THE PHILIPPINE 
JOURNAL OF SCIENCE 
VOL. 16 JUNE, 1920 No. 6 
NOTES ON PHILIPPINE EUPHORBIACEAE, III 
By Elmer D. Merrill ^ 
Director and Botanist, Bureau of Science, Manila \ 
In this series,^ including the present paper, about one hun- 
dred previously undescribed species of Euphorbiaceae have been 
characterized, while a number of others have been considered 
either because of their being new to the Philippine flora or be- 
cause of questions of nomenclature involved. The present paper 
contains the descriptions of thirty-eight presumably new species 
and the records of several others not previously recorded from 
the Philippines. The genera Weti'ia, Megistostigma, and Pluke- 
netia are new to the Archipelago, Megistostigma being of special 
interest, the genus having been previously a monotypic one known 
only from the Malay Archipelago. It is of considerable interest 
to note the continued increase in the number of Philippine 
species in the small or comparatively small genera Blumeoden- 
dron, Trigonostemon, Excoecaria, Omphalea, and Codiaeum. 
PHYLLANTHUS Linnaeus 
PHYLLANTHUS PANAYENSIS sp. nov. 
Frutex dioicus, ramulis exceptis glaber; foliis numerosis, ple- 
rumque lanceolatis, chartaceis, 1.2 ad 3 cm longis, nitidis, basi 
leviter inaequilateralibus, late rotundatis et plus minusve cor- 
datis, sursum angustatis, acutis vel acuminatis, nervis utrinque 
circiter 10, tenuibus; floribus circiter 2.8 mm diametro, perian- 
thii segmentis 6, ellipticis ad oblongo-ellipticis, 1.2 mm longis,. 
^ Notes on Philippine Euphorbiaceae, Philip. Journ. Sci. 7 (1912) Bot. 
379-410; 9 (1914) Bot. 461-493. 
