Calamus posoanus

NEW YORK BOTANICAL GARDEN
PALMS OF SULAWESI
Indonesia. Sulawesi Tengah: Poso Regency, Tambing Lake, Lore Lindu National Park, relatively
undisturbed forest near lake, 0ri9.503’S, 120°18.510’E, 1648 m elevation. 18 October 2017.
Calamus posoanus Rustiami	haruku
Stems solitary, 15 m long, 4 cm diameter. Sheaths densely covered with soft, flexible, needle-
like spines in rows; petioles 21 cm long; rachises 112 cm long; pinnae 10 per side of rachis,
elliptic, distantly but regularly arranged, with numerous vestigial spinules all over abaxial
surface; cirri spines regularly arranged in groups. Old inflorescence only present.
A. Henderson, Ramadhanil Pitopang & Sahlan 4277
Fieldwork carried out in collaboration with Tadulako University and funded by a Fulbright
Scholar Award.
03698064