59 



34268. PRUNUS DOMESTICA. Prune. From Rome, Italy. 

 Presented by Dr. Gustav Eisen, of the California Academy of Sci- 

 ences, San Francisco, Cal. Called Prunaringia; grown near Naples. 

 Fruit dark green, averaging about 2^ by li inches, elongate ovoid. 

 Very sweet and highly flavored. When ripe has one or more vertical 

 slits on cheek. Can not stand long shipments, but should prove 

 excellent for canning and preserving. 



37645. PRUNUS GRAYANA. Gray's bird cherry. Presented 

 by the director. Imperial Botanic Gardens, Petrograd, Russia. Small 

 ornamental tree. Native of Japan, 20 to 30 feet high. Closely 

 resembles the European bird cherry (P. padus), but has erect (not 

 drooping) racemes of white flowers about 4 inches long. These appear 

 in June and are followed by the black fruits in August. 



34601. PRUNUS MIRA. Wild Chinese peach. From E. H. 

 Wilson, of Arnold Arboretum. Thirty-foot tree, discovered north of 

 Tachienlu, China, at an altitude of 9,000 feet. Fruit 1 inch in 

 diameter; fuzzy, with smooth stone; edible. Shows tendency to 

 bloom late in the spring; may prove useful for breeding purposes or 

 as stock. Apparently hardy in Massachusetts and in northern 

 Florida. 



28685. PRUNUS MUME. Japanese apricot. From Yoko- 

 hama, Japan. These belong to the Ume class of Japanese plums 

 and are quite different from European and American varieties. The 

 fruit is exceedingly sour, and is largely used in Japan in the form of 

 pickles. The leaves of Perilla arguta are pickled with the fruit and 

 give it a reddish color. 



PRUNUS PROSTRATA. Bush cherry. Native of Turkestan 

 and the Levant. An exceedingly variable shrub ranging from a close 

 stunted bush to a rather free-growing plant 8 feet or more high. 

 Flowers so profusely as to make it of value as an ornamental. The 

 rather small red fruits are sour, but vary greatly in size and flavor. 

 Should be tested for hardiness and as a factor in hybridization work. 



18587. PRUNUS PSEUDOCERASUS. Tanghsi cherry. From 

 F. N. Meyer, Chekiang, China. A distinct species of fruiting cherry, 

 which though not hardy, deserves study by horticulturists; the true 

 Prunus pseudocerasus (a name erroneously applied to the Japanese 

 flowering cherry). Ten days earlier than the earliest variety yet 

 fruited in California. Fruit size of the Early Richmond. Unusually 

 vigorous. May make excellent stock. 



