
          plant until the following spring. This is a fairly hardy, useful hedge 
plant which remains dwarf without pruning.

9662. BIGNONIA CHAMBERLAYNII. From Funchal, Madeira. Received 
through Barbour Lathrop and David Fairchild. A beautiful tropical 
climber, which produces clusters of tubular, bright-yellow flowers. 
Suitable for walls and trellises in southern California and southern 
Florida.

56294. BUDDLEIA FORRESTII. From China. Collected by J. F. Rock, 
Agricultural Explorer. This very attractive ornamental shrub is found 
on the pure limestone soils of the Likiang Snow Range at altitudes of 
about 10,000 feet. The foliage is covered with a dense coat of heavy 
white wool which forms a pleasing contrast to the spikes of lavender-
blue flowers.

55077. BUDDLEIA JAPONICA. From Japan. Presented by Vilmorin-
Andrieux & Co., Paris, France. This deciduous shrub, 3 to 5 feet high 
with long spikes of pale-lilac flowers, is a handsome ornamental.

51405. BYRSONIMA SPICATA. Nance. From Guatemala. Collected by 
Wilson Popenoe, Agricultural Explorer. In Guatemala this species makes 
a small tree, with yellow flowers in clusters, followed by red and yellow 
fruits as large as cherries. In Florida it has shown itself an excellent 
hedge shrub, its growth being less vigorous in that state than 
in its native home. The fruits are edible, but are not of much value.

51503. CALLISTEMON CITRINA. Bottle-brush. From Kenya Colony, Africa.  Collected by Dr. H. L. Shantz, Agricultural Explorer. A small 
tree of the myrtle family, common in some of the central African provinces. 
The showy clusters of scarlet stamens render the tree very 
attractive when in flower. It is suggested for trial in California 
and Florida.

46313. CANNA EDULIS. Queensland Arrowroot. Presented by J. M. Westgate, Hawaii Agricultural Experiment Station, Honolulu. A close relative 
of the ornamental cannas, cultivated for its edible tubers, which 
contain a large percentage of starch. The plant is very vigorous and 
often becomes 8 or 9 feet high, with handsome bronze-green leaves and 
scarlet flowers. When properly cooked the tubers are very palatable; 
according to F. G. Krauss, of the Hawaii Agricultural Experiment Station, 
they should be boiled for thirty minutes and then mashed like 
boiled potatoes. Prepared thus they are comparable in taste with 
potatoes, and in Hawaii the yield is over twice as great. As much as 
sixty pounds of tubers have been obtained from a single hill. The tops 
can be used as forage for cattle and swine.

It is as a commercial source of starch, however, that the Queensland 
arrowroot is most promising. In Australia it is grown for this 
purpose in preference to the Bermuda arrowroot (Maranta arundinacea), 
because of its much higher yield. A deep, rich, well-drained soil 
and moderate rainfall are necessary for the successful cultivation of 
this plant. In the United States it will probably have to be grown 
as an annual, except in the warmest parts of Florida.

-9- 
        