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Philippines, Eastern Malaya and Australia, showing that this 
area might have had at some time in the past a considerable 
flora in common, the remains of which are still evident in the 
distribution of such species as Glossogyne tenuifolia Cass., Gna- 
phalium japonicum Thunb., Hpaltes australis Less., Crepis japonica 
Benth., Halorhagis micrantha R. Br., Drosera spp., Lespedeza 
sericea Miq., //ypericum japonicum Thunb., Schoenus apogon RR. & 
S., Diplacrum caricinum R. Br., and other species. 
In selecting the general subject of geographical distribution 
of Philippine plants for the present paper, it was originally 
my intention to consider all the affinities of the Philippine 
flora, so far as they could be determined from study of the 
material and data at present available. The northern or con- 
tinental element, especially in northern Luzon, is very marked, 
but comparatively few of the Himalayan or boreal types found 
there extend farther south than the regional distribution ot 
Pinus insularis Endl., that is the high table land of north- 
central-Luzon. About 200 species, representing northern types, 
are found in this region that for the most part do not extend 
southward into Malaya. Properly to discuss this northern ele- 
ment would necessitate the extention of the present paper to 
a much greater length, and it was finally decided that for the 
present purpose the southern elements in the Philippine flora 
alone should be discussed. It is planned later to complete this 
discussion of the affinities of the flora of the Archipelago, by 
taking up in detail the northern element. 
