256 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



EXPLANATION OF PLATE VIII 

 Photographed by E. W. Gifford 



Fig. L Opuntia galapageia Hensl., young specimen from Hood Island. X 



ca. .105. 

 Fig. 2. Opuntia galapageia Hensl., partly grown specimen from Hood 



Island. X ca. .033. 



