THE PHILIPPINE JOURNAL OF SCIENCE, C. BoTANY. 
Vol. IX, No. 6, November, 1914. 
DILLENIACEAE NOVAE 
By E. D. MERRILL * 
(From the Botanical Section of the Biological Laboratory, 
Bureau of Science, Manila, P. I.) 
The present paper consists of the descriptions of four new 
species of Dillenia and twelve new species of Saurauia, all Phil- 
ippine. In the genus Dillenia a recent collection from Samar 
has enabled me to determine Cuming 1726, collected in that 
Island in the year 1838, specimens of which have been lying in 
various herbaria since 1840 determined only to the genus. It 
is a very striking undescribed species of Dillenia with cauline 
inflorescence, a character at least very unusual in the genus. 
The genus Sawrauia, with the present additions, becomes one 
of the large genera in the Philippines as to the number of 
individual species. As recently as the year 1906 but six species 
of the genus were known from the Archipelago, while at present 
no less than forty are known, with several additional forms 
already collected but represented by inadequate specimens. The 
great increase in the number of known species of Saurawia 
parallels the increase in such genera as Elaeocarpus, Medinilla, 
Eugenia, Psychotria, Ficus, Begonia, Cyathea, Pandanus, Frey- 
cinetia, etc., and in all these genera large additions are to be 
expected as botanical exploration progresses, and as opportunity 
is had to study the material secured by such exploration. 
DILLENIA Linnaeus 
DILLENIA CAULIFLORA sp. nov. 
Arbor circiter 20 m alta, inflorescentiis stipulisque leviter 
villosis exceptis glabra; foliis ellipticis vel oblongo-ellipticis, cir- 
citer 20 cm longis, coriaceis, distincte abrupte acuminatis, basi 
subacutis, nervis utrinque circiter 16, subtus valde prominen- 
tibus; inflorescentiis caulinis, 10 ad 12 cm longis, crassis, parce 
ramosis; floribus albis, circiter 6 cm diametro; staminibus ex- 
terioribus numerosis, circiter 5 mm longis, interioribus paucis, 
quam exterioribus duplo longioribus; carpellis 9. 
* Associate Professor of Botany, University of the Philippines. 
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