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Bulbophyllum garupinum and decurviscapum

Discussion in 'Orchid Culture' started by Raven, May 18, 2022.

  1. Raven

    Raven Well-Known Member

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    Just received divisions of these uncommon bulbos from Malaysia. Vendor said they are cool-intermediate growing, however, IOSPE lists garupinum coming from very low elevations in PNG and decurviscapum coming from Borneo at "sea level to 1000 m". There is literally no information on growing either species so I wonder if anybody has ever seen them in orchid collections? Please, HELP!
     
  2. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    I looked them up on KEW. Bulbo. garupinum is a synonym so that may get you some information. The other is a valid species name.


    Screen Shot 2022-05-18 at 3.39.11 PM.png Screen Shot 2022-05-18 at 3.38.13 PM.png
     
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  3. Raven

    Raven Well-Known Member

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    Thank you, Marni.
    I found out that B. decurviscapum is grown by growers in lowland Borneo just outdoors meaning that it is probably a warm to hot grower. still trying to find info on B. garupinum / infuntibuliforme
     
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  4. Chuck-NH

    Chuck-NH Well-Known Member

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    I grew garupinum for about three years in a clay pot with NZ Sphagnum in int/cool conditions. It grew fairly well, so this past year I mounted it. Most Bulbos establish better for me in a small pot with NZ Sphagnum but grow better long term when mounted…especially smaller growers from the PNG vicinity. In this case, garupinum died this past winter. One leaf after the other quickly turning yellow and falling off…reminiscent of what happens to a warm grower in a cool greenhouse . I had picked this up thinking int/cool, but everything I have read since suggests warm to hot. I did see the Orchids of New Guinea website (generally very accurate) lists it (under the Kew accepted name) as being found from 3 - 1900 meters, so would think int/cool was possible…but then they describe as a warm growing epiphyte.
     
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  5. Raven

    Raven Well-Known Member

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    Thanks, Chuck.
    Looks like I have to keep it on the warmer side of intermediate.