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THE PHILIPPINE 
JOURNAL OF SCIENCE 
C. BOTANY 
Vou. V MAY, 1910 No. 1 
AN ENUMERATION OF PHILIPPINE LEGUMINOSAE, WITH 
KEYS TO THE GENERA AND SPECIES. 
By E. D. MERRILL. 
(From the Botanical Section of the Biological Laboratory, Bureau of Science, 
Manila, P. I.) 
This family ranks second or third in number of species among those 
represented in the Philippines, being definitely exceeded only by the 
Orchidaceae. It seems probable, when our material of the Rubiaceae is 
carefully revised, that the latter family will somewhat exceed Legumi- 
nosae in the number of species found in the Archipelago. A rough 
estimate of the former, based on the classified and unclassified material 
available here, brings the number of species approximately to the same 
figure as Leguminosae, but novelties are much more numerous in Rubia- 
ceae than in Leguminosae, and the species appear to be more local. The 
introduced element in Leguminosae is comparatively large, but in Rubia- 
ceae there are relatively few introduced forms. 
An attempt has been made in the following enumeration to account 
for all the genera and species of the family that have been credited to 
the Philippines in botanical literature; to determine, so far as possible, 
those which really extend to the Archipelago, excluding the forms 
erroneously credited to the group by various authors, and to classify the 
abundant material accumulated in the herbarium of this Bureau. during 
the past few years, describing the apparently new forms. 
The material available for study comprises a complete set of all the 
collections made by employees of this Bureau, and the Bureau of Forestry, 
as well as numerous other collections of recent date, some of Cuming’s 
Philippine plants, and occasional specimens collected by Mr. Loher. 
Opportunity has occurred, previous to the inception of this work, of ex- 
amining the Philippine material collected by Cuming, Vidal, Loher, and 
others, preserved in the Kew Herbarium, as well as various Philippine 
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