278 
1884 is the introductory portion to a.paper of systematic 
nature by the present author’) in which but two affinities 
were considered, the floristic relationships between the Philip- 
pines and Celebes, and the northern element in the Philippine 
flora. In the former Roxre’s list of three species known only 
from the Phillippines and Celebes was increased to about fifty- 
five, while the additions to the list of northern distribution 
were nearly as striking. In both cases however, so many ad- 
ditional data have been secured in the past three years, that 
both lists are now in need of revision. 
Since the year 1884 not only has a great deal of work 
been done on the Philippine flora, but some of the surroun- 
ding regions have been thoroughly investigated botanically, 
and this work has been of the greatest value in determining 
the range of species that are also found in the Phillippines. 
Thanks to the work of Hxmsziey and his collaborators, what 
is now known of the flora of China has been made available ’), 
and this has been supplemented by the more recent publica- 
tions of Marsumura and Hayata®) and Hayara‘) on the flora 
of Formosa. ; 
In the year 1898 Koorpgrs published his compilation of 
the flora of Celebes*), which, although very incomplete, has 
been of great value in compiling the list of species known 
only from that island and the Philippines. Additional data 
have been secured from Borriacr’s ,,Handleiding tot de Kennis 
der Flora van Nederlandsch Indié” (1890—1900), the valuable 
“Materials for a Flora of the Malayan Peninsula” by Kine and 
GamBLe, published in the Journal of the Asiatic Society of 
1) New or noteworthy Philippine Plants, V. Philip. Journ. of Sc. I (1906) Suppl. 
169—242. 
2) An enumeration of all the plants known from China proper, Formosa, Hainan, 
Corea, the Luchu Archipalago and the Island of Hongkong, together with their 
distribution and synonymy; Journ. Linn. Soc. Bot. XXIII, XXIV, XXX VI (4886—1905). 
3) Enumeratio Plantarum in Insula Formosa ‘sponte crescentium. Journ. Coll. Sci. 
Tokyo XXII (1906) 4—702. 
4) Flora Montana Formosae. L c. XXV, part 19 (1908) 1—260. 
5) Verslag eener Botanische Dienstreis door de Minahasa, tevens eerste overzicht 
der Flora van N, 0. Celebes, Meded. ’s Lands Plantentuin, XIX, (1908) XXVI + 716. 
