New Dendroccilamus from Sumatra 
79 
Table 1. Dendrocalamus luteus Damayanto & Widjaja compared to closely related species. 
D. luteus 
D. bengkalisensis 
D. buar 
D. bait 
Shoot 
Orange with white 
hairs and white 
wax on the upper 
sheath 
Orange with white 
hairs or glabrous 
on the upper 
sheath, white wax 
not seen 
Orange with 
white hairs and 
white wax on the 
upper sheath 
Orange with white 
hairs on the upper 
sheath, white wax 
not seen 
Culm colour 
Yellowish green to 
yellow 
Green 
Green 
Green 
Culm sheath 
auricles 
Rounded, 0.4-0.5 
cm high, bristles 
2-2.8 cm long 
Rounded, 0.7-1 
cm high, bristles 
0.7-2.5 cm long 
Rim like and 
crisped to blade 
base, bristles 
0.9-1.8 cm long 
Rounded, bristles 
1.0-1.5 cm long 
Culm sheath 
ligule 
Dentate, 0.2-0.4 
cm high, bristles 
few 0.4-0.6 cm 
long 
Denticulate, up 
to 0.2 cm high, 
bristles up to 0.2 
(-0.5) cm long 
Denticulate, 
irregular, 0.7-1.9 
cm high, bristles 
0.4 -1.5 cm 
Irregular, up to 1 
cm, glabrous 
Culm sheath 
blade 
Spreading when 
young, reflexed 
when mature 
Reflexed 
Erect to reflexed 
Erect to reflexed 
Culm sheath 
margin 
White hairs 
and replaced by 
brownish hairs 
Absent 
Absent 
Absent 
Lower leaf 
surface 
Pubescent 
Pubescent 
Glabrous 
Glabrous 
Leaf sheath 
auricles 
Lobe-like, bristles 
0.9-1.7 cm long 
Rounded lobes, 
bristles 0.9-1.7 
cm long 
Small to incon¬ 
spicuous, bristles 
0.1-0.2 cm long 
Small to incon¬ 
spicuous, bristles 
0.4-0.6 (-1.2) cm 
long 
Palea 
Keeled 
No data 
Not keeled 
Not keeled 
ACKNOWLEDGEMENTS. We would like to thank the Director of the Herbarium Bogoriense 
(BO), Botany Division, Research Center for Biology, LIPI for allowing the consultation of 
research material and the use of research facilities. We would like also to thank the Director 
and staff of Harapan Rainforest (Indonesian Ecosystem Restoration) for permission and 
funding to collect specimens. The Asian Logging Company, who were the previous owner 
of the Indonesian Ecosystem Restoration, kindly issued a permit to collect bamboo in their 
area. Thanks are due to Messrs. Zelvin, Fery and Edi for helping to collect the specimens and 
Mr Wahyudi Santoso (BO) for preparing the illustration. We sincerely thank Dr Wong Khoon 
Meng (SING) for reviewing this manuscript before it was submitted. 
