50 rilllJI'IMNI'; IM'ISINS. ClIMS. AND ()II>S 



roiulily jcuv(5 liu>^(^ yicld.s of piiuiiit; hy(li()chl<)ii<l(', rnclLinff ut 125". From 

 t.ho liij-fl"''" l)<)iliIl^': rcaclidiiM ;i very ,s(tmll fiiiaiilily of diixuiterio was ob- 

 laiiK'd, tlic Id 1 aliidinidc iru'lliiip: at 124 . 



'I'lid piiiK'ipal coiihI il iicid. of llw vnlalilc oil (iT thi.s Hami)l(; of the paj;- 

 Haiiif-C'ii'i rc.Hin \h Ihvfvfoif <l pimric. In a pr(!vioUH papcc I have nhown, 

 from llic cxarniiiatioii (d" a vciy larj^c iiutrdx^r of Hpccim(^iiH of Maidla elemi 

 from individual (icch, (hat, the IcrpciutH found in thoHc; trcoH vary (|uite 

 murkfdiy from Ircc; to trot-, and that one tree usually yi(dd.s hut a Kinj^lc 

 tcrp«'n('. Tho .samc^ would prohahly H<'cm to hold k'"»<1 I^'X" the paffHairiffuin 

 roHin, and it appcaiM piohahic that these ('<iiiiniii iii trees manufacture a 

 lurnfu Heries <d" l,er|)eneH and also the paieni sidi:;lancc of terfjenes, prymo]. 

 Tho noxt Hte|) will he to study th(! resin liorn one tree for a considerahlo 

 ItMipfth of lime, to diseover whether, fctr example, an individual tree; always 

 (jfiveH a resin conlainintj: pinene, or whether at otu; time it yields a product 

 havinir |iiii<'iie as a constituent, at another, a rt^sin conlaininj'; phellandr(!ne, 

 (.(,(•. ' ' ' '^ll»^ r-esin should he of considerahle value in making? clear 

 the jihysioloKie process of the plant in llie foriMalion of resins. 



Caiiariirni lullo^iini is ;i (i-cc reaching a (liauiclci- of 1 mcicr or 

 over. Tho youii^c bfaiichcs, leaves, and iiillon'sccnccs are more 

 or less covered with soil brown hairs; in au'c, Ihcy become 

 nearly smooth. The leaves ai'e pinnat.e and from '^0 to 50 centi- 

 meters lotiK", the leaflets 7 to If) centimeters in lenjj:th, tho base 

 roun(l(>d, or somewhat heart-shaped, the apex pointed. The 

 flowers are ^rreenish white, hairy, and ■I to 5 millimeters lon^. 

 Tho fruit is about 1 centimeter lon^c and rounded in cross section. 

 The wood is very similar to that of ('(iiKuiiuH lirzonicum. 



This species is a native of, and conlined to, tlie T*hilippinea. 

 It is widely distributed. 



l-'amily I )l rThlliOCAIirAlMOAK. 



All species of the family l)ipterocar|)aceae produce more or 

 less resin. The dipterocarps are foi" the most part large trees, 

 many of them reaching a heivrht of 50 oj- (10 meters. They are 

 the dominant species in the tall, lowland forests in tho Philippines 

 and in many other parts in tiie Indo-Malayan region. One of 

 tho most striking peculiarities of this family is that the species 

 occur in hirge luimbers, tho bulk of many forests being com- 

 l)osi'd of one or a few species of dipterocarps. As tho diptero- 

 carps constitute about Ihroo-fourths of tho total stand of timber 

 in the Islands, it is evident that the dipterocarp rosins could be 

 collected in great (luantities. The most important of those resins 

 are balau, a resinous oil obtained from DiptcrocarpHs grandi- 

 florKs (apitong), DiptrrDcarpus rcniiciJlHNs (panau) and other 

 species of PiptcrocdrpHx, and a similar rosin from Anisoptera 

 thurifcni (palosapis). Halau is used locally to a considerable 

 extent and has comnu-rcial possibiliti(\s. 



