1778 
leaves. New plants have appeared a hundred feet from 
the old planting." (Close.) 
Prunus majestiea (Amygdalaceae) , 55417 . From Yunnan, 
China. Seeds collected by J. F. Rock, Agricultural 
Explorer of the Bureau of Plant Industry. "(No. 2884. 
Between Puerhfu and Mohel, Yunnan. March 18, 1922.) A 
tree 25 to 30 feet In height with ascending branches, 
growing on exposed dry ridges 6,000 feet or more In 
altitude. The cherries, which are borne In March, are 
oblong to ovold, bright red, with scanty but juicy 
bitter flesh. The tree grows in company with Pyrus 
yunmnensis , P. pashia, Larix sp. , and several other spe- 
cies of Prunus and Malus which are not now in flower . " 
(Rock. ) 
Solarium tuberosum (Solanaceae) , 55406. Potato. From 
Galicia, Austria. Tubers purchased from Messrs. Hein- 
rlch Dotkowski & Son. " 'Petronius . ' This variety is 
fairly vigorous in growth, and the plants are large, 
compact, and healthy with strong erect medium-green 
stems. The leaves are medium to large and rather dark 
green; the flowers are white, and pollen is produced 
rather freely. The tubers are light skinned, the eyes 
medium in number and depth. It is not a very product- 
ive variety, being chiefly valuable for breeding pur- 
poses." (William Stuart.) 
Solanum tuberosum (Solanaceae) , 55456 to 55462 . Potato. 
From Ibarra, Ecuador. Tubers presented by Sr. Jose 
Felix Tamayo . "These varieties of 'chaucha' potatoes 
werei grown near Ibarra, Ecuador, The 'chauchas' (Qui- 
chua: early) are a group of potatoes cultivated In the 
Ecuadorian highlands at elevations between 8,000 and 
12,000 feet. Commercially they are not very important 
due to the fact that they do not keep as well as other 
varieties, but they are much cultivated for home use. 
The tubers are of good size; those of some varieties 
are of good quality .while others are rather inferior. 
The color, both of surface and flesh, is variable. 
"The 'chauchas' mature in about 5 months from the 
time of planting, when cultivated at an elevation of 
12,000 feet: other varieties require 7 to 8 months. 
As soon as the plants come into bloom, the tubers are 
considered to be mature , and are dug for eating. Unlike 
other varieties , which must be dug and then stored for 
a period before resowing,the 'chauchas' can be resown 
immediately after digging. The yield is fairly heavy, 
