Wild Rugged Mountain Country in Kansu Province, China. 
On the steep rocky slopes of this region at eleva- 
tions of over 4000 feet Potanin's drought resistant wild 
peach (Prunus persica potanini, S. P. I. Nos. 39899, 40007, 
40008, 40009) occurs in company with Loniceras, Philadelphus 
spp. , Viburnums, Hippophae salicifolia , etc. Photograph No. 
13092, by Frank N. Meyer, near Pao dji, China, Nov. 9, 
1914. 
