PLANTS OF SUMATRA 
Euphorbiaceae 
A porusa confusa Gagl . 
Tigapuluh Mts . , Riau Province , 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Kararapal area. 0°48'S; 102°31'E. Riverine 
forest near Sesirih base camp. 
Tree 12 m x 9 cm dia.; bark ± smooth, dark 
brown; fruit orangy-yellow. 
John S. Burley 
2058 21 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Clusiaceae 
CaloDhvllum venulosum Zoll . 
Tigapuluh Mts . , Riau Province , 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Karampal area. 0°48'S; 102°31'E. Riverine 
forest near Sesirih base camp. 
Tree 12 m x 15 cm; bark dark grey, ± flaky; 
fruit dull orange . 
John S. Burley 
2059 21 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATEIA 
Actinidaceae 
Saurauia 
Tigapuluh Mts . , Riau Province , 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Karampal area. 0°48'S; 102°31'E. Riverine 
forest near Sesirih base camp. 
Tree 9 m x 10 cm dbh; bark brown, deeply 
fissured; underbark soft, orangy- brown; 
flower white, waxy. 
PLANTS OF SUMATRA 
Euphorbiaceae 
Agrostistachvs longif olia ? Wight 
Tigapuluh Mts., Riau Province, 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Kararapal area. 0°48'S; 102°31'E. Riverine 
forest near Sesirih base camp. 
Understorey tree 9 m x 7 cm; flowers pemianth 
greenish; staminal tube white; fruit green. 
John S . Burley 
2061 21 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Tiliaceae 
Microcos lorzineii Burr . 
Tigapuluh Mts . , Riau Province , 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Karampal area. 0°48'S; 102°31'E. Riverine 
forest near Sesirih base camp. 
Tree 10 m x 25 cm dbh; bark ± smooth, dark 
brown; underbark orange; fruit red. 
John S. Burley 
2062 21 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HERBARIUM BOGORIENSE 
PLANTS OF SUMATRA 
Annonaceae 
Tigapuluh Mts . , Riau Province , 10 km SW of 
Talanglakat on Rengat-Jambi Rd. , Bukit 
Karampal area. 0°48'S; 102°31'E. Riverine 
forest near Sisirih base camp. 
Undershrub 1.5m tall; leaves to 40 cm long; 
fruit orangy-yellow. 
John S. Burley 
2063 21 November, 1988 
John S. Burley 
2060 21 November, 1988 
HARVARD UNIVERSITY HERBARIA 
HARVARD UNIVERSITY HERBARIA HERBARIUM BOGORIENSE 
HERBARIUM BOGORIENSE 
