
          54433. QUERCUS SERRATA. Seeds presented by John Dunbar, assistant 
superintendent of parks, Rochester, N. Y. An oak, native to Japan and 
Chosen, which has proved hardy in the United States as far north as 
Massachusetts. A very ornamental species whose leaves remain green 
until late in the autumn, when they assume a dull yellow color. The 
tree reaches 80 feet in height, and resembles Castanea crenata.

52396. QUERCUS SOOTEPENSIS. Oak. From Bangkok, Siam. Seeds 
collected by J. F. Rock, Agricultural Explorer. A medium-sized tree 
with narrowly elliptical or oblong ovate leaves. The solitary acorns 
are said to be eaten roasted by the natives. The species occurs in 
Chiengmai and Sootep, in rather open jungle at altitudes of 2,500 to 
3,000 feet. Introduced for trial in the warmest parts of this country.

52397. QUERCUS THOMPSONI. Oak. From Bangkok, Siam. Seeds collected 
by J. F. Rock, Agricultural Explorer. This oak, which reaches 
a height of 80 feet, is valued for its flat, thin shelled, sweet-flavored 
acorns, which are eaten roasted. The timber is valued for fuel. 
The tree is rather adaptable as to its soil requirements and should 
be tested widely in California and Florida.

52391. QUERCUS TRUNCATA. Oak. From Bangkok, Siam. Seeds collected 
by J. F. Rock, Agricultural Explorer. This oak, which thrives 
in the deciduous forests of northern Siam in quartz-sand soil, yields 
immense crops of thick-shelled, edible acorns about an inch long and 
not quite an inch thick. The acorns are borne in dense spikes which 
sometimes grow together in a fan- shaped mass. The entire spikes, still 
bearing their nuts, fall when the nuts are mature, and literally cover 
the ground. The roasted nuts are eaten by the natives.

49386. RANDIA ACULEATA. From Alta Verapaz, Guatemala. Seeds collected 
by Wilson Popenoe, Agricultural Explorer. This is an attractive 
shrub which, because of its formal appearance and symmetrical shape 
should prove of value for hedges. It strongly resembles the box-tree 
in general appearance. The fruits, which are white when ripe, round, 
and about half an inch in diameter, increase the ornamental appearance 
of the plants. It should be tested in southern Florida and southern 
California.

54118. ROSA CAUDATA. Rose. Originally from western China. Seeds 
collected at the Arnold Arboretum. A tall, vigorous shrub with 
stout, arching stems, dark-green foliage, and red flowers about 2 inches 
across. To plant breeders who are working with this genus, this plant 
should prove of interest.

50681. RUBUS sp. Blackberry. From San Jose, Costa Rica. Seeds collected 
by Wilson Popenoe, Agricultural Explorer. A wild blackberry of 
the Costa Rican highlands, where it forms half-trailing masses 6 or 8 
feet above the ground, and yields an abundance of dark- purple fruits 
an inch long, resembling in appearance and flavor the cultivated blackberries 
of the United States. The species is probably not very frost 
resistant, and should be tested in mild-wintered sections of the South.

-26- 
        