370 
MERRILL. 
Guinea, will prove that the endemism is nearly as great in all these 
regions as it is in the Philippines. 
Rhododendron. Vaccinium. 
Borneo 
Total. 
20 
Endemic. 
16 
Total. 
8 
Endemic. 
5 
Java 
8 
1 
11 
4 
Malay Peninsula 
8 
4 
10 
4 
Sumatra 
11 
3 
4 
0 
Celebes 
3 
1 
4 
0 
New Guinea 
19 
19 
9 
9 
China 
135 
125 
16 
13 
Formosa 
6 
3 
3 
2 
Philippines 
10 
16 
19 
18 
Of the Philippine species, Gaultheria cumingiana has been found in 
Formosa, and G. borneensis in Luzon, Borneo and apparently also in 
Formosa. Vaccinium micro phyllum Bl. is found in Celebes, Ternate, 
and probably also in Borneo and the Malay Peninsula, although its 
exact distribution is a matter of some doubt. The remaining species are 
mostly local in distribution, but some, notably Vaccinium villarianum, 
Rhododendron quadrasianum, and R. Tcochii are found on most, if not 
all high mountains from northern Luzon to southern Mindanao, thus 
supplying some evidence as to the homogeneity of the Archipelago. 
The presence of these numerous species of Ericacece on the mountains 
of the Philippines, indicates the subtemperate nature of the vegetation 
of the higher peaks, a character of the higher mountains of the entire 
Malayan region. 
Several genera of the family are found in Formosa, southern China, 
the Malay Peninsula and in Borneo that have not as yet been found in the 
Philippines, and some of these, especially Agapetes, may be expected to 
be found later in the Archipelago. 
KEY TO TI-IE GENERA. 
Ovary inferior; fruit a berry 1. Vaccinium 
Ovary superior ; fruit a capsule. 
Capsule 5-valved, loculicidal; calyx surrounding the capsule and succulent in 
fruit ; flowers small ; plants usually aromatic. 
Anthers with two horns at the apex 2. Gaultheria 
Anthers not horned at the apex 3. Diplycosia 
Capsule septicidal; calyx not enlarged and succulent in fruit; anthers dehiscing 
by pores ; flowers medium or large 4. Rhododendron 
