1470 
gum which, exudes from wounds in the bark [and is also 
said to exude naturally from the roots and lower part 
of the trunk]. Some of the trees in the Brazilian 
forest are 6 feet in diameter above the buttresses 
and are estimated to be more than 1,000 years old. 
These trees produce large quantities of gum during 
their lifetime and the spot in which one has stood 
often yields 5 to 10 barrels of the best gum, which is 
used in the manufacture of varnishes. (Adapted from 
Bulletin of the Pan-American Union, October, 1916.) 
Ipomoea cairiea ( Convolvulace^.e ) , 47532. Morning-glory. 
From Zamboanga, P. I. Seeds presented by Mr. P. J. 
Wester, agricultural advisor. "Seeds of a white- 
flowered variety of /. cairiea, extremely attractive and 
floriferous. Unlike most plants of this f ami ly , /. cairiea 
is ever-blooming. The mauve-colored variety is the 
most popular climber in tbe Philippines and very rarely 
seeds, being propagated by cuttings. The plant from 
which these seeds were obtained is the only one with 
white flowers I have seen." (Wester.) 
Jvbaea chilensis (Phoenicaceae ) , 47578. Palm. From 
Miami, Fla. Plants grown at the Plant Introduction 
Field Station at Miami. "This is the palm from which 
the palm honey of Chile is made. This syrup is the 
most delicious I have ever tasted. It is superior, 
in my estimation, to maple syrup, being milder, and not 
cloying the palate as the latter does. In forty years 
the trees will be ready to tap for the sap from which 
this syrup is made. It is a very ornamental palm but a 
slow grower. It thrives on poor, very dry soils and 
requires very little water. Hitherto palms have been 
felled but they can be tapped, I am assured, just as 
maple trees are tapped." (Fairchild.) 
Kokia rockii (Malvaceae), 47561. From Honolulu, 
Hawaii. Presented by Mr. J. F. Rock. "Seeds of a 
new variety of K.roekii, from the island of Kauai, dis- 
covered by Mr. A. Knudsen. There is only one specimen 
of the tree; it grows in the very dry region of Kauai, 
several miles from Mana, in Koaloha canyon, - on the 
edge of a cliff, which saved it from destruction by 
cattle. I think the discovery of this form is one of 
the most noteworthy since the days of Hillebrand." 
(Rock. ) 
ly coper sicon eseulentum ( Solaraceae ) , 47526. Tomato. 
From Naples, Italy. Presented by the Museo Commerciale 
