LLOYD. 



PLATE 2. 



1. The Ocotillo, Fouquieria splendens, in leaf and flower, on Tumamoc Hill, April, 1906. 



2. Young, rapidly growing shoot of Fouquieria splendens, bearing primary leaves. The developing 



spines are seen to be formed within the dorsal part of the petioles. On the right, near the 

 base of the shoot, is a leaf-blade withered and partially separated from the spine. 



3. Shoot of Fouquieria splendens clothed with primary leaves, secondary leaves, and terminating 



in a new growth. 



