1672 
Dioseorea sp. (Dioscoreaceae ) , 53006. Yam. Prom 
Mayaguez, Porto Rico. Tubers presented by Mr. T. B. 
McClelland, horticulturist, Agricultural Experiment 
Station. "'Guinea yam.' A white-fleshed yam of excel- 
lent quality, and one of the most popular varieties 
grown in Porto Rico. The tubers are usually cylindri- 
cal, and commonly weigh 'from 3 to 6 pounds each at 
maturity. This yam is distinctive in vegetative char- 
acters in that the vine bears short recurved spines 
and that the form of the leaves on the older portions 
is modified." (R. A. Young.) 
Diospyros conzatti ( Diospyraceae), 53176. Persimmon. 
Prom Cerro Espino, Oaxaca, Mexico. Seeds presented by 
Mr. P. C. Standley, U. S. National Museum. "'Zapote 
negro montes,' collected at Cerro Espino, April, 1921, 
by Prof. C. Conzatti. The fruit is said to be better 
than that of Diospyros ebenaster." (Standley.) 
A tree of particular interest on account of the 
exquisite flavor of its edible fruit, 2 inches in di- 
ameter and 1 inch long. In quality it is comparable 
with the ' chico-zapote ' {Aehras zapota) . It is green 
skinned, and much smaller than the common black 
sapote (D. ebenaster). Propagation of this magnificent 
tree is relatively simple on account of its vigor and 
the altitude at which it thrives, 4,000 feet above 
sea level. (Adapted from Boletln de la Direccion de 
Estudios Biologicos, vol. 2, no. 3, p. 316.) 
Eueryphia eordifolia (Eucryphiaceae ) , 52589. Prom 
Santiago, Chile. Seeds presented by Mr. F. Albert, 
consulting forester, Forestry Department, through 
U. S. Forest Service. "Muermo." An ornamental, and 
also useful, Chilean tree which attains a height of 
about 15 feet, with thick, leathery, shining leaves 
and aromatic, white flowers which appear in the spring 
and make the tree a beautiful sight. Because of the 
abundance of nectar, this tree is a favorite with 
bees. The bark, rich in tannin, is utilized in dyeing 
and also in medicine. (Adapted from Castillo and Dey, 
Jeografla Vejetal del Rio Valdivia, p. 81.) 
Euonymus hamiltonianus (Celastraceae ) , 53699. From 
Kew, England. Seeds presented by Sir David Prain, di- 
rector, Royal Botanic Garden. A large shrub,- under 
favorable circumstances a moderate-sized tree, 30 to 
35 feet high, with a short straight trunk 4 to 5 feet 
in girth. The clusters of 15 to 30 greenish white 
