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Linospadix albertisiana (Beccari)Burret Linospadix angustisectus (Beccari)Burret Linospadix longicruris (Beccari) Burret
Papua New Guinea and Indonesia. In Western, Sandaun, East Sepik, Madang, Morobe, Southern Highlands, Central, and Milne Bay Provinces in Papua New Guinea, and in Jayapura Division in Irian Jaya, in rainforest at 20-2000 m altitude.
Derivation of Name:
Named for Count Luigi Mafia d'Albertis (1841-1901), Italian zoologist, ethnologist and explorer, collector of the type specimen.
Clustering, small palm. Stems 2-10, erect
or bent horizontal, to 2 m tall, 7-10 mm
diameter; internodes elongate, to 4 cm long,
dark green; crown with 4-12 leaves. Leaves
simply bifid, or irregularly or regularly
segmented, 30-90 cm long; petiole 5-12 cm
long, to 3 mm wide; pinnae 2-12 per leaf,
segmented leaf 20-30 cm long, 5-10 mm
wide, once-ribbed, acuminate, 2 terminal
pinnae hasally united with the apex
attenuate and toothed; in bifid leaf with 1-2
segments either side, broadly attached to the
rachis, 5-7-ribbed, apex attenuate, toothed;
pinnae glossy mid to dark green above,
lighter green below; ribs and veins
prominent on both surfaces. Inflorescence to 50
cm long; peduncle 30-40 cm long, 1.9-2 mm
wide, laterally compressed, margins acute;
prophyll to 12 cm long; rachis 10-20 cm
long, slightly thicker than peduncle.
Flowers light green to cream. Staminate flowers
elongate, curved, subcylindrical[y obtuse,
3.5-4 mm long in bud; sepals rounded, concavely
pouched, finely coriaceous, dorsally
ridged; petals boat-shaped, coriaceous, 3
times as long as sepals; stamens 10-12,
unequal in length, filaments short; pistillate
flower ovate, to 3 mm long, petals 2 times
the length of the sepals. Fruit ellipsoid,
fusiform, evenly curved, attenuate to both
ends, 13-18 mm long, 3.5-6 mm wide, red
at maturity; epicarp minutely longitudinally
striate. Seed ellipsoid, slightly curved.
As with most other Linospadix species,
there is considerable variation in leaf form.
Most common are plants with bifid leaves
that have long attenuating segments; other
forms include fully pinnate leaves with narrow
pinnae, and forms that are irregularly
divided with combinations of united and
single pinnae. Flower and fruit forms are
remarkably unvarying considering the
extensive range of this species.
Linospadix albertisiana -
as Bacularia albertisiana -
was described by O. Beccari from plants
collected in 1877 by Count Luigi M.
d'Albertis on the Fly River,
Western Province, Papua New Guinea.
John Dowe (Text - from Palms & Cycads No. 58, Jan-Mar 1998)
Luke Nancarrow (Figure 1)