1232 : LEAFLETS OF PHILIPPINE BOTANY [Vor. IV, Arr. 67 
entrance to Apo, the number could easily be augmented to sixty 
or more species. 
All species of Ficus require a good deal of moisture rather 
than good soil, yet in somewhat sheltered places where these 
two conditions are combined we find monstrous trees developed. 
The finest and largest tree species I ever saw inhabits the vast 
mount Apo forested basin at 4000 feet. This particular species 
is F. apoensis Elm. and has a trunk perfectly round and straight, 
five feet through and seventy five feet to its first limbs! 
In all localities at middle elevations, the bulk of our species 
are found along water courses, a number of them inhabiting 
the rock crevices of cliffs. Especially do they seem to like deep, 
cool and well shaded gorges or deep and narrow cuts, and usually 
one finds extended over small cascades large widely spreading 
epiphytic cleavers of some Ficus or another. 
The Bagobos are a unique tribe, not a great many of them 
and all settled upon the southern and southeastern extensions 
of mount Apo. They are the most characteristic in dress and 
the most truly hospitable I have ever lived and worked among 
in the Philippines. Certainly they are trained botanists, and 
have a name for every plant in that wonderful flora of mount 
Apo and its vicinity. Occasionally my field labels are without 
their vernacular names, but that is because I failed to ask for 
them. It is most interesting how they came to recognize the nat- 
ural affinities of groups of plants, and to know that they actually 
possess a primitive system of classification based upon natural 
law and its result. These natives, especially those who live 
well up in the mountains, have characteristic names for close- 
ly allied groups of ferns, they know their eighteen species of oaks 
by practically one name only, most of the species of Canarium 
go under one name. But when it comes to the bamboos and 
the twenty five rattan species in their country, they are most care- 
ful in their specific names, for these are important economic plants 
and must be understood. I have on several occasions deliber- 
ately tried to confuse my old companion Angat by having other 
men at the camp verify his statements made to me in the field, 
and when material was on hand for comparison it has led to 
desperate discussions among themselves. My camp boss was 
from the lower country and he would always try to reconcile the 
lower flora with what we gathered in from the higher regions. 
