16,4 McGregor: Some Features of the Philippine Ornis 437 
Plate 31 
A cultivated nipa swamp; Nipa fruticans Wurmb. 
Plate 32 
Midmountain forest at an altitude of 740 meters on Mount Maquiling, 
Luzon. The conspicuous vines in the background belong to the 
genus Freycinetia. The large bole on the right of the picture 
is a tree of the genus Ficus, showing fruits growing on the 
trunk. (Photograph by Brown.) 
Plate 33 
A ravine in the lower part of the mossy forest, Mount Maquiling, Luzon. 
Note the tree ferns and the open character of the vegetation. 
(Photograph by Brown.) 
Plate 34 
A level area near the lower limits of the mossy forest. Mount Maquiling, 
Luzon. The vegetation is much denser than in the ravine shown 
in plate 33. (Photograph by Brown.) 
Plate 35 
The summit of Mount Pulog, Mountain Province, Luzon. This peak differs 
from most of the other high Philippine mountains in having the 
summit covered with grass. 
