JOURNAL 
OF 
The New York Botanical Garden 
VoL. XXIV May, 1923 No. 281 
BOTANICAL EXPLORATION OF PORTO RICO AND 
THE VIRGIN ISLANDS 
To THE SCIENTIFIC DIRECTORS OF THE NEW York BOTANICAL 
GARDEN 
m:—As a further contribution continued 
cooperation with the New York Academy of eae Columbia 
January 20th to April oth, 1923, engaged in 
of Sciences. This Academy has published noteworthy 
contributions to the geology and palaeontology of these islands, 
to be followed by fe botany, of which we have the first 
= in press, Sete descriptions of the wild and cultivated 
plants and of their products useful in the sciences and industries, 
is largely completed. I accompanied by Mrs. Britton, wh 
contin studies of mosses and aided in the collection and 
preservation of plants and specimens, a: ed J. Seaver, 
Curator, in charge of our mycological collections, who w Ss 
a guest of t Rico Govern ‘o increase knowledge 
f the fungi. Professor James F. Kemp of vine University, 
nd a member of our Board, joined rst, and while 
diligently occupied in geological eee gave 
attention to the botanical work. 
93 
