409 
luzonicum, Gnetum latifolium, Pothos philippinensis, Pothoidium 
lobbianum, Freycenetia luzonensis, and the large leaved Conocephalus 
violaceus were growing on the same individual. Among the other 
large lianas noted were Strychnos multiflora, Tetracera sarmentosa, 
Dinochloa diffusa, Ficus bordenii, Anamirta cocculus, Combretum 
squamosum, Cnestis ramiflora, five species of Calamus, Stizxis philip- 
pinensis, Rivea luzonensis, species of Cissus, Mucuna imbricata, Dioscorea 
pentaphylia, and others. Some idea will be given of the character of the 
' vegetation by the three photographs taken in or near the plot in con- 
sideration. (Pls. VI, VII, VIII.) 
The character of the vegetation on terraces similar to that already 
described, but the boulders lying in which are to a greater extent covered 
by the wash of the adjoining slopes and which usually are slightly higher 
in situation, is shown by Plates IX, X, XI, and XII. 
FORESTS OF SLOPES. 
Description of Table XIV. 
The plot classified in the following table is on the hillside, extending up the 
slopes at right angles to the one on the river valley terrace (See Table XIII). 
It is approximately 60 meters in width and 170 meters in length. The area thus 
contains 10,200 square meters. The gradient averages about 27 degrees, but in 
places it is as much as 40 degrees, and for a short distance halfway up the hill 
it is nearly level. The plot is divided into 5 subplots roughly corresponding to 
15-meter contour lines. Beginning at A, the plot runs uphill to E. The column 
F gives the total number of trees over 4 meters in height in all the plots, and G 
the total number under 4 meters. H gives the percentage of each species, and I 
the percentage of species in the river terrace plot (see Table XIII). 
TABLE XIV. 
Se eRe . : 
Name A. | B. | C | D. |. 3.4.4 ee H I 
S| al ol ee eee 
, 1. Strombosia philippinensis_____ ve ae 1 13 vA eae 20 4. Sock 10. 50 1,15 
| 9 SBP. 40: b= 1B ee oe |} 113 
2, Gnetum gnemon ____-_-________ 3 iee Biers Bea cee. 3 ment 7.74 2.31 | 
cc Se 4 3 | 0 Be tar Sats Diag : | 
3. Diospyros pilosanthera________- 3 Gt 0 fot eee | 4.64 2.02 | 
Bi) Oh MO) get eh 80 
4. Aporosa symplocosifolia __-____|__-___ ge ares 2 =. 1 hage sp ee Bee Pg Perel kara 
1 eee | es 28 | 
G. BHOLER BUIKO ~ ole d 2 6 13 | 6 | 4 Si ae 13.48 1)15..°| 
1 1} 380] 94 | 7.1 Soe 76 | 
6. Reinwardtiodendron merrillii_ 8 14 5 2 ieesee J den ick Goel 1,78 
27 8 22 | 9 yD pea a 68 
7, Cyclostemon bordenii__.______. 6 6 8} Ad g}> 96 i. | 2.88 | 86 
8 21 16): IB een 73 
8, Shorea contorta -______-_______ Esco 1 eae Oe tet Sek ene 2, 65 1,44 
Soe y * Se 4 | = Bos eee 12 
9. Aglaia harmsiana ______________ 3 6 ya 4 6 wi Og Pa San 2.32 57 
2 5 6 8 24 Toc 35 
10. Dipterocarpus vernicifluus____ 4 3 At} 1 2 a eae 2.21 1, 44 
. | 10 20 15 | fap RES 52 
11. Anisoptera vidaliana_____._____} ] 2 4 8 1 19 | att. 2.10 | 8. 30 
peear 1 A | 3 2 erect 10 
12, Turpinia pomifera -___...______|______ 1 i. | 9 8 19: |. ae 2.10 . 86 
TES 1 1 eee 5 eae ae 
oS ea ie Be Le 
