1652 
genus. As a shade tree for coffee this species is 
second in importance only to the "guava" (/. vera). 
Specimens have been found, in some cases, with nodules 
on the roots. The tree is one of those employed in 
the cacao cultivation of Guadeloupe in making hedges 
or windbreaks which are planted across the direction 
of the prevailing winds at distances of 100 m. (Adapt- 
ed from Cook and Collins, Economic Plants of Porto 
Rico, Contributions from the U. S . National Herbarium, 
vol. 8, p. 167. ) 
Ipomoea carnea (Convolvulaceae ) , 52493. Morning-glory. 
Prom Bangkok, Siam. Collected by Mr. J. F. Rock, ag- 
ricultural explorer. "This large, woody, scandent or 
rambling shrub, which can be grown over trellis work, 
Is one of the largest flowered and handsomest species 
I know. It is covered with pink flowers all the year 
round and is easily grown from cuttings." (Rock.) 
Irvingh mabyana ( Slmaroubaceae ) , 52494. Prom Bang- 
kok, Slam. Collected by Mr. J. F. Rock, agricultural 
explorer. "The seeds are very rich in fat, and an oil 
is extracted from them; they are also eaten roasted 
and remind one of butternuts. The seeds are sold Son 
the market." (Rock.) 
A tree native to Malacca, with thick, elliptic 
leaves, 4 inches long, and small flowers in axillary 
racemes. The large fruit is drupaceous. (Adapted from 
Hooker, Flora of British India, vol. 1, p. 532.) 
Piper 8p. (Plperaceae) , 52572. From Kulara, via 
Cairns, Queensland. Seeds presented by Mr. J. A. 
Hamilton. "Wild pepper, a very ornamental vine, with 
very good fruits; it likes rich alluvial soil and 
plenty of moisture in the growing season. Of course 
it will not stand much frost, but as it is uninjured 
by the few frosty nights here, the plant should thrive 
in Southern California." (Hamilton.) 
Quercus ilex (Fagaceae ) , 52506. Holly oak. From Thrac%, 
Turkey. Seeds presented by Mr. Stephen R. Capps , U.S. 
Geological Survey, through Mr. T. H. Kearney, U. S. 
Department of Agriculture. "An evergreen, live oak, 
desirable as an ornamental and hedge plant, with a 
hollylike, usually crinkly leaf, ranging in shade in 
different individuals from yellow-green to dark green. 
The leaves are very dense, so that the bush looks 
solid, and about like holly leaves in that they are 
prickly enough to discourage animals and children but 
