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Post by Martin Hingst on Feb 26, 2009 12:27:09 GMT
Hi, I wanted to share some pics of my U. arnhemica traps with you. This sight was new to me - and maybe to you, as there are not many pics to be found on the web (I found none). The traps are nearly 1cm big, together with the appendages. Regards Martin
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sweetpea
Full Member
MOLLIE RILSTONE
Posts: 163
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Post by sweetpea on Feb 26, 2009 13:18:07 GMT
Konnichiwa! MARVELLOUS Do you have a bit distant view(the entire pot)? Thank you for sharing your images!
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Post by Brian Barnes on Feb 26, 2009 13:19:29 GMT
Hi Martin,
Great pics and plant! Thanks for sharing this rare beauty with us...
Happy Growing,
Brian.
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Post by Dave Evans on Feb 26, 2009 21:33:25 GMT
Wow, never even heard of this species before.
Truly alien in appearance!
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fred
Full Member
Posts: 25
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Post by fred on Feb 27, 2009 15:13:32 GMT
Wow, impressive !
This should spark some interest in this species, does it set seed/germinate easily ?
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Post by ICPS-bob on Feb 27, 2009 17:32:54 GMT
Fantastic photos! There are a few links to images of the flower at users.humboldt.edu/rziemer/Utricularia.html#arnhemica Taylor (page 131) writes: " Utricularia arnhemica shares with U. humboldtii the distinction of bearing the largest traps known in the genus, but the very large ones (up to 1.2 cm long) are only produced when the plant is growing under the most favourable conditions."
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Post by Martin Hingst on Mar 2, 2009 10:04:28 GMT
Thanks for the nice comments! Bob, I know this sentence by Taylor just too well since I have this plant, this line really haunted me - as I want to come as close to the ideal conditions for my plants as possible, and so the trap size in my arnhemica became a kind of indicator for my conditions. Well - I am very satisfied My conditions are: high water level (up to the soil level), high temperatures (around 35°C /day, above 20°C /night), and a very high light level (1000 Watt/sqm fluorescents in 25cm distance, what yields in a light level close to 100.000 lux). I use a sand/peat mix with a high amount of sand (around 2/3). Regards Martin
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Post by brokken on Mar 4, 2009 6:33:03 GMT
I had to double take - for a moment, I thought I was looking at baby VFTs growing among the utricularia. That's an amazing species! Thank you for sharing those absolutely astonishing photos with us!
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Post by ICPS-bob on Mar 4, 2009 23:43:46 GMT
I also had a double-take when I saw the first picture. I thought they were small Darlingtonia.
Martin, have you teased the "appendages" to see if the bladder trap responds? Could the traps catch prey without being submerged? These traps are large enough that one might watch a capture without a microscope.
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Post by sarracenialover on Mar 5, 2009 2:57:18 GMT
This could be interesting to see how the bladders catches its prey. This would be the first time I see bladders suck insects from the "air". Martin, I really am jealous of your beautiful plant.
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Post by Martin Hingst on Mar 5, 2009 21:33:12 GMT
Hi,
though I haven't tried so far, I expect that the traps have to be submerged to work.
I was on a trip for a month, in this time I had sealed the tank and provided a high water level, so the friend who did the vacation care had only to fill up the water weekly. I think the plant was submerged most of the time, and that this is one of the necessarities for the plant to build up those big traps. As said before, I think these traps are built for catching bigger prey of the open water. I will soon try out to trigger the traps and let you know then.
Sorry but I won't have any spares the next time.
Regards
Martin
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Post by sarracenialover on Mar 6, 2009 3:32:22 GMT
Right, I've forgotten. I guess the bladders would create a vaacum in the water and that would set the trap. hopefully you can get them to work
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