720 
This variety of kohlrabi thrives especially well in the 
vicinity of Kalgan where occasionally specimens are ob- 
tained weighing up to 25 pounds." (Meyer's introduction.) 
For distribution later. 
Calligonum spp. (Polygonaceae . ) 36536-540. Seeds from 
the Imperial Botanic Garden, St. Petersburg, Russia. Pre- 
sented by Mr. Raphael Zon, Forest Service. Five species 
of this interesting group, some of which may have value as 
sand-binders, for which purpose they are being tried in 
the Trans-Caspian region. For distribution later. 
Capsicum annuum. (Brassicaceae . ) 36774-777. Seeds 
of red peppers from Kalgan, China. Four varieties, some 
of which may prove of value in alkaline soil in semi-arid 
regions. For distribution later. 
Carapa gwianensis . (Mellaceae.) 36715. Seeds of the 
andiroba from Rio de Janeiro. "An Amazonian tree belonging 
to the Meliaceae, used to good effect in the Rio Botanic 
Garden as an avenue tree. It grows to a height of 50 feet 
or thereabouts, and has compound leaves 1| feet in length, 
the individual leaflets 3 or 4 inches long, obtuse, dark 
green in color. The fruits are the size of a baseball, 
russet brown and rough on the exterior, thick-shelled, 
dividing into four sections when ripe and exposing the 
large brown seeds, somewhat similar in shape and appear- 
ance to chestnuts. Should be tried as an ornamental tree 
in southern Florida and southern California." (Dorsett, 
Popenoe and Shamel introduction.) For distribution later. 
Castanea sp: (Fagaceae . ) 36666. Chestnuts from Peking, 
China. "Chinese chestnuts, said to come from the Pang 
Shan region to the northeast of Pekin. This North 
China chestnut has no value as a lumber tree, being of a 
low-branching open-headed growth while the trees do not 
grow tall, specimens over 40 feet in height being rare. 
It seems however much more resistant to the bark fungus 
disease than the American chestnut and it might be util- 
ized in certain hybridization experiments, trying to com- 
bine the good qualities of both the American and the Chi- 
nese parents into one tree. This chestnut loves a well 
drained, decomposed granite soil, preferably at the foot 
of hills or mountains; it also seems quite averse to 
strong winds and thrives best in well sheltered valleys. 
In its native localities it Is but little cultivated, the 
peasants being content to plant a few trees here and there 
along the bases of hills and on sloping fields and the 
trees in general look much thriftier when close to rocks 
and boulders than when seen on fairly level fields. From 
