CANNON 



a. Amaranthus palmeii, Tuinanioc Hill, Aiiji^ust 10, 1909. 

 b Anoda thurberi. Tumamoc Hill, August 10. 190!). 



c. Aster tanacetifolius, Tumamoc Hill, August 2(), 1909. 



d. Aster tanacetifolius showing, at left, root-formation at base of lateral of 

 first order. The figure at right has se.gment of tap-root bearing lateral of first 

 order with its branches. 



