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Jumellea longivaginans

Discussion in 'Orchid Species' started by leo, Mar 9, 2015.

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  1. leo

    leo African orchids only :-)

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    Recently, I got this plant labelled as Jumellea majalis, a species from Madagascar of which there is no picture around on the internet except for a photo of a herbarium specimen. Now that the flowers have opened it became clear that it is not majalis, so I started investigating and with the help of the data on Jumelleas (measurements of plant and flower parts) in Stewart's "Angraecoid Orchids" I came up with Jumellea longivaginans. This is also a species from Madagascar of which there is equally no photo available in the whole wide web. After searching for quite a while, I found a herbarium sheet of the type specimen of J. longivaginans, and the flowers are so distinct, there is not much doubt.
    The plant consists of several erect stems about 30-40cm long covered with leaves. The flowers sit on fairly long pedicels with three large bracts. The sepals and petals are 20-25mm long and look like any other Jumellea. The most distinctive feature is the spur, which is in total about 10cm long. On the first 30-40mm, the spur is curved, parallel to the ovary, greenish-white and has a flat to oval cross section. Lower down, the spur becomes round, bronze in colour and curly.

    This species has quickly become one of my most favoured Angraecoids!

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    Kipper, gg68, Afriorchids and 3 others like this.
  2. wpinnix

    wpinnix William Pinnix

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    Wow, that is amazing! What culture conditions do you give it? For frame of reference, how tall is the plant pictured?
     
  3. sam1147

    sam1147 sam1147

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    Wonderful
     
  4. leo

    leo African orchids only :-)

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    Sorry, forgot to mention: When I got it, it was potted in a bark mix with styrofoam at the base of the pot. I removed everything, bark and styrofoam and put it in a slightly bigger pot with very coarse (20-30cm pieces, no fines) pine bark as I do with all my potted Angraecoids. Temperatures a never below 14°C, humidity in my greenhouse is usually around 80-90%. It stands just at the window, but with no direct sun light, except for late afternoons. I spray once or twice a day with ~400µS (rainwater with normal multipurpose fertilizer. Since I don't have it for a long time yet, I will have to see how it develops - no idea if it needs a rest or if it likes more or less light...

    The whole plant is about 30-40cm tall (is that somewhat more than one foot?)
     
  5. leo

    leo African orchids only :-)

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    By the way, here is the link to the Paris herbarium entry for this species:

    Fiche Taxon
     
  6. Tom-DE

    Tom-DE Well-Known Member Supporting Member

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    Nice looking plant!
     
  7. pontupo

    pontupo Member

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    Incredible!
     
  8. juanriog

    juanriog Barcelona, Spain. Inter GH.

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    It looks great. and very interesting searching..
    congrats.
     
  9. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    What a great species! I really like jumelleas and this would be close to the top of the list.
     
  10. gg68

    gg68 Angraecoid addict

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    Wow Leo, what an amazing species!!!
    If one day a piece falls.....:D
     
  11. leo

    leo African orchids only :-)

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    Of course, once the flowers fall off, I will send them to you :p

    Found this yesterday:

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    Most of the flowers now overflow with nectar. So, the pollinating moth does not need to get right to the end of that curled spur, which I imagine would be quite an effort...
     
    juanriog likes this.
  12. speciosa

    speciosa Member

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    Wow - that is one incredible angraecoid - I only hope a mistake that wonderful was made with the two mini Jumellea's I imported and am growing in terraria. Just wonderful - the 12" stature is also just the right size! Nice growing, it seems super-happy...
     
  13. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

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    WOW I can't believe I missed this - wonderful and amazing! Love that curly spur - I've never seen that in jumellea before!