‘ 
| 
404 
having a place in this forest similar to that occupied by the bamboo in 
the Bambusa-Parkia formation. Indeed, on the border between the two 
there is a mixture of this element with the bamboo; for both together, 
or islands of one surrounded by the other, prevail as a second-story 
vegetation. _ 
FORESTS OF RIVER TERRACES. 
Much has been written concerning the floristic composition of a tropical 
forest. Lists of tree species have been made which show the number of 
species, but so far as is known there exists no quantitative analysis of 
a tropical forest.*”7 The following tables will give some idea of the com- 
plexity of the forests of the Lamao Reserve. 
Description of Table XIII. 
The plot is on a low, rocky, narrow terrace of Lamao River at an altitude of 
100 meters. It comprises an area of approximately 8,000 square meters. A 
gives the number of trees over 4 meters in height; second line under this heading, 
the number under 4 meters in height, including seedlings; B, the percentage of each 
species, and ©, the percentage of trees of each species in the adjoining hillside plot. 
(See next table.) 
Tanpte XITI. 
Name of plant. A. B. c | 
ihr. eee RT OES. PAOLO 65g ci spe oo by ~~- sr peboadi bun Sepemee 4 8.3 2.10 
Ae LAE Dn hea RS apt AAR Re ACSa e NPR 27 TASTE ES SE AE Had ak a 7.0 | 
OG: Saaerecramiia SDOMOMR oo ncn he oo eo ea 3 aoe 4 4.1 22 
PRIN eR ae Ramen: Pearse n OB aetna ale 
Db, ee POI Sek oo. eeepc m1 3.3 1,22 
6. Calophyllum wallichianum_____--.-.--------------------------- 19 hee 77 
Tu eae OI coo kale eos ek 7 | 2.6 1.00 
Nae ae Ta a a Sa i oe 8 | AoE eh eee 
Pee ee 8 DSi hee ae 
ee PT EEN oo ete ae econ cmdebawearesciiares : 2.31 7.74 
PTI TOR Ceo Su ledsaba ue eenenee Ai | 2. 02 4. 64 
eit ROMER JUSONCUBING co2 asec cewek nen onan a ennncaesssunwoueeneans q 2. 02 44 
Many. 
I a PO UCLA ek gn a ge ee 7 2.02 255 
Many. 
Pa, PRU OCRNORUN TUONO seas a Sk os reba eben wl : 2 OR eee en se 
15, Dysoxylum cumingianum _____ Sian bain pane wines as : 1.73 =p wT 
1 TD ES Se ee r. 1.78 1.19 
iy er eeregarnaron pinmatum 23552 0a --. = B 1.78 a ia, 
“The writer has not had access to all the literature on the subject. 
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