PI. 244. 



A DROUGHT-RESISTANT PEAR STOCK FROM CHINA. (PYRUS CALLERYANA. SEE S. P. I. NO. 45687.) 



Dwarf wild plants thriving in sterile, decomposed, porphyritic rock on a greatly eroded mountain 

 top in central China. This photograph, compared with the next, shows the widely diilVreiit 

 conditions to which this pear adapts itself. (Photographed bv F. N. Meyer at Nanchaivven, 

 Hupeh, China, March 31, 1917; P13287FS.) 



