FLORA OF THE CAPE REGION. 223 



appear in June or July, and the large pods remain pend- 

 ent on the tree the entire year, their size and abundance 

 making it a conspicuous one of this region. Through 

 the kindness of Dr. J. N. Rose I have been able to see 

 specimens of a tree collected by Dr. Palmer at Manza- 

 nillo that may be the same as the Cape Region plant, but 

 flowers were not collected, and in consequence there is 

 not absolute certainty in the identification. 



The genus Albizzia has been supposed to be confined 

 to the warm regions of Asia, Africa and Australia, so that 

 an indigenous species in Mexico was not to be expected. 



687. Rhus Toxicodendron L. ? — Growing in the 

 manner of variety radicans, but the color and appearance 

 of the leaves are peculiar. Only a few immature flowers 

 were found. Summits of the mountains. 



688. PiTHECoLOBiuM Mexicanum Rosc. — "Palo 

 Chino." The wood is used for making tables and chairs. 

 La Palma, Agua Caliente. 



689. CoNOCARPUS ERECTA Jacq. — Grows along the 

 southern shore. 



690. Lythrum alatum Pursh. — Sierra de San Fran- 

 cisquito and along the Rio San Jose. 



691. Opuntia prolifera Engelm. — The fruit pro- 

 duces quantities of seed, but the general appearance of 

 the plants is the same as when growing about San Diego. 



246. Cereus. — An undetermined species that bears 

 light-scarlet flowers. 



249. Cereus Thurberi Engelm. — Along the coast 

 between San Jose and Cabo San Lucas a form of this 

 species grows that is smaller and has a darker appearance 

 than usual. The people of the region insist that it is a 

 different species, that the fruit opens in a different man- 

 ner, is smaller and has a different flavor; but there seems 

 to be no difference in the spines and flowers. 



