New P a- Ir-'cd jc^'r-s, 19^c-17, PLATE XVII. 



A Wild Chinese Grapevine (Vitis davidii\ 



A species sometimes cultivated in the warm, moist climate of the Yangtze Valley for its small, sour 

 berries, which make excellent jelly. Its leaves and shoots are covered with weak prickles, and 

 the plant appears to be peculiarlv free from disease. Promising for hybridization. Photo- 

 graphed (P569FS-C) at the Chico Field Station, September, 1915. 



