318 The Philippine Journal of Science ms 
studying them critically or comparing them with Philippine material. 
Koorders states that the Celebes plant is a climber, attaining a height of 
10 meters; the Javan Aralia ferox Miq. is an erect shrub. Thus we have 
another characteristic species added to the already long list of Philippine- 
Celebes forms, the list of genera and species having this special and 
restricted distribution being increased as collections from the two regions 
are studied and compared. It is now thoroughly established that the 
Celebes and Moluccan floras are distinctly more closely allied to the flora 
of the Philippines than is that of any other region, indicating clearly that 
land connections undoubtedly existed in previous geologic times between 
the Philippines and the islands to the south and southeast. 
The species affords an excellent illustration of one marked line of dis- 
tribution of species within the Philippines, and that is the extension of the 
Mindanao flora to the north, through Leyte, Samar, and along the eastern 
parts of Luzon. This distribution is probably limited by certain climatic 
conditions, chiefly the seasonal distribution of the rainfall throughout the 
year. Many parts of Mindanao have no sharply defined dry season, and 
the geographic distribution of the species characteristic of such regions to 
the north is limited to those regions having a similar seasonal distribution 
of the rainfall, such as Samar, Leyte, Catanduanes, and the eastern parts 
of Luzon generally. The San Antonio region in Luzon is a region that is 
continually wet, due to its proximity to the east coast range of mountains. 
BOERLAGIODEN DRON Harms 
BOERLAGIODENDRON CATAN DUAN ENSE sp. nov. 
Frutex circiter 1 m altus, inflorescentiis exceptis glaber ; foliis 
longe petiolatis, palmatim 7-foliolatis, foliolis longe petiolulatis, 
usque ad 20 cm longis, grosse lyrato-lobatis, utrinque acuminatis ; 
inflorescentiis parcissime furfuraceis, radiis primariis circiter 
10, dichotomis; floribus capitatis, sessilibus, 4-meris; fructibus 
ovoideis, 4-sulcatis vel 4-angulatis, 7 mm longis. 
A shrub about 1 m high, entirely glabrous except the sparingly 
furfuraceous inflorescences. Ultimate branches pale-grayish, 
about 1 cm in diameter. Leaves palmately 7-foliolate, leaflets 
olivaceous, shining, 15 to 20 cm long, chartaceous to subcoria- 
ceous, in general lanceolate, coarsely and irregularly lyrately 
lobed, the lobes few, the larger ones broadly ovate to oblong- 
ovate, 2 to 3 cm long, apex and base acuminate, the apex slen- 
derly so; petiolules mostly 3 to 4 cm long; petioles about 25 
cm long, the basal crests few, short, coriaceous, recurved, not 
at all pectinate. Inflorescences sparingly furfuraceous, the 
primary branches about 10, these about 2 cm in length, each 
bearing two branches as long as the primary ones, these sub- 
tended by broadly ovate bracts 5 mm in length or less, the se- 
condary branches with a pair of similar but smaller bracts at 
about their middle ; each primary branch bears between the two 
secondary ones a sessile or shortly peduncled group of sterile 
