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 Albilanata vs. supertexta...

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mmartic



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PostSubject: Albilanata vs. supertexta...   Mon Nov 16, 2015 7:01 am

Are there any easy and clear marks to separate and identify Mamm. albilanata (especialy ssp oaxacana) from mamm. supertexta?!? I have a few plants very similar (and bought without labels) and I'm always confused with them Sad
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Chris43
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PostSubject: Re: Albilanata vs. supertexta...   Mon Nov 16, 2015 1:38 pm

I agree it can be difficult, both make woolly white spined plants. Some forms can be more easily separated but with some, I must admit to being stumped.

According to the descriptions, albilanata oaxacana is to 12cm tall, 13 to 27 radial spines, 1-6 central spines 4 to 7mm long, tipped brown. supertexta is similarly tall, 16-18 radial spines, and 0 to 2 central spines, short, 3-5mm only and tipped yellow to black.

Clearly they overlap in pure numeric terms, and while the supertexta forms which have no central spines, or only 2 very short ones, are relatively easy to separate from the rest, some forms are just similar to albilanata. The ssp. oaxacana includes quite a number of obsoleted species names, and some of these have a distinct appearance, but the botanists say they are the same.

I sometimes wonder what a DNA analysis would say about these? Their distribution areas overlap to some degree. Is there really a difference? Or is it that because supertexta is the older name that they have been left un-lumped?

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mmartic



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PostSubject: Re: Albilanata vs. supertexta...   Tue Nov 17, 2015 6:25 am

Thank's Chris. I also found somewhere that alilanata's flower are "very small" comparing to supertexta's "small". But most of the plant's I can see on the net are almost identical... I'll wait for my plants to grow more and flower more so maybe I'm gonna get some differences.
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» Albilanata vs. supertexta...
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