646 The Philippine Journal of Science * 1922 
Humid. Dry. 
Plant No. 
Length | Length Length | Length 
of top. | of roots. Leaves. | of top. | of roots. Leaves. 
cm. cm. cm. em, 
eS SSS a een Come pete 57.6 27.5 19 34.5 27.0 16 
ee a ee bak bua wee aks oe 61.2 26.5 19 83.0 24.5 16 
Bae peo a a ee 43.7 28.0 17 46.5 29.0 17 
ee eA ase ee ooo kelat 23.5 23.0 16 87.8 23.5 16 
| CURE Asha! Nise SS RRS eee rv mney 51.0 22.0 18 44,6 23.5 19 
Gators oc ee he eo wkn sc ccce cen cukee 25.5 24.5 14 50.5 24.5 i i 
iia sek 42.1 25.2 17.2 41.1 25.8 | 16.8 
TABLE 9.—Absolute dry weights. 
| Humid. Dry. 
Plant No. 
Roots. Stem. | Leaves. | Roots. Stem. | Leaves. 
f g. g- g. g- g. g- 
Ree ee ca cake a Sad ke we 0.5140 1. 889: 1, 4144 0. 8629 0.7886 | 1.26 
Be. id eee He SS RES ooeaa Ss 0. 5560 1.1641 1.6279 0. 4153 0.7756 | 1.3993 
| Soe ie =---| 0.3624 0.9910 1.8770 0. 5610 1.1784 | 1.7679 
i ee es ce cen 0, 2209 0.8829 0. 8667 0. 3288 0.9887 | 1.2375 
: NESE EtER Ne Spa WANE taenenpeapie amie mE) 0. 4241 1.1150 1.5710 0. 5807 1.0878 |} 1.5372 
a oe ia acu aca saw eeee ee 0. 2055 1.4174 0. 8283 0.5934 1.2200 | 1.6020 
DUNES oon ck 0.3805 | 1.0766| 1.2809] 0.4653 1.0040] 1.4668 
TABLE 10.—Percentage of ash in individual plants. 
* Probable error of the average was calculated according to the formula: 
= 0.6745. 
P.E.= a Zid — 
5 ¥ . . n 
age probable tror of the mean; Sfd#, summation of the squares of the deviations of 
= values from the mean; n, number of individuals; 0.6745, a constant. 
any 
Humid. - Dry. 
Plant No. ee 
In roots. | In stem. |In leaves.| In roots. | In stem. |In leaves. 
P. ct. P. ct. P. ct. P. ct. P. ct. P. ct. 
toa cee 6.18 8.20 5.50 6. 83 3.62 5.94 
Basia conameig Seatpost 7.24 3.60 6.07) ° 6.54 3.88 6. 53 
__ EES RRS 2 Epa eee geo 8.14 3.47 4.77 7.62 3.39 5.88 
es rae Boo 8.42 5.17 8.33 7.02 8.31| 6.14 
ee 7,34 3.60 5.52 7.68 8.60} 6.19 
SSE BAM ORSSr SRA gees 6.91 5. 22 8.18 41 3.55 6.47 
Ne i peep ep etna iin Se 7.36| ° 4.04 6.39 1,18 3.56 6.11 
Probable error of mean _.__.......- £0.21} 40.23 £0.88 | +0.11| +£0.05} +£0.11 
ee 
