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PLratE XXXVII. “Elfin” forest near top of Mount Mariveles. The tree species 
are mostly Hugenia congesta, Adinandra luzonica, and Vie- 
cinium jagori. Note the rich development of mosses, liver- 
worts, and “filmy” ferns on the trunks of trees. Hugenia- 
Vaccinium formation. 
XXXVIII. Epiphytic vegetation on Mount Mariveles. Note the orchid (un- 
known sp.) on the branch of Leptospermum amboinense. On 
this branch in the center is a seedling of Vaccinium jagori; 
on the right, slightly out of foeus, is the orchid Acoridium 
tenellum. A moss, Arobryum lanosum, and a small creeping 
fern, Humata repens, are also common on the same branch. 
Below is a mass of the filmy fern, Hymenophyllum sp., now 
dried up. In this are Humata, Selaginella, Rhododendron 
quadrasianum, the moss Leucobryum javense, and the liver- 
worts Mastigophora diclados and Bazzania praerupta. Buge- 
nia-Vaccinium formation. 
. Specimen of the bird’s-nest fern Asplenium nidus growing on 
Bugenia acuminatissima. Bugenia-Vaccinium formation. 
. View at the mouth of the Lamao River. Note the meadow in 
the center, back of which is the Nipa-Acanthus formation. 
On the left are elements of both Nipa and Mangrove swamps. 
In the background the bamboo Bambusa blumeana. 
. View of a sea cliff near the mouth of the Lamao River. ‘The 
large tree on the edge is Vitex littoralis (molave), below it 
on the right is Pandanus tectorius. On the left is Bambusa 
lumanpao. The waves and shore currents on the terrace at 
the base are too strong to permit the mangrove vegetation 
to obtain a foothold. 
. View in the rocky river bed of the Lamao River showing the 
peculiar habit of Homonoya riparia. The floods of the rainy 
season repeatedly strip this tree of its leaves. The fern 
shown in the picture is Callipteris esculenta. 
. A—Leaves of Buchanania florida. 1, grows in protected posi- 
tion at 180 meters; 2, taken from a tree growing on an 
exposed ridge at 914 meters. B—Leaves of Calophyllum 
whitfordii. 1, taken from tree on a protected ridge at 640 
meters; 2, taken from a tree growing on a protected ridge 
at 1,100 meters; 3, taken from a tree on an exposed peak at 
914 meters; two-thirds natural size. 
. A—Leaves of Myrica rubra. 1 and 2 from the same tree at 
640 meters; 1, from the lower shaded branches, and 2 from 
an upper branch; 3, taken from a tree at 1,150 meters. B— 
Leaves of Ternstroemia toquian. 1, taken from a tree on 
exposed peak at 920 meters; 2, from a tree on protected slope 
at 640 meters; two-thirds natural size. 
. A—1, 2, and 4, leaves of tree Hugenia acuminatissima; 1, taken 
from tree growing on protected slope at 940 meters; 2, at 
815 meters, and 4, at 1,060 meters; 3, leaf of tree of 
Rugenia acuminatissima var. parva, taken from a tree grow- 
ing on exposed peak at 920 meters. B—Leaves of Hugenia 
congesta, C—1l, leaves of tree of Leucosyke capitellata var. 
celtidifolia growing on edge of a cliff at 920 meters; 2, leaf 
of Leucosyke capitellata growing near the bottom of the river 
cafion at 635 meters. Two-thirds natural size. 
