1914] 



HILL— ANATOMY OF LY CO PODIUM 



73 



and phloem was evident in the model; the branching of the 

 xylem was often followed by branching of the phloem groups 



and xylem fusions 



oem 



Frequently the peripheral 



Fig. 16.— L. varium: photographs of the clay models of the stele; the base is 



portion 



leaf traces which pass out indiscriminately from the stele; /, leaf trace. 



phloem 



sometimes phloem seemed 



xylem 



was indented. 



