THE PHILIPPINE JOURNAL OF SCIENCE, C. BOTANY. 
Vou. X, No. 3, May, 1915. 
NEW SPECIES OF EUGENIA 
By E. D. MERRILL * 
(From the Botanical Section of the Biological Laboratory, Bureau 
of Science, Manila, P. I.) 
In Robinson’s consideration of the Philippine Myrtaceae?’ 
ninety-eight species of Eugenia were recognized. The most im- 
portant contribution to our knowledge of the Philippine forms, 
published since that date, is a paper by Elmer®*® in which 
thirty species of Hugenia are described as new, while two years 
later eight additional forms were described by him;‘ a very few 
additional forms have also been characterized by the late Dr. 
Robinson and by myself. In but very few cases have I been 
able to match Mr. Elmer’s new species by material secured by 
other collectors, but among the numerous forms characterized 
by him I consider that two or three are not specifically distinct 
from previously described Philippine species, while Hugenia 
binacag Elm. is identical with Hucalyptus naudiniana F. Muell. 
In the present paper twenty-two additional species are described 
as new, bringing the total number of Philippine eugenias up to 
about 160. There is every reason to believe that future botanical 
exploration of the Archipelago will greatly increase the list, as 
botanical collections from little known parts of the Philippines 
consistently present new forms in this genus. 
It is decidedly rare that truly indigenous Philippine species of 
Eugenia can be definitely referred to extra-Philippine forms, 
either by comparison with authentically named material or by 
a critical study of descriptions. With few exceptions the only 
species that can be matched with extra-Philippine material are 
those cultivated forms that are certainly not native to the Phil- 
ippines, but which have been purposely introduced, such as 
Eugenia malaccensis, E. jambos, E. jambolana, E. javanica, and 
E. aquea. It is certainly to be expected that a critical compar- 
ison of Philippine types with the types of species described 
* Assocaite professor of botany, University of the Philippines. 
? Philip. Journ. Sci. 4 (1909) Bot. 331-407. 
* Leafl. Philip. Bot. 4 (1912) 1399-1444. 
“Ibid. 7 (1914) 2343-2358. 
132966——4 207 
