214 
The Philippine Journal of Science 
191-1 
scanty. There are 76 species found both in the Mountain 
Province and elsewhere in the Philippines, but 63 of these are 
known outside the limits of the Archipelago, and all except four 
of these 63 are Malayan and therefore less in consonance with 
the ascertained affinities of the flora of the Mountain Province 
than with that of the rest of the Philippines. However, our 
present knowledge of the Philippine distribution of these 59 
Malayan species is, that there extend to the Mountain Province 
from, or less likely extend from the Mountain Province to : 
Eastern Luzon, but not the more southern islands 9 
Western Luzon but not the more southern islands 2 
Both eastern and western Luzon, but not the more southern islands.... 2 
Eastern but not western Luzon and more southern islands 8 
Western but not eastern Luzon and more southern islands 6 
Eastern and western Luzon and more southern islands 8 
Southern islands but not in Luzon south of Mountain Province 24 
There is some room for argument that the Philippine center 
of distribution of at least the first thirteen of these is the Moun- 
tain Province, but their Malayan distribution would throw sus- 
picion on any such conclusions, and it should be more profitable to 
confine attention to the four non-Malayan and the thirteen endemic 
species found both in the Mountain Province and elsewhere. 
With respect to the four, the presumption is strong that their 
spread has been from the north, for the ascertained areas of 
distribution are Formosa, Mountain Province, Canlaon; Japan, 
Formosa, Mountain Province, Mindoro ; Bhotan, Formosa, Moun- 
tain Province, Zambales ; and Sikkim, Mountain Province, Bana- 
jao, respectively. The thirteen will be listed, as in practically 
every case, it will be open to question whether they have migrated 
to the Mountain Province from more southern hills or have 
taken the opposite route. 
Species. 
Ascertained distribution outside of the 
Mountain Province. 
Braunfelsia luzonensis Broth. 
Zambales. 
Pilopogon subexasperatus Broth. 
Zambales, Banajao. 
Trichostomum subduriusculum (C. M.) Broth. 
Butuan. 
Schlotheimia wallisii C. M. 
Zambales, Banajao. 
Pogonatum albo-marginatum. (C. M.) Jaeg. 
Zambales, Abu, Mariveles. Lanao. 
Pilopogon spurio-cirratum Broth. 
Banajao. 
S-ymphysodontella subulata Broth. 
Negros. 
Entodon longidens Broth. 
Apo, Lanao. 
Ectropothecium assimile Broth. 
Rizal, Maquiling, Butuan, Bukidnon. 
Ectropothecium micropyxis Broth. 
Maquiling, Butuan, 
Ectropothecium subintorqucitum Broth. 
Maquiling, Canlaon, Zamboanga. 
Vesicularia campylothecium Broth. 
Laguna. 
Meiothecium attenuatum Broth. 
Laguna. 
