HIspANIOLA ia 
by an examination of material in the U. S. National 
Herbarium collected in the northeastern mountains of | 
the island in 1905 by Messrs. G. V. Nash and N. Taylor 
of the New York Botanical Garden,* I have been able 
to make a rough sketch of the vegetation of Haiti. 
The climatic conditions of the island are very similar 
to those of Cuba and Porto Rico, with a luxuriant vege- 
tation on the northern and eastern slopes of the moun- 
tains, due to the moisture laden trade winds which blow _ 
the greater part of the year; and with xerophytic condi- 
tions on the southern and western sides of the island, ee 
like those of similarly situated leeward sides of Cuba, ao 
Porto Rico, and Panama, with their aromatic scrubby 
bushes, their Cactaceae, and aloelike agaves. - Mai 
, 
it is not surprising that species are fo ' 
endemic or peculiar to the island. 
