The plant (Aeschynanthus monetaria Dunn) was first identified by British botanist Stephen Troyte Dunn in 1912, based on the plant samples gathered from Arunachal Pradesh.
Published: 05th June 2022 06:14 PM | Last Updated: 05th June 2022 06:14 PM | A+ A A-
ITANAGAR: Researchers at the Botanical Survey of India (BSI) have rediscovered a rare plant, which is sometimes called the 'Indian lipstick plant', from remote Anjaw district in Arunachal Pradesh after more than a century.
The plant (Aeschynanthus monetaria Dunn) was first identified by British botanist Stephen Troyte Dunn in 1912, based on the plant samples gathered from Arunachal Pradesh by another English botanist, Isaac Henry Burkill.
"Due to the appearance of tubular red corolla, some of the species under the genus Aeschynanthus are called lipstick plants," BSI scientist Krishna Chowlu said in an article on the discovery published in Current Science journal.
During floristic studies in Arunachal Pradesh, Chowlu collected a few specimens of Aeschynanthus from Hyuliang and Chipru of Anjaw district in December 2021.
A review of the relevant documents as well as a critical study of the fresh specimens confirmed that the specimens were Aeschynanthus monetaria, which had never been obtained from India since Burkill in 1912.
As per the article co-authored by Gopal Krishna, the genus name Aeschynanthus is derived from the Greek aischyne or aischyn, which means shame or to feel embarrassed respectively, and anthos, which means flower.
Aeschynanthus monetaria Dunn is morphologically unique and distinct among all the Aeschynanthus species known from India by its fleshy orbicular leaves with a greenish upper surface and purplish-green lower surface.
The specific epithet 'monetaria' means 'mint-like', alluding to the appearance of its leaves.
The plant grows in moist and evergreen forests, at elevations ranging from 543 to 1134 m.
The flowering and fruiting time is between October and January.
The species has been provisionally assessed here as 'endangered', following the guidelines of the International Union for Conservation of Nature (IUCN), the global authority on the status of the natural world and the measures needed to safeguard it.
"Landslides are frequent in Anjaw district of Arunachal Pradesh. Developmental activities such as broadening of roads, construction of schools, new settlements and markets, and jhum cultivation are some of the major threats to this species in Arunachal Pradesh," Chowlu said in the abstract of the Current Science report.
There have been lots of rediscoveries of various species in Arunachal which speaks of the rich biodiversity of the state, but experts say that more dedicated explorations are needed to unravel more, according to Chowlu.
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