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geographic relationships of Sumatra and the Philippines, it 
would be expected that any species found in both, would also 
be found in the intervening island, Borneo. 
Java shows a very decided relationship floristically with 
the Philippines, but here it is probable that our relatively 
great knowledge of the flora’s of both plays a decided part, 
and the number of species confined to the two is doubtless 
more apparent than real. The flora of Java and of the Philip- 
pines is now better known than is that of any other of the 
larger islands of the Malay Archipelago, so that future explo- 
ration of Borneo, and of the islands east of Java and south 
of the Philippines is certain greatly to modify the following list. | 
Already it is known that a few species are at present recorded 
only from Java, Celebes and the Phillippines, while still more are 
recorded trom Java, Borneo and the Philippines, showing two 
probable lines of migration. It is only reasonable to expect that 
eventually most, or all the species enumerated below, will be 
found in intervening islands. The following species are at present 
known only from Java and the Philippines; Trichomanes saxifra- 
goides Presl, Antrophyum parvulum Bl., Elaphoglossum callaefolium 
Moore, Polypodium caespitosum Mett., P. neglectum Bl., Stenochlaena 
leptocarpa Und., Isachne pangerangensis Z. & M. (represented in 
Mindoro by a variety), Pancium caudiglume Hack., Aphyllorchis 
pallida Bl., Leucosyke candidissima Wedd., Andrachne australis 
Z. & M., Platea latifolia Bl., Ventilago oblongifolia BI., Tarrietia 
javanica Bl., Mastixzia pentandra Bl., Jasminum crassifolium BI. 
Cotylanthera tenuis Bl., Ardisia marginata Bl., Amaracarpus pu- 
bescens B)., Tournefortia Horsfieldii Miq., Gynostemma simplicifoha 
Bl., and Trichosanthes villosa Bl. The genus Creochiton has three 
species, two in Java and one in Mindanao. 
From Java, Celebes and the Philippines we have Litosanthes 
biflora Bl,, and from Java, Borneo and the Philippines Oleandra 
colubrina Copel., Ophioglossum intermedium Hook., [sachne Be- 
necket Hack., Habenaria angustifolia 0.K., and Myrica javanica 
BL, some indication that the Javan element has reached the 
Philippines trough these islands. 
