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Post by daniel on Sept 11, 2008 18:09:23 GMT -5
Hi, here are 2 different forms of D. roraimae, the first one from the Gran Sabana and the second from Kukenan Tepui. They are looking totally different in their growth. D. roraimae ´red plants, Gran Sabana´ is forming relatively fast nice stems and has white flowers D. roraimae ´Kukenan´ has a flat rosette and a slightely violett flower colour Best regards, Dani
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Post by Brian Barnes on Sept 12, 2008 4:15:05 GMT -5
Hello Dani, Those are nice Drosera with good color... Thanks for sharing them with us! Happy Growing, Brian.
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Post by daniel on Sept 12, 2008 20:52:10 GMT -5
Hi Brian, thanks. The Gran Sabana plants are getting more red since a few days, i really wonder why. I have changed nothing, perhaps it´s a result from the lower temperatures because of the bad weather we have here since a few weeks, summer seems to be over. But, the "redder" the better. ;D Best regards, Dani
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Post by daniel on Oct 13, 2008 19:37:56 GMT -5
Hello, here i have another form from D. roraimae, it´s from ´Cerro Adaua, Estado Bolivar, Venezuela´. The plant itself is very similar to the form from ´Kukenan Tepui´, but the flowers are white (like the red plants) and they are nodding/hanging down. Very unique, something like this i have not seen till now by any other Drosera, perhaps it´s some kind of protection against strong rainfalls. The sepals and pedicells are bristly, the other forms i´m growing are not bristly or hairy. The closed flower is first becoming erect over night or the next day when the pedicell elongates after pollination. It was relatively difficult to take some relatively good pictures because of the hanging flower, but the interesting aspects are visible. The plant itself is not looking very nice in the moment because of the 2 flowerstalks, later i will add a picture from the rosette. from slightely above from the side from slightely below from below Best regards, Dani
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Post by Brian Barnes on Oct 15, 2008 5:46:21 GMT -5
Hi Dani, Very interesting flower indeed! I wouldn't be surprised if it is a protective mechanism to ensure good pollination in a very wet environment. It would be very interesting to know it's 'in situ' situation during it's natural flowering season. The bristles are quite interesting also!
Happy Growing, Brian.
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Post by daniel on Oct 16, 2008 18:28:09 GMT -5
Hi Brian, yes, it must be some kind of protection. But i´m wondering a little bit why other Drosera from similar regions are not doing the same, for example D. roraimae from ´Kukenen Tepui´ is flowering with "normal" flowers (looking to the sky). Also does the form from ´Kukenan´ not have these bristles. In an article from Andreas Fleischmann i have read that D. esmeraldae `Cerro Duida´ is also forming such nodding flowers. So, at least 2 Tepui Drosera are forming these flowers, but a lot of other Tepui Drosera are not having these flowers, very strange. Best regards, Dani
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Post by Brian Barnes on Oct 17, 2008 4:42:56 GMT -5
Dani, That IS very interesting indeed....Please keep us posted on what you find out about this anomaly! Happy Growing, Brian.
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