c. See 1643 and 4. 

 BB.— 11. 18, Fig. 25, C.N. 396. 



Secondary Xylem Strand. 

 Transverse. 



L.— p. 289, Fig. II, C.N. 387. 

 See also C.N. 1592 A and 1648-9. 



Vertical. 



C.N. 1592B, C, D, and E, not yet figured. 



Cortex. 



Innerviost Zone. Transverse. 

 B.— p. 205, Fig. 13d. 



L.— p. 289, Fig. iob,b',b", C.N. 384. Fig. iib,b',b", C.N. 384. See 

 also 1 592 A. 



Vertical. 



B. — Fig. 14 (but not minutely described). See C.N. 1592 C and E. 

 BB.-p. 18, Fig. 25, C.N. 396. 



Middle Zone. 

 Transverse. 



B.— P^ig. I3h. 



L.— p. 289, Fig. 10 (upper half), C.N. 384. Fig. 9d, C.N. 379. See 

 also C.N. 1643-4. 



