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Holcoglossum subulifolium

This is a discussion on Holcoglossum subulifolium within the Orchids of Other Genera IN BLOOM forums, part of the Orchid Photography category; Lovely blooms here ! Please send some seedlings my way !!...

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  1. #11
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    Halloamey is offline Senior Member
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    Lovely blooms here ! Please send some seedlings my way !!

  2. #12
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    Great looking blooms! Good luck with the seedlings.

    Cheers,
    BD

  3. #13
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    Cheers everyone,

    I'm new to this forum but the genus Holcoglossum is one of my favourite. I have nearly 10 species from this genus. You can see some of my plants here:
    Holcoglossum

    @San

    Very nice Holcoglossum, but I doubt that this is a "pure" subulifolium. Maybe a cross with Holcoglossum auriculatum. The habit is to big for this species and the sepals are not showing the typical shape of the real H. subulifolium.

    The cross you made sounds very interesting!

  4. #14
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    Thanks friends for your comments!
    @Phil, I am still wondering if it's necessary to describe a new species as auriculatum(in 2005),as I told Mietek last time. Subulifolium was described many years ago. Just see my pictures here. In my eyes there is little difference between them. Mine is a wild plant from Hainnan,china. I am looking forward to hear your opinion.
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  5. #15
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    Hi San,

    I'm of the opinion that this are two distinct species.

    Here a picture of my H. auriculatum:

    and here a line-drawing from the original article where it has been described:


    Here you can see a line drawing of Holcoglossum subulifolium made by G. Seidenfaden:


    H. subulifolium has longer sepals and petals which are not denticulated/squarrose!!

    The callus of H. subulifolium has 5 keels. Here two pictures:



    Whereas H. auriculatum has only two broad keels.

    Furthermore the shape of the lip is different. It's very denticulated at the edge! H. subulifolium doesn't show this feature so much.

    Here a complete dissection of the flower of a real H. auriculatum:


    And here the line drawings for this species:


    The picture of my plant shows that is really a giant:

    It is potted in a 14 cm pot.


    As I said I think that you plant could be a hybrid. Maybe a natural one. The distribution range of H. auriculatum isn't known until now. It has been found in Yunnan, but H. subulifolium should occure there too!
    I have seen pictures of H. auriculatum plants from Vietnam e.g. The distribution range should be bigger as it is believed.

  6. #16
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    Thanks Phil for your detailed explanation and I am happy learning so much from you! My judgement is base on the description of H. subulifolium in Flora of China. As the description H. subulifolium has 3 keels(not 5), denticulated at the edge of the lip(it mentioned this),distributed in Hainan China, Burma, Vietnam, Thailand..we can see the differences and if you say they are two species I have to agree.

    ----- ---- subulifolium ------------------- auriculatum
    keels--- 3-(5,oringinal described)------- 2
    petals--- not denticulated ------------ denticulated


    Do you have the picture of your subulifolium in bloom? YOur plant is quite different too!

  7. #17
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    Unfortunately my H. subulifolium hasn't bloomed yet. And I think that I'll have to wait until next year. But here is a good photo

  8. #18
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    Thanks Phil! Such a discussion is really valuable!

  9. #19
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    Beautiful flower. Love the foliage also.

  10. #20
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    Very lovely blooms.We're now beginning to see a lot of native orchids from China. Thanks for posting.

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