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Thread: D. burmannii flower puzzle

  1. #1
    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
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    I originally had one D. burmannii plant. It grew well, got quite large, produced several flower scapes, made seed and eventually died off. I collected seed and also there were volunteers in the pot so I transplanted several of those and now have a pot bursting with about 5 burmanniis. They are all starting to produce scapes in various stages.

    The largest scape and a couple of others have matured and are setting seed. When I went to check on the seed I noticed something. The largest plant had a large flower scape with WHITE flowers (made sure by looking through a magnifying glass) and the spent flowers were light brown. All the other plants that had (or have) flowers are PINK. Clearly pink..even the spent flowers are pink.

    So...my question is...is it unusual to get both white and pink flowers out of the same batch of seed from one single plant? Is one color more typical than the other? Unfortunately I do not recall the flower color of the original burmanii plant. Would seed from the white flowered scape give white flowered plants and vice versa with the pink?

    All the plants are definitely D. burmannii and I had no sessilifolia at the time the original plant flowered.

    If anyone has any comments I'd sure appreciate it. Thanks!

    Suzanne
    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

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    Tropical Fish Enthusiast jimscott's Avatar
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    This may a comparison between "apples & oranges" but I've noticed a similar phenomenon observing Johnny Jump Up plants. If you look at the flower color on one plant, let's say one of those purple & yellow ones, you will some have darker purple than others. In other words, the same plant yields different variations of color. Now that's phenotype. There's no telling what the genotype is programmed to do. Just a thought.

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    D.burmannii don't usually have pink flowers, in fact as afar as I know it is extremely rare. On the other hand D.sessilifolia does have lilac-pink flowers. These 2 species are VERY closely related, although geographically very distant. They are interfertile and the hybrids are fertile too. You don't by any chance have D.sessilifolia around too, do you?

    Take Care,
    Fernando Rivadavia

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    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
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    Hi Fernando

    Thanks for replying.

    At the time my original burmannii flowered and set seed, I did not have sessilifolia in my collection. I had only the one D. burmannii and all the seed/plantlets that I got came from the single plant. The pot of 5 burmanniis I have now all grew from seed from the one original plant. Now all the seedlings are maturing and producing flower scapes. I assumed that the pink was normal because I had more pink flowers than white. The only plant with the white flowers was the largest, most mature plant. The others are somewhat smaller but all are producing scapes now and there were perhaps 3-5 pink flowered scapes. The pink color is a strong pink...not like a pale lilac.

    My sessilifolia are fairly recent acquisitions (didn't have when the original burmannii set scapes). Also the sessilifolias are grown separately from the burmanniis. I knew they were closely related and look similar but all the ones I have now labeled D. burmannii have to be that because the seed all came from the one plant.

    I do have a couple of photos of the closed flowers on the scapes to show the color difference. I can also take a photo of the pot of plants. The flower photos aren't good quality...my camera can't take clear pictures of small objects but you can see the color difference.

    I think the original D. burmannii photo is posted on Patrick's CPGallery in the Sundew Gallery...a single plant with an unfurling flower scape.

    I'll try to get the pics posted and a pic of the pot of plants.

    Thanks!
    Suzanne



    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

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    Great, I'll keep my eyes open for the pics, can't wait!

    Fernando Rivadavia

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    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
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    OK...got the pics. Excuse the quality but I think you can see the color difference.


    This is the white flower scape. Hard to tell they are white but this is the one I used a magnifying glass on a partially opened bud to check the color...definitely white.


    This is one of the pink scapes...flowers bright pink. Even the stem has a pink cast unlike the white scape. I harvested some of the lower flower caps that had set seed. All seed I collected was separated into "white flower" and "pink flower" envelopes.


    This is the 4" pot of 5 plants...all from the one parent plant (see below). The top left plant is the one with the white scape. I think the top right and lower center plants are the ones with the pink flowers.


    This is last year's one single D. burmannii parent (prior to any D. sessilifolia being around).

    Hope this helps. Any explanation? Genetic fluke?

    Suzanne



    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

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    Tropical Fish Enthusiast jimscott's Avatar
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    Cool whip! So the plants are `1.75" in diameter? And they are under a year old?

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    Sean's Ponds's Avatar
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    They are awefully pretty lil plants Suzanne.

    Would these happen to be the blooming plants you spoke of in your PM to me?

    Cheers,
    Sean

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