As we could not confirm that it was the same as C. sp. 'Lingga 19 - Platinum Line', my explorer friend decided to first term it as C. sp. 'Lingga 22'.
The cryptocorynes were growing fully submersed in the stream, the water level was higher as compared to when my friend visited it previously a few months ago.
From the close up photographs, you could see the striking lighter coloured veins of the leaves.
I scooped a few inhabitants of the stream for photography purpose.
The lighter coloured veins seemed to be metallic in colour, which was why my explorer friend termed this cryptocoryne as "platinum line". The underside of the leaves were greenish in colour and the leaves were bullated.
A distance away, I found some cryptocoryne growing in emersed form on the steeper portion of the stream banks.
The substrate was muddy and the pH of the water was around 5.0.
I unwittingly walked into the web of this striking spider which landed on my head. I hated spider and immediately called out to my friend to help to remove it away from me. Was this a poisonous spider and what would happened if it had bit me? => turn into spiderman?
We found many specimens with unopened spathes as shown below. Fruits were found too. My friend previously cut an unopened spathe of this species before and the limb seemed as if it was red in colour, see this link for the photographs.
Back in the hotel, we attempted to cut open three of the unopened spathes we collected and were shocked to find out that two of the unopened spathes actually harboured caterpillars inside them. We were not sure what type of caterpillars they were or how did they entered the unopened spathe in the first place. It seemed that the caterpillars had fed themselves with the internal male and female portions of the flower.

We found a large rhino beetle along the hotel corridor on our way out.
I enjoyed the ride thoroughly, travelling along the meandering river which varied in width ranging possibly from 30m to over 100m. At times, you might be travelling along a narrow section of the river with vegetation along the banks overhanging your boat. After a sharp turning, the scene might totally change when you suddenly enters the wider section of the river, which felt as if you had entered a lake.
We were lucky that that day was a rather windless day and the water was calm. We were able to see the beautiful reflections of the mountains, vegetation and clouds on the river water surface. Note also the change in vegetation along the way from inland forest to mangrove swamp.
Unfortunately, the boat was travelling rather fast and was making sharp turns which required the boat to rotate at times about 30 degrees to one side, I was not able to take clearer photographs using my canon A480 P&S camera. Below are some of the "better ones" which I took for you viewing.




We reached the end of the river and out into the open sea and could see the Pancur town which we were heading towards. It was close to sun set already. Pancur is a town along the edge of the island with many houses on stilts fronting the sea.
The location was a stream in the middle of what I viewed as a grass field at the edge of a forest. The cryptocorynes were submersed due to the high water level. The leaves of the cryptocoryne were greenish both on the upper and under sides. Some of the leaves had dark green markings on them.
My friend found the spathe of this cryptocoryne before during his previous trips, see his blog for the photographs. The limb was reddish in colour and had irregular outgrowths (protuberances), quite typical of cryptocorynes found on Lingga Island. The substrate was made of fine sand and the pH of the water was quite low, less than 5.0.