Mimosaceae 
PLANTS OF SUMATRA 
Bombacaceae 
Durio 
PLANTS OF SUMATRA 
Tigapulu Mts . , Riau Province , 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill slope, rare. 
Climber c. 8m tall; 2 cm dia. ; calyx dark 
green; anther yellow. 
J. S. Burley, Tukirin et al . 
1210 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Annonaceae 
Desmos dasymachalus cf. (Bl.) Safford 
Tigapulu Mts., Riau Province, 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill slope, rare. 
Tree c. 7 m tall; 6.5 cm dia.; densely 
branched; tepal pale green; fruit pink; leaf 
glaucous underneath. 
J. S. Burley, Tukirin et al . 
1211 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Rubiaceae 
Tricalsia singular is 
Tigapulu Mts . , Riau Province , 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill slope, rare. 
Tree c. 12.5 m tall; 12 cm dia.; very thin 
bark, pale yellow; wood yellow, hard, used 
for furniture; branched at the top; leaf 
shining green; young fruit pale green. Local 
name : Kayu sarang tupai . 
J. S. Burley, Tukirin et al . 
1212 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
Tigapulu Mts . , Riau Province , 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill slope. 
Tree c . 40 m tall; 75 cm dia. ; calyx greenish 
brown; petal pure white; staminal tube creamy 
white; anther yellow; stigma cream; fetid 
smell. Young fruit pale brown; bark thick, 
brown inside; staminal tube c . 9 cm long, 0.3 
cm dia. 
J. S. Burley, Tukirin et al . 
1213 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Sapindaceae 
Xerospermum xantho phyl 1 um Radik. 
Tigapulu Mts . , Riau Province , 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill slope. 
Small tree c. 12.5 m tall; 10 cm dia.; 
sparsely branched; calyx green; corolla 
white; stigma white. 
J. S. Burley, Tukirin et al . 
1214 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Lauraceae 
Litsea 
Tigapulu Mts., Riau Province, 5 km W of 
Talanglakat on Rengat-Jambi Road, Bukit 
Karampal area. 102°32'E, 0°46'S. Alt.: c. 100 
m. On hill side, slightly open places. 
Small tree c. 5 m tall; 4 cm dia. ; young leaf 
pink; peduncle pink; flower bud glaucous 
green. 
J. S. Burley, Tukirin et al . 
1215 6 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
