Throwing fresh light on the
uncharted biodiversity in India’s
northeastern region,
researchers from the University
of Calicut in Kerala have
reported the discovery of
four new species of balsam
from various locations in
Arunachal Pradesh.
The team came across the
new species while scouring
the Eastern Himalayas as
part of an expedition supported
by the Department of
Science and Technology and
the International Association
for Plant Taxonomy, Slovakia.
Commonly known as jewel
weeds because of the diverse
colour of the owers,
balsams are distributed
throughout the Eastern Himalayas
and the Western
Ghats, Sri Lanka, South East
Asia, Africa and Madagascar.
The genus is called Impatiens,
signifying the impatient
nature of the fruits
which explode when
touched. The researchers
have published their ndings
in the international journals
Phytotaxa and Webbia.
Reported from Pongchan,
Impatiens haridasanii was
named after Haridasan,
former scientist, State Forest
Research Institute, Arunachal
Pradesh, for his contribution
to the taxonomy of
the northeastern States. The
species is characterised by
small yellow owers and hairy
leaves.
Impatiens pseudocitrina,
discovered in Anjaw district,
sports bright yellow owers
with small red spots on the
throat and a long spur at the
back. The species name denotes
the similarities with I.
citrina. A magnicent species
discovered from the
Lower Dibang valley, Impatiens
nilalohitae grows to a
height of more than one
metre and has dark purple
owers with pale yellow
throat and green stalk. The
name nilalohitae denotes
the dark purple colour in
Sanskrit.
Another spectacular balsam,
I. roingensis, was found
growing in Roing and Upper
Siang. The plant has clustered
white owers with yellow
patch on the mouth and
hooked spur.
According to the authors,
road widening works, deforestation
and other development
activities are posing a
threat to the natural habitat
of the new species.
The researchers have also
reported the rediscovery of
another species I. agastyamalayensis
from the Western
Ghats after a gap of more
than a century.
India is home to more
than 230 balsam species.
Earlier, scientists had reported
the discovery of Impatiens
arunachalensis, a
critically endangered species,
from the Upper Siang
district. Another balsam species
Impatiens walongensis
has been reported from Anjaw
district.
Thursday, 4 January 2018
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