1988 
which to graft other varieties. It will be noted that the seeds, not 
scions, are introduced; there is no assurance that the fruit produced 
by seedlings will agree with the above description, but we infer that 
this is a semi-wild form, not a highly improved one, and that seedlings 
will in consequence bear fruit more closely resembling that of the parent 
than is usual in cultivated North American apricots. 
PRUNUS spp. (Amygdalaceae) . Cherry. Prom Yunnan, China. Seeds 
collected by J. F. Rock, Collaborator of the Bureau of Plant Industry. 
Among Mr. Socle's recent' collections in Yunnan, the following two 
cherries stand out as of particular interest. They both have red flow- 
ers, and come from an elevation which indicates that they may prove 
sufficiently hardy for cultivation in the northern United States. 
Prunus tomentota, which stands the winters of North Dakota, occurs in the 
same region. 
58832. PRUNUS sp. "(No. 11221. Champutong. October, 1923.) 
A red-flowered tree 15 feet high, from an altitude of about 13,000 
feet in the Sal win Valley. The fruits are ovoid and red. "(Rock.) 
. 58833. prunus sp, "(No. 11237. Mount Kenichunpu. October, 
1923.) A dwarf cherry which grows as a shrub 4 feet high at an alti- 
tude of about 13,000 feet on the Salwin-Irrawaddy Divide, Tibetan 
Border. It has oval, serrate leaveSj red flowers, and ovoid black 
fruits." (Rock.) 
pyrus spp". (Malaceae.) Pear. From Yunnan, China. Seeds collect- 
ed by J. F. Rock, Collaborator of the Bureau of Plant Industry. 
Last season this Office distributed an extensive series of wild 
pears,- collected by Agricultural Explorer Rock, who has since January, 
1923, been conducting his work under the auspioes of the National Geo- 
graphic Society of Washington, D. C. Mr. Rock sends in two additional 
species, as yet undetermined botanically, which he thinks may be valu- 
able as stock-plants on which to graft cultivated pears. Since these 
species gome from 10,000 feet elevation, they are not likely to prove 
hardy in the northern United States, though an actual test will be re- 
quired before it can be ascertained just how much cold they will toler- 
ate. 
58834. PYRUS sp. "(No. 11480. November, 1925.) A tree 20 feet 
high, found along stream, beds at the foot of and cn the slopes of the 
Likiang Snow Range at about 10,000 feet altitude. It is a handsome 
species, with large crenate leaves white~ tomentose beneath, white 
flowers, and yellowish red fruits the size of a cherry*" (Rock.) 
58835. pyrus sp. "(No. 11492. Lautchunshan. November, 1923.) 
A handsome tree about 25feet high, with leaves white-hairy beneath, 
and oorymbs of red fruits. It grows at an altitude of about 10,000 
feet." (Rock.) 
