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 Wetria, 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. 



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