Smithsonian Report. 1934. — Hitchcock 



PLATE 7 



1. Grasses growing on rocks, the soil accumulating in crevices. A ruigc ui ruck between the quarry and 

 the Inca fort, north of Cuzco. The grooves appear to have been made by the dragging of the stones 

 over the ridge. 



2. A typical mountain bunch grass. Mount Chimborazo, Ecuador, altitude about 15,000 feet. The 

 spaces between the bunches (species of Fesluca) are fully occupied by other plants. Bog with tu.ssock 

 plants in foreground. 



