An aerial stem-parasitic flowering plant species Dendrophthoe longensis was from Long Islands of middle Andamans, whereas a small herb Petrocosmea arunachalense was discovered from a cave from West Kameng district of Arunachal Pradesh
The species is sparsely scattered and confined to a few localities of Long Island. Its distribution was recorded only from Sigmendera, Lalaji Bay and near the forest guest house of Long Island. Larvae bore into entire plant parts (young shoots, leaves, inflorescence, flowers, young fruits) causing severe damage and leading to death of this hemi-parasitic mistletoe species,” said Dr. Singh, who is head of Andaman and Nicobar Regional Centre of Botanical Survey of India.
Conservation status of the new species is assessed as “Endangered” based on the IUCN categories and criteria (IUCN, 2020). Indian Dendrophthoe are represented by nine species among which four are from Andaman and Nicobar Islands of which two species are endemic to the region.
“Aerial stem-parasitic flowering mistletoe plants are under great pressure due to destruction of natural habitat and other anthropogenic activities especially timber harvesting of host tree species, developmental works which are causing population declines worldwide,” Dr. Singh added. The details of the discovery have been published in an International Journal of Botanical Taxonomy and Geobotany.
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