DISTRIBUTION, 15 
small to admit of the treatment of the Archipelago as a distinct area. For our present 
purpose, and so far as the evidence from Dalbergia goes, it may conveniently be treated 
as a subarea of Papuasia, though, as a matter of fact, the Archipelago is more or lesa 
of a meeting ground of Papuasian, Malayan, and Indo-Chinese influences. Тһе Papuan 
subareas proper have very few species of Dalbergia. New Guinea itself so far has 
only yielded four species; D. Albertisii, endemic; D. densa, extending throughout the 
Moluccas to the west and to Australia on the south, but not reaching Celebes or the 
Philippines; D. ferruginea, extending throughout the Moluccas and into Timor, Celebes, 
the Philippines, and the Carolines; finally, the widespread littoral species, D. terta, 
The endemic factor for New Guinea being 1, or 95 only, the island cannot, so 
far as Dalbergia is concerned, be considered a natural area apart. In the Moluceas, 
the next subarea to the east, we find five species; again with only one—D. Jalrii, 
confined to the Key Archipelago, — endemic; the others are Р. densa and D. 
ferruginea, mentioned in detail for New Guinea; the widespread D. torta; finally, 
D. parviflora, а species common throughout the Moluccas, but not impossibly only 
an introduction from Malaya, where it is widespread. The endemic factor for the 
Moluccas being $, or 20 only, we cannot consider the Archipelago a distinct area. Тһе 
last subarea to be considered in connection with Papuasia is Celebes. Here only six 
species have been collected so far, and of these none are endemic. The species are: 
as usual, the widespread D. torta; D. Minahassae, which is confined to Celebes and 
ihe Philippines; D. ferruginea, which does not extend to the west of the Wallace line; 
and three species which do extend to Malaya Proper. These are D. discolor, found 
also in Borneo and reported from the Philippines; D. parviflora, which extends from 
the Philippines and the Moluccas to the Malay Peninsula and Sumatra; and D. rostrata, 
which extends from Celebes io Ceylon an4 Southern India: there is thus no endemic 
factor. If all the Papuasian species are brought together, we find that, excluding the 
Philippines, we have nine species, of which four are endemic in the area: if the 
Philippines be added, we have 14 species, of which nine are endemic—a fairly 
definite indication of the advisability of treating all these south-eastern subareas, within 
which the genus is rather poorly represented, as portions of Papuasia. The endemic 
factor for Papuasia, of 1%, or 61:3, exceeds that for China as a whole, but is consider- 
ably lower than that for Central and Eastern China. It is noteworthy that, so far, 
the widespread D. torta has not been reported from any of the islands of the Sunda 
group to the east of the Wallace line; the only species so far reported from these 
islands is D. ferruginea, which occurs in Timor. | 
Malaya Proper, south of Indo-China and west of the Wallace line, is naturally 
divided into the four subareas of Borneo, the Malay Peninsula, Sumatra, and Java. In 
Borneo we find 13 species, of which five are endemic, These are D. falcata, D. Beccati, 
D. Havilandi, D. Hoseana, and D. borneénsis, so that the endemic factor is тт ge 384. 
Of the remaining eight, one is the widespread D. forta; the others, distributed 
beyond Malayan limits, are D, discclor, which goes to Celebes and the Philippines; 
D. parviflora, which is distributed throughout Malaya and passes east as far as the 
Moluccas and the Philippines; D. rostrata, which goes east to Celebes and — to 
Ceylon and Southern India; D, famarindifolia and D, veiutina, both occurring — 
in Malaya and extending to Indo-China, the former also reaching the P hilippines, 
South-Western China and tke Himalaya; the remaining two Bornesn species— D. 
phyllanihoides and D. Scortechinü —are confined to Malaya. In the Malay Peninsula D 
find 13 species, of which threo are endemic. These are D. Ниігіші, D. menoeides, 
