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ultimate branches covered with buds, but none expanded before 
we came away ; I carried a branch along hoping to see a flower 
expand, but the buds wilted. I hope to secure flowers and fruit 
later, however, our guide being instructed to pick them and 
preserve them in a jar of formalin solution left with him for that 
purpose. : 
In all, thirteen species of cactuses were seen in the Guantanamo 
Valley and on the hills, and cuttings or plants of all of them 
were collected and shipped to the Garden; the coastal hillsides 
Fic. 20. Cereus Hystrix, Guantanamo Bay, Cuba. 
are veritable cactus deserts in places, and the rainfall is evidently 
very little. Cereus Hystrix, a columnar species with upright 
branches, reaches 35 feet in height, and is sometimes so scattered 
in the landscape as to form natural cactus parks. These coastal 
hillsides also harbor quantities of the Cuban melon cactus, and a 
' large number of small trees and shrubs not found farther inland. 
The maguey or century plant found on the hillsides of San- 
tiago harbor grows here also abundantly, as well as another 
