710 



WHITFORD. 

 TABU Vir! — Hagachac type (average of Uf hectares.) 







Number 





Scientific name. 



Common name. 



0l trees 



per 

 hectare. 



Per 

 cent. 



I>I1'TKK<>< ARl'ACKAK: 









I'cnUtoiu' COttiorta Merr. .V Kolfc 



White lanan 

 Hagaehae 



11.018 

 10.619 



18. 28 

 17. 15 



f>iplrnirii>jinn afflndt Hnuulis _ .. 



Shorea pufeo Blame 



Guijo. 



3. 888 



5. 54 



THpteroeorpui sp. 



Totjil l>i)>trr<icari>aceae . . 



Apilong 



.141 



.23 



25. OH 



41. 50 



Lkcuminosak: 









Ptemearpui ttuHeut willd. __ 



Nana 



.648 



.95 



Anacaudiacea ■: 



Koordenlodendrom j>iinMlum Merr. 



Amuguis 



3. OSS 



G.01 



Dntnmtomilum tlno Merr. & Rolfe 



Dao .. 



Agupanga '.' . _ 



3. 907 



b, no 



0.48 

 10.50 



Mll.IACEAE ? 



I'i.mackae: 









mUmap 



Malaguibuvn 



3 128 



5 19 



ftuunuoui: 







CuiHiiiinn /u-oniciiin A. Gray 



Pili 



Pagsahinguin 



J i . :;:> i 



2. 25 



OanariuM ttUonm F.-Vill. 



COMBRBTACBAI: 







'n rmtnaUa pettueida l'resl 





i 





TtrmtmaHa nttau Proa] 





1 . m 

 1 



15.860 



1 . 16 

 25.47 1 



Teriuiiia/in tdvMt HlancO— 





All others, _ . , . 





Total 





00. 268 



100 







It will be seen by the above that in the norm type approximately 22 

 trees out of every 60 and in the hagachac type 25 but of every CO trees 

 per hectare are dipterocarps or respectively 83.11 per cent and 41.50 

 per cent of all trees over 40 centimeters. 



Unfortunately for the purposes of this paper the volume tables pub- 

 lished in Bulletin 6, Bhowing the cubic contents of timber per unit of 

 area do not include all of the species. But the results given below show- 

 ing the proportion of dipterocarps are ao1 Car from the actual proportion, 

 for B large per cent of the species not mentioned show a maximum 

 diameter of not over 45-50 centimeters and short boles usually one-fifth 

 to one-third the length of the boles of the dipterocarps. Four species, 

 Dracontomelum, agupanga and two species of Canarium mentioned in 

 the stand tables arc not included in the tables below. Agupanga has a 

 short bole usually about one-fifth the length of any of the dipterocarps 

 of the same diameter. While the bole of the Canarium is somewhat 

 longer yet the number of trees per hectare is small. Neither agupanga nor 

 the Canariums attain the maximum diameter of the dipterocarps. Dra- 

 contomelum dao on the other hand, reaches a maximum of 140 centi- 



