120 
MANGROVE SWAMPS 
TABLE XXV.—Analyses of Philippine mangrove-swamp barks submitted by 
the Bureau of Forestry to the Bureau of Plant Industry at Washington. 
[Data from Williams.] 






Common name. Scientific name. Teel solupe “Reds.” ear Tannin. | 
| 
Mangsaral Bruguiera parviflora W. 
and A. 24. 43 | 19. 82 4.61 YEAS 12.55 
Pototan)=— a= Bruguiera sexangula 
(Lour.) Poir. 37.36 36. 81 0.55 10.15 26. 66 
Tancalhes-= eee | Ceriops tagal (Perr.) C. B. 
Rob. 58.58 | 49.02 9.56 13.19 | 35.88 | 
Bakauan, 2222-2 Rhizophora candelaria DC - 53.91 | 51.03 2.88 11.64 39.39 


TABLE XXVI.—Analyses of Philippine mangrove-swamp barks. 
[Data from Williams.] 


Species. 
| 
Number | Average 
of of 
| determi- determi- 
| nations. | nations. 
| 

Bruguiera conjugata (Linn.) Merr 

Le 
Bruguiera sexangula (Lour.) Poir 
Bruguiera parviflora W. and A 
| Rhizophora candelaria DC 
Rhizophora mucronata Lam 
Sonneratia caseolaris Linn 
Xylocarpus moluccensis (Lam.) M. Roem 
Xylocarpus granatum Koen 
Cerions taqal (Perr) CxBe ROD seas aa ee 1 eC eee 
13 32.4 
| 14 9.1 
| 5 31.3 
9 27.8 
23 27.6 
4 11.8 
2 23.0 
| 2 23.2 | 

TABLE XXVII.—Analyses of mangrove-swamp barks from Sarawak, Borneo.* 
[Data from Bacon and Gana.] 










Common name. Scientific name. mts cas foals Be Ae Tannin. 
Per cent. Per cent. | Per cent. Per cent.| Per cent. 
Busan. =2-- | Bruguiera  conjugata 15.5 64.3 | 35.7 | 9.0 26.7 
(Linn.) Merr. 
iPototan See Bruguiera sexangula 16.1 64.0 36.0 8.0 27.2 
(Lour.) Poir. 
| BancAlpo ee eeres Ceriopstagal (Perr.) C. B. 13.8 63.8 36.2 6.9 29.3 
Robinson. 
Bakauan-lalaki__| Rhizophora candelaria DC- 14.7 58.3 41.7 9.6 32.0 
| Bakduan-babaye_| Rhizophora mucronata Lam 14.4 70.1 29:9 | 9.4 20.5 

a Analysis was made of some samples of mangrove barks brought from Sarawak, Borneo, 
by Dr. Foxworthy, of the botanical division of this Bureau. These barks are used by cutch 
factories and among the species in Borneo probably yield the highest amount of tannin. 
