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ILLUSTRATIONS. 
PLATE I. View looking southward from Buenavista Peak to Cabeaben Peak along 
the rim of the crater, which is on the right. The tree with an 
umbrella-shaped top seen on Cabcaben Peak, the ridge leading to it, 
and on the rim of the crater is Leptospermum amboinense. The rock 
in the foreground is in Plot H, Table XXIII. Freycinetia sp., a liana, 
is in front of it. Behind the rock on the right is Hugenia congesta, 
on the left are Photina luzonensis and one specimen of Vernonia 
arborea. 
II. Looking across the cafion near the head of the Lamao River to Caybubu 
Peak and the ridge leading to it. Caybubu Peak is shown on the- 
left. The steep slopes of the cafion are densely wooded except where 
almost perpendicular sides have made conditions too unstable for 
tree vegetation. 
III. View of parang vegetation. The large tree is Parkia rorburghii covered 
with a species of Loranthus. Parkia is in the process of forming new 
leaves. Note the jungle-like thicket beneath. Bambusa-Parkia for- 
mation. 
IV. View in the “parang.” In the center is Artocarpus communis. Below it 
on left, the small tree with a rosette of large leaves is Ficus pseudo- 
palma. Ficus hauili, Leea manillensis, Tabernemontana pandacaqui, 
and Gmelina hystrix are also present. Note the abundance of liana 
species. Bambusa-Parkia formation. 
V. View on the edge of a clearing. On the left is Areca catechu; on the 
right a coppice growth of Artocarpus communis. In the background 
a dense growth of the exotic species Prosopis juliflora, which is 
common near the coast. Bambusa-Parkia formation. 
VI. View in an easily flooded, dry river channel. On the right and left 
are specimens of Hugenia luzonensis ; in the center is a large specimen 
of Pandanus luzonensis. Beneath is dense growth of the maranta- 
ceous Donax arundastrum. The flood plain here is sandy. Anisop- 
tera-Strombosa formation. 
VII. View on river terrace about 3 meters above low water. In the center is a 
specimen of Pandanus whitfordii; on the left of it is Garcinia venu- 
losa with Dinochloa diffusa over it. In the foreground is a species of 
rattan (Calamus); the large tree in the background is Anisoptera 
vidaliana. Anisoptera-Strombosia formation. 
VIII. View of a low, rocky terrace easily flooded. Along. the edge of the 
stream at the right is Homonoia riparia, a willow-like euphorbia- 
ceous shrub; next it, in the center of the photograph, are Pandanus 
luzonensis and the grass Saccharum spontaneum. The trees in the 
background, beginning from right to left, are Dysorylom schizichitode, 
Anisoptera vidaliana, and Sarcocephalus cordatus. Photograph taken 
near close of the dry season. During the wet season this terrace is 
frequently flooded. Anisoptera-Strombosia formation, 
41339——6 429 
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