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 Red spined Mamm carmenae. (rubra)

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MikeInOz



Number of posts : 22
Registration date : 2018-02-20

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PostSubject: Red spined Mamm carmenae. (rubra)   Red spined Mamm carmenae. (rubra) Icon_minitimeThu Sep 03, 2020 5:00 am

What is the correct name for this plant?
They call it carmenae but I'm not convinced. It's spines are much more  stiff than carmenae. If it's a hybrid, what species are involved?



Red spined Mamm carmenae. (rubra) P1130996

Red spined Mamm carmenae. (rubra) P1130998
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Chris43
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Chris43

Number of posts : 1782
Age : 77
Location : Chinnor, UK
Registration date : 2008-07-16

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PostSubject: Re: Red spined Mamm carmenae. (rubra)   Red spined Mamm carmenae. (rubra) Icon_minitimeThu Sep 03, 2020 10:21 am

Hi Mike,
The usual hybrids with carmenae are lauii, but those don't contribute red spines. I don't know what is used, but I wonder it could be elongata, another species with variable spine colour. It could just be that a nursery somewhere producing lots of plants for the retail market has come across the odd red spined plant and selectively propagated it into a cultivar strain.

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MikeInOz



Number of posts : 22
Registration date : 2018-02-20

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PostSubject: Re: Red spined Mamm carmenae. (rubra)   Red spined Mamm carmenae. (rubra) Icon_minitimeFri Sep 04, 2020 4:12 am

Thanks Chris. Yes lauii and I would suspect subducta is a a prime contender.

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Rohan41



Number of posts : 24
Registration date : 2017-10-27

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PostSubject: Re: Red spined Mamm carmenae. (rubra)   Red spined Mamm carmenae. (rubra) Icon_minitimeMon Oct 05, 2020 3:59 pm

I have held off ordering carminae red spined versions, I'm not sure if they exist in the wild and havent seen any with collection numbers attached. Could be a selection but the coarseness of the spines makes me wonder if it (and they) are hybrid.
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PostSubject: Re: Red spined Mamm carmenae. (rubra)   Red spined Mamm carmenae. (rubra) Icon_minitime

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