I have a plant that I got from Rene with the following on the label anyone know anymore about it
Pterocactus spec.nova
NEUQUEN 700m BAJADA DEL AGRO
Pterocactus spec.nova
- Chris in Leeds
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Pterocactus spec.nova
Chris
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Interested in - TURBINICARPUS (Always looking for plants I don't have)
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- Tony R
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Re: Pterocactus spec.nova
Tony Roberts
Treasurer, Haworthia Society
Chairman, Tephrocactus Study Group
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Kent
(Gasteria, Mammillaria, small Opuntia, Cleistocactus and Sempervivum are my current special interests)
Treasurer, Haworthia Society
Chairman, Tephrocactus Study Group
Moderator, BCSS Forum
Kent
(Gasteria, Mammillaria, small Opuntia, Cleistocactus and Sempervivum are my current special interests)
- Chris in Leeds
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Re: Pterocactus spec.nova
I did wonder if it was there plant but as there wasn’t a collection number
Thanks Tony I will update the label
Thanks Tony I will update the label
Chris
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- Phil_SK
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Re: Pterocactus spec.nova
There are records in Ralph's database from Bajada del Agrio for P. valentinii and P. fischeri as well as a couple of 'sp.'. If you look at the distribution maps in Elisabeth & Norbert's book, P. tuberosus, P. neuquensis and possibly P. araucanus could all be from here, though it's difficult to be sure due to the map resolution.
In the TSG journal Tephrocactus (2011, 17(1), 12) there is mention of a "Pterocactus spec. nova JL 101 WG 471 Neuquen 700m High Bajada del Agno" [sic] and JL101 is listed in Ralph's database as 'sp.' collected in 1983 but elsewhere in Tephrocactus (2003, 9(4), 600) as P. araucanus. I think it's likely that this is your plant as René had given it a WG number.
In their description of P. neuquensis, E&N recognise that plants of their new species have been in cultivation for a long time as P. araucanus so Lambert's plant could be misidentified.
Has your plant flowered? Assuming P. tuberosus, P. valentinii and P. fischeri can be ruled out then the position of the flower on the stem would resolve the plants identity.
In the TSG journal Tephrocactus (2011, 17(1), 12) there is mention of a "Pterocactus spec. nova JL 101 WG 471 Neuquen 700m High Bajada del Agno" [sic] and JL101 is listed in Ralph's database as 'sp.' collected in 1983 but elsewhere in Tephrocactus (2003, 9(4), 600) as P. araucanus. I think it's likely that this is your plant as René had given it a WG number.
In their description of P. neuquensis, E&N recognise that plants of their new species have been in cultivation for a long time as P. araucanus so Lambert's plant could be misidentified.
Has your plant flowered? Assuming P. tuberosus, P. valentinii and P. fischeri can be ruled out then the position of the flower on the stem would resolve the plants identity.
Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
- Phil_SK
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Re: Pterocactus spec.nova
It dawned on me later that Lambert might've illustrated JL101 in his book, and he did. Is this your plant? https://www.cactuspro.com/lecture/Lambe ... 61.en.html
Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
Re: Pterocactus spec.nova
Hello,
Chris, a picture of your plant would help to solve the problem.
We have been around Bajada del Agrio several times and all Pterocacti that we found there were either P. valentinii or P. fischeri. We have never seen P. neuquensis or P. tuberosus in that area. The most northern distribution of P. araucanus that we know is more than 50 km south of Zapala, i.e. more than 100 km south of Bajada del Agrio. Thus P. araucanus is highly improbable.
The picture of JL 101 shows Pterocactus valentinii.
Norbert
Chris, a picture of your plant would help to solve the problem.
We have been around Bajada del Agrio several times and all Pterocacti that we found there were either P. valentinii or P. fischeri. We have never seen P. neuquensis or P. tuberosus in that area. The most northern distribution of P. araucanus that we know is more than 50 km south of Zapala, i.e. more than 100 km south of Bajada del Agrio. Thus P. araucanus is highly improbable.
The picture of JL 101 shows Pterocactus valentinii.
Norbert
- Chris in Leeds
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Re: Pterocactus spec.nova
At the time I got two or three cuttings of both the plant you mention Phil and I potted them up separately but all I can find for definite is the two in the picture with Rene’s labels in I have two plant near that look similar but the labels have faded
My plants have been a bit neglected for the last 3/4 years due to family health issuesChris
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BCSS MEMBER SINCE 2000 (NATIONAL SHOW)
FORUM MEMBER SINCE JUNE 2006
Interested in - TURBINICARPUS (Always looking for plants I don't have)
TEPHROCACTUS AND RELATED SPECIES
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Re: Pterocactus spec.nova
OK! Neither P. araucanus nor P. neuquensis - looks very much like P. valentinii.
Norbert
Norbert
- Chris in Leeds
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Re: Pterocactus spec.nova
These are the two other plants I mentioned they look the the same to me but I’m no expert
Chris
BCSS MEMBER SINCE 2000 (NATIONAL SHOW)
FORUM MEMBER SINCE JUNE 2006
Interested in - TURBINICARPUS (Always looking for plants I don't have)
TEPHROCACTUS AND RELATED SPECIES
http://www.leeds.bcss.org.uk/ http://www.zone3.bcss.org.uk/
BCSS MEMBER SINCE 2000 (NATIONAL SHOW)
FORUM MEMBER SINCE JUNE 2006
Interested in - TURBINICARPUS (Always looking for plants I don't have)
TEPHROCACTUS AND RELATED SPECIES
http://www.leeds.bcss.org.uk/ http://www.zone3.bcss.org.uk/