November 2015 - Genus of the Month - Small Opuntias

January 2017 - Genus of the Month - Lepismium
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MikeT
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by MikeT »

Here's one from a previous year, Pterocactus tuberosus
Pterocactus tuberosus.JPG
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Liz M
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Liz M »

Very jealous of your flower Mike, it's beautiful.
Can anyone tell me what the following plant is. I thought it was Austrocylindropuntia pachypus, then I saw Phil's Cylindropuntia sphaerica and now I'm not sure.
Austrocylindropuntia0001.jpg
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RAYWOODBRIDGE
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by RAYWOODBRIDGE »

Liz; looks like A. pachypus growing from a rooted flower pod.

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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Liz M »

Hi Ray, thanks for that. I have wondered for some time was it is.
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

I disagree; it looks more like C. sphaerica to me.
Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

Maihueniopsis glomerata, in the narrower sense, is centred on western San Juan and NW Mendoza.
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Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

Further north, around Salta and Jujuy, is M. molfinoi (aka M. glomerata ssp hypogaea).
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Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

And over the Andes on the Chile side are some M. glomerata types that are increasingly being recognised as good species again.
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

M. ovata seems to straddle the Andes in both Argentina and Chile, between(ish) Mendoza and Santiago.
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Re: November 2015 - Genus of the Month - Small Opuntias

Post by Phil_SK »

Much, much further south, in Chubut and Santa Cruz is M. darwinii, which can just about be grown on a rockery in the UK with a bit of luck.
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M. platyacantha (no pictures) and M. hickenii (below) are both attractively spined.
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Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
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