DISTRIBUTION. 93 
nearly twice as many Triptolemeae as any other province. When, however, we consider 
S Podiopetalum, we find that neither Malaya nor Papuasia possesses any Жалы: eti 
India has only one (D. Sissoo); that China has three; and Indo-China has hor In 
this section the species are in every case endemic. 
The section $ Endespermum is in every respect the most widely spread of all the 
sections, for it has one species (D, torta) which occurs in every province, and is 
present in all but two of the sub-subareas that have à sea-coast. Another species extends 
to four of the five provinces; this is D. tamarindifolia, universal in Indo-China and 
Malaya and extending to the Philippines, to South-West China, and ав far as the 
Central Himalaya, A third extends to three of the five provinces; this is D. rostrata, 
almost universal in Malaya and extending to Ceylon and Southern India on the one side, 
to Celebes on the other, Examined by provinces, Eastern China has two, one of them 
endemic; Indo-China east of the Irrawaday has four, one of Шет endemic; Indis 
proper has seven, four of them endemic; South-Western China, Indo-China west of 
the Irrawaday and the Himalaya have between them six, two of these being endemic; 
Malaya has seven, four of them endemic; Papuasia has six, three of them endemic. 
The section Š Miscolobium is chiefly Indo-Chinese—six вресіев, with four of them endemic ; 
Malaya has three, but only one endemic; Eastern China has one, which is endemic; 
South-Western China has also one, which is endemic; India has two, but neither of 
them are endemic; Papuasia has no Miscolobium. Of species of the section § Dalbergaria, 
however, Papuasia, though it has but two, has both endemic; Malaya is in the same 
position; China has six, four of them endemic; India has four, but only one of 
them is endemic; Indo-China west of the Irrawaday, with the Himalaya, kas five, of 
which two are endemic, The focus of this section lies in Indo-China to the east of the 
Irrawaday, where thirteen Dalbergariae (nine of them endemic) are to be met with. The 
facts are shown more compactly in the subjoined table :— 
TABLE III,.—Distribution of the various sections of Dalbergia in South-Eastern Asia. 
| NORTHERN алва.) : CENTRAL AREA. SOUTHERN AREA. 
S.-W. CHINA, 
E. CHINA. C. & E, INDo-CHINA.| W. IxDO0-CBINA, INDIA, MALAYA. PAPUASIA. 
SUBGENUS, SECTION, E. HIMALAY 
et Endemic ahead Endemic ا ا‎ Endemic — Endemic n" Endemic | Ñ — Endemic 
species; factor. | species, | factor, | species, | factor. species, | factor. species, | 188107. | species, | factor. 
i со 
8 Triptolemea ... 8 66 227% 0 4 50 4 50 9 777 5 
isoa .„..{ Podiopetalum 2 50 5 69 5 90 і 100 d 
: ao : 571 7 57 6 to 
AMERIM- { Endespermum 9 50 4 95 6 33 š $53 ; P 
Miscolobium 1 100 6 83 9 0 2 0 ” 
есені Па! ia... 3 | 100 13 69 6 50 4 25 2 100 2 | iw 
When the distribution of individual species is considered, it will be seen, from the 
maps on Рглте 4, that they may be readily divided iato a large class of localised species 
and a smaller class of comparatively widely distributed species. In § Triptolemea, as the 
small maps show, we have 14 of the former class as sgainst 7 of the latter. These 
maps, moreover, show that if we except the littoral species, D. spinosa, which occurs on both 
sides and at the head of the Bay of Bengal and is again reported from the Philippines, all 
the Zriptolemeac of Asia may be arranged in two groups—a northern, including D. Thomsons, 
D. riwosa, D. Cumingiana, D. Millettii, D. mimosoides, and D. stenophylla, extending in 
a narrow belt from the Eastern Himalaya, across North-West Indo-China and Southern 
