430 



The Philippine Journal of Science 



uu 



Table III. — Reproduction surveys in virgin forests of Negros. 



PLOT 1. 25 BY 100 METERS. 



Species. 



Seedling's 

 (up to 7 

 cms. in 

 diam- 

 eter). 



Saplings 

 (7 to 10 

 cms. in 

 diam- 

 eter). 



Poles (10 

 to 30 cms. 

 in diam- 

 eter). 



Stand- 

 ards (30 

 to 60 cms. 

 in diam- 

 eter). 



Trees 

 (above 60 

 cms. in I 

 diam- j 

 eter). | 



Shorea netrrosensis (red lauan) 



Shorea eximia (almon) 



Dioapyros sp. (ata-ata) 



Shorea polysperma (tanguile) 



Dipteroearpus grandiflorus (apitong). 

 All others 



569 

 193 

 147 

 80 

 56 

 301 



13 

 19 



34 

 38 



Totel. 



1,346 



34 



87 



PLOT 2, 50 BY 100 METERS. 



PLOT 3. 25 BY 100 METERS. 



PLOT 4. 50 BY 100 METERS. 



10 

 1 



18 





1,270 

 982 

 178 

 300 

 205 

 466 





13 

 14 

 18 

 3 

 18 

 62 



10 

 10 



11 

 4 



Shorea eximia (almon) _. 



2 

 3 

 2 

 3 

 36 





Shorea poly^erma it&RguWe) . 



6 

 11 



2 



2 





All others— 





Total 





3,401 



46 



128 



38 



17 





Shorea negrosensis {red lauan) .. _ .. 



579 



288 



98 



73 



33 



288 



2 



4 



6 



11 



2 



18 



41 



8 



1 



2 

 15 



6 



Shorea eximia (&\mon) _ ._ 



DioaptfTos sp. {utSL-aita.) 



4 



1 



Shorea polysperma (tangruile) 





Dipteroearpus grandiflorus (apitong) 



4 

 22 



2 



AUothers 



Total 







1,359 



32 



82 



22 



8 





Shorea negrosensis (red laaan) 



1,046 

 398 

 220 

 154 

 110 

 634 





8 

 2 



2 



1 



2 



1 



Sfcorea eximia (almon). 



1 



Dioepyros Bp. (ata-ata) 



3 1 23 

 1 

 ...; 4 



6 .S6 



Shorea polysperma (tanguile) 



1 

 21 



1 





3 



AUothers 



.'^S 



50 



Total 







2.562 



49 



143 



26 



6 





shortest possible rotation a large amount of accumulateci wood 

 capital which is not producing and which is, nevertheless, so 

 integral a part of the forest that its removal endangers the 

 very existence of the forest. 



THE FOREST OF BATAAN 



The southern part of Bataan Province, lying across the bay 

 from Manila in latitude 14° 30' north, is a mountainous region 



