population of this species being too small,
I was unable to send any specimens to
scientists overseas to find out what it was.
Nevertheless, I will return to that place
and search for it in the near future. I hope
I can find the spathe, which is the key to
identifying this beautiful water plant.
Brackish Water and
Freshwater Tidal Zones
This is the most common species in
Sarawak. It is mostly found in either open
space or under the shade of the mangrove
forest in brackish-water tidal zones where
it is very close to the coast. It is the biggest
and tallest Cryptocoryne from Sarawak,
growing up to one meter (about 3 feet)! It
is also found growing at the mud bank with
C. lingua in freshwater tidal zones in the
central part of Sungai Sarawak.
Cryptocoryne bullosa is commonly found in the clearwater rivers and streams of central Sarawak,
but it faces the threat of habitat loss due to deforestation.
This aquatic plant grows on the mud
bank, under the shade in the freshwater
tidal zone. Its leaves are very thick and
spoon shaped. The limb of the spathe is
yellowish colored with fine red dots. The
coverage area of this species is very wide.
It can be found in the rivers of southern
Sarawak to the lower part of the Rajang
River in the central part of Sarawak. In the
Rajang River Basin it usually grows in very
open areas where the leaves are covered by
a thick layer of mud. This mud prevents
the leaf from being burned by the scorching
This is a new species discovered by Dr. Isa
Ipor, a researcher from a local university in
Sarawak. It is named after a past governor of
Sarawak, the late Tun Ahmad Zaidi Adruce,
and is only found growing on muddy ground
at the riverbank where the river is a tributary
of the Sungai Tinjar in the Miri area of
northern Sarawak. The leaf looks a bit like
Cryptocoryne lingua. The spathe is about 14
cm ( 5½ inches) long, and whitish colored
with very fine purple spots.
Cryptocoryne ciliata is found in the brackish- and freshwater tidal zones of Sarawak.
Bastmeijer, J.D.2007.Th e Crypts Pages. www.
Hiscock, P. 2003. Encyclopedia of Aquarium Plants.
Interpet Publishing. Surrey, England. 205 pp.
Ipor, I. B., C. S. Tawan & N. Jacobsen. 2005. “A new
species of Cryptocoryne (Araceae) from Borneo.”
Gardens’ Bulletin (Singapore) 57: 1–6.
Jacobsen, N. 1985. The Cryptocorynen. Alfred Kernen
Verlag. Stuttgart, Germany.
Polunin, I. 1988. Plants and Flowers of Malaysia.
Times Editions, Singapore. 160 pp.
Cryptocoryne lingua grows in shaded areas of the freshwater tidal zone, as well as open areas in
the Rajang River Basin, where a covering of mud protects it from the tropical sun.