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| Nepenthes longiptera Victoriano in Victoriano,. 2021. |
A new species of Nepenthes (Nepenthaceae) from Aceh Province, Indonesia, Nepenthes longiptera Victoriano is herein described and illustrated. The species is unique among all other Nepenthes in Sumatra by the presence of wings on its upper pitchers. Comprehensive description, photographs, geographical distribution and preliminary IUCN conservation assessment are provided for the new species. Hybrids of this new taxon with other species are also reported in this paper.
Keywords: Nepenthes, carnivorous plant, Aceh, Sumatra, new species
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| Nepenthes longiptera Victoriano spec. nov. A. Lower pitcher, mostly bright in colour, ranging from red to orange, or red with speckles. B. Intermediate pitcher, the transition from lower to upper pitcher, usually still retains the colouration of lower pitchers. C. Upper pitcher, with its unique characteristic that still has wings which mostly reduced to ribs in other species, the colour is pure green when mature. Photos by Malcolm Victoriano. |
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| Nepenthes longiptera Victoriano spec. nov. Vining plant with upper pitcher in locus classicus. |
Nepenthes longiptera Victoriano
Nepenthes longiptera is similar to N. tobaica but
differs in having larger habit, with well developed
upper pitcher wings (N. tobaica: reduced to ribs);
rhomboid stem in cross-section (N. tobaica:
obtusely triangular); and the presence of an
appendage under the lid (N. tobaica: absent).
Etymology. From Latin longus means long and
Latinised Greek pteron means wing; referring to
the presence of a relatively long pair of wings
of the upper pitchers, it runs down from below
the peristome to the apex of the tendril. It is
resembling the fins of Long-Finned Prickleback
fish, Xenolumpenus longipterus Shinohara &
Yabe
CONCLUSION:
Nepenthes longiptera is a new species from
Aceh, Sumatra, Indonesia. It is similar to N. tobaica but differs in having larger habit, with well
developed wings on upper pitcher (N. tobaica: reduced to ribs); rhomboid stem in cross-section (N.
tobaica: obtusely triangular); and the presence of
an appendage under the lid (N. tobaica: absent).
This new species is probably endemic to Aceh
province and only known from Nagan Raya and
Central Aceh Regency. It has several putative
natural hybrids with other Sumatran species which
are never been recorded in Aceh before. Some
Acehense species such as N. lavicola, N. mikei and
N. tobaica are abundant in highland forests but
these species had been recorded with no hybrid
with other species in this area (McPherson, 2009).
Malcolm Victoriano. 2021. A New Species of Nepenthes (Nepenthaceae) and Its Natural Hybrids from Aceh, Sumatra, Indonesia. Reinwardtia. 20(1); 17-26. DOI: 10.14203/reinwardtia.v20i1.3932
