JOURNAL 
OF 
The New York Botanical Garden 
VoL. IV. July, 1903. No. 43. 
ACCOUNT BY PROFESSOR UNDERWOOD OF 
EXPLORATIONS IN JAMAICA. 
Dr. N. L. Britron, Director-in- Chief: 
I present herewith a report on my expedition to Jamaica dur- 
ing the first four months of the present year. I sailed from 
Philadelphia January 15, and returning, reached that port May 
18, taking both voyages with the comfortable ships of the United 
Fruit Company, to whose courtesy we are greatly indebted for 
the free transportation of the numerous packages of specimens 
resulting from the expedition. 
After a few days spent in becoming adapted to the change of 
climate and visiting the gardens at Hope and Castleton, I made 
my headquarters at Cinchona, where the use of the house and 
the adjoining buildings was generously placed at my disposal by 
the local government. Cinchona is located on a spur of the 
Blue Mountain Range, at an elevation of nearly 5,000 feet, and 
proved a most advantageous center for the work undertaken. At 
my first visit three weeks were spent in the mountains with Cin- 
chona as a base, visiting on foot or on mule back, nearly all the 
more favorable localities accessible: Clyde River valley, Mabus 
River valley, Morce’s Gap, Vinegar Hill, Breakfast Spring, Moody’s 
Gap, New Haven Gap, John Crow peak, Old England, Green 
River valley, Portland Gap, and one trip to Blue Mountain Peak, 
the crowning elevation of the range, 7,423 feet above sea level. 
These excursions extended over a range from 2,000 to 7,000 
feet altitude, and included every possible combination of ex- 
posure and slope, so that for the purpose of studying the habits, 
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