Flowers changing colour

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ralphrmartin
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Flowers changing colour

Post by ralphrmartin »

This picture of Aylosytera tarijensis nicely shows how flowers that have been open for a few days can change colour:
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A. tarijensis.jpg
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Ali Baba
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Re: Flowers changing colour

Post by Ali Baba »

The same colour transformation occurs with other cacti too, the one I notice most frequently., because the flowers last so long is Mammillaria senilis.
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Phil_SK
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Re: Flowers changing colour

Post by Phil_SK »

Cumulopuntia corotilla:
corotilla_triptych.jpg
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Re: Flowers changing colour

Post by edds »

That's a fantastic montage showing the changes of colour Phil. Thanks for posting.
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el48tel
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Re: Flowers changing colour

Post by el48tel »

That's one heck of a transformation
Endeavouring to grow Aylostera, Echinocereus, Echinopsis, Gymnocalycium, Matucana, Rebutia, and Sulcorebutia. Fallen out of love with Lithops and aggravated by Aeoniums.
Currently being wooed by Haworthia, attempting hybridisation, and enticed by Mesembs.
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ralphrmartin
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Re: Flowers changing colour

Post by ralphrmartin »

I also once goofed with an outdoor mesem (Lampranthus? Delosperma?) - having a white one, I bought a pink one, to go with it, only to find out they were the same, the white one's flowers turning pink after being open a few days...
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Re: Flowers changing colour

Post by Smel »

Hi Ralph,
I notice it most with things like Rebutia and Ayloera, solid full colour first day or so, but then they fade a bit, losing some of the colour.
Open your mind, but not too much, your brain might fall out !!
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ralphrmartin
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Re: Flowers changing colour

Post by ralphrmartin »

Indeed, Mel, I suppose fading is the obvious thing you would expect. Yet flowers turning pink from white or yellow is less intuitive...
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Re: Flowers changing colour

Post by SimonT »

This Rebutia seedling had small dark red flowers when they first opened and larger more orange red flowers when the flower opened on subsequent days. [Sorry my photo does not show the colour change very well but shows the two different flower sizes.] It looks like the stigma is open in the larger flower and not the smaller flower. The stamen also seem to change their positioning between the larger and smaller flowers. These types of changes are often thought to reduce the chance of self-hybridisation. So perhaps some of the flower colour changes observed may have more biological significance than it first appears?
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ralphrmartin
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Re: Flowers changing colour

Post by ralphrmartin »

Thanks Simon, interesting!
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