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Thread: South African Droserae

  1. #89
    noah's Avatar
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    Quote
    This being said, I will continue to give my "best guesses" on ID questions.[/QUOTE]

    Oh Good!

    Well, I do have one plant that I have questions about... [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]

    This plant is from seed I originally received as d. madagascariensis. I planted some, donating the rest of the seed to the LACPS seedbank. Ivan Snyder (the seedbank manager) said the seed looked to him like sp. rhodesia (Also madagascariensis 'rhodesia'?). Forbes ended up with the seed (hi Forbes&#33[img]http://www.**********.com/iB_html/non-cgi/emoticons/wink.gif[/img] and grew it to maturity. The resulting plant looks to be some kind of a nidiformis hybrid:

    [img]http://home.**********.com/noah/nidiformis.JPG[/img]
    [img]http://home.**********.com/noah/nidiformis2.JPG[/img]
    [img]http://home.**********.com/noah/nidiformisflower.JPG[/img]
    [img]http://home.**********.com/noah/nidiformistop.JPG[/img]

    What do you think? (this includes anyone out there with any educated opinions [img]http://www.**********.com/iB_html/non-cgi/emoticons/wink.gif[/img] )

    thanks,

    -noah

  2. #90

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    Looks like nidiformis to me. I have also received seeds of "D.madagascariensis" that turned out to be nidiformis. Seems to be a commonly misidentified plant.

  3. #91

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    Ahhhh, the problem again rears it's ugly head. I have spent MUCH time tracing this down.

    The plant in question is D. nidiformis, known also as D. "sp. Mageliesburg". It was marketed for close to a decade as D. magagascariensis by various nurseries all over the world and has turned up in nearly every seedbank exant. Several nurserymen wrote to me admitting the error when I made inquiry on the listserve.

    At this stage of the exponential spread, all that can be done is to address this topic over and over in as many public forums as possible. The problem will never go away.

    The true D. madagascariensis is a caulescent (stem forming) species. If you have D. "sp. Botswana" you have D. madagascariensis according to Dr. Vitor Olivera de Miranda who did analysis of the ribosomal DNA. (Pers. Comm.)

    This form of D. nidiformis stays green in strong light, and is over all larger than the form of D. nidiformis with more red pigment. The latter has been distributed by the ICPS seed bank.

    There is no evidence that this is a hybrid, per se, but if you have followed this thread, you have some idea of the intricate problems regarding S.A. species in general.

    This is a beautiful photo of the plant Noah. Well done!
    "Grow More, Share More"

  4. #92

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    Noah,

    Nice photos! The plant looks at least twice as good as it did last Saturday. Must be the water…

    Tamlin,

    Thanks for cutting through some of the haze that has been gathering around this plant – I often have a hard time _giving_ them away at LACPS meetings.

    I’ve found Noah’s plants to be about half the size of the aforementioned ICPS material, but otherwise the same. I’ve grown multiple plants (waaaay too many) to maturity from each source under identical conditions, and haven’t noticed any difference in coloration.

    I collected seed from D. madagascariensis ‘Botswana’ a few days ago, BTW.

  5. #93

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    Hi Forbes,

    Welcome to the forums. Regarding the 2 forms of nidiformis....I have noticed a distinctly different coloration under indentical conditions. I grow my plants in full sun out doors, maybe this accounts for it. I can tell them apart at a glance, despite the coloration differences. The plants from the ICPS seedbank all hold their lamina more erect, in effect the rosette is smaller in diameter. I am sure that there is individual variation, but generally I can see a real difference.

    Congratulations on flowering your plants of D. madagascariensis, by most accounts this is a fairly rare event!

    If you are overburdened with plants, I am sure Forum members would love these for the price of postage, and they might bring you some interesting trades on the trading forum ;-)
    "Grow More, Share More"

  6. #94

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    Hi Tamlin,

    Thanks. I am honored to take part in the festivities.

    I have also found the ICPS material to grow by a more erect pattern, but still have dimensions significantly larger then the mock madagascariensis, both in rosette diameter and overall leaf size. Kind of like the difference between D. petiolaris and D. dilatatopetiolaris (to compare apples to kumquats. I’ll have to try both plants in full sun; they have been growing a few inches from a shop light.

    Nearly all of the ‘Noah’s madagascariensis’ [img]http://www.**********.com/iB_html/non-cgi/emoticons/wink.gif[/img] plants have been distributed, but I will be disposing of some other plants and seeds here in the near future for the price of shipping.

  7. #95

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    I would be very interested in a seed sample to record and place in the herbarium files, should that event happen.
    "Grow More, Share More"

  8. #96

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    G'day all,

    I've just joined and have only had a chance to skim through the previous postings. Sorry for that.

    I grow D. admirabilis, coccicaulis, esterhuyseniae, sp. malwai, sp. South Africa, burkeana, madagascariensis, cuneifolia, galabripes, trinervia (white flowered), pauciflora, dielsiana (white and pink forms), natalensis, slackii, aliciae, nidiformis, ramentacea, cistiflora (red, white, violet, yellow flowered forms), D. glabripes x aliciae (this is the one that Triffid Park sells as glabripes) and a buch of hybrids.

    I had jacoby but discarded it as I was unsure of it's ID (silly)

    I'd be interested in trading any species especially with location details. Even common species.

    Thanks

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