28 CAVE AND CLIFF DWELLERS. 
radiating' from a central point like a 
bouquet of bayonets, and each rod hold¬ 
ing hundreds of spikes throughout its 
OQUETILLA CACTUS. 
length. You will thus have a faint idea 
of the appearance of a bunch of oquetilla 
cactus. These bunches seem to prefer 
growing along the rocky crests in rows 
of tolerable regularity that, to a person 
at a distance, suggest the work of human 
hands. 
