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Holcoglossum Sect. Sortylos

This is a discussion on Holcoglossum Sect. Sortylos within the Orchids of Other Genera IN BLOOM forums, part of the Orchid Photography category; At the moment a plant fro the section Sortylos is in bloom. It's related to ...

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  1. #1
    bdb22's Avatar
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    Default Holcoglossum Sect. Sortylos

    At the moment a plant fro the section Sortylos is in bloom. It's related to Holcoglossum flavescens but definitely not this species. I have several small species from this section.

    Here the pictures:




    I grow it mounted on cork in my cooler bedroom. Bright light but not full sun.

  2. #2
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    phytochrome is offline Senior Member
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    Very nice Phil! What temp is the room it is growing in?

  3. #3
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    What do you think that is, Phil? I have a plant labeled as H. flavescens but the flower and plant look very similar to two other species, especialy to H. rupestre. However, for sure, yours and mine are not H. sinicum, which I think it is difficult to grow or bloom.

  4. #4
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  5. #5
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    Its beautiful.

  6. #6
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    I love the bloom, Phil. Very nice.

    Cheers,
    BD

  7. #7
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    @Tom

    The pictures of H. rupestre which you can find at orchidspecies.com are made by me. My H. rupestre plant differs from the others by its rather long leaves.
    The above shown plant could be H. nujiangense or H. weixiense. I've contacted André Schuiteman and asked him for advice.

    I haven't seen a H. sinicum until now and I don't think that one of my plants could be one. I have about 5 plants which haven't bloomed yet and I don't know the real name.

  8. #8
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    Phil, H. sinicum is a pendant/hanging straight down growing little plant. The terete, 5-7" long, leaves are slightly thiner than H. flavescens but also suculent, so yours should not be H. sinicum.

  9. #9
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    I have all the literature to this genus. I've written the German wikipedia-article for this genus and for Gastrochilus. Once I'll have some free time I'll make an excel-sheet with all the specific differences between the species in this section.
    The pictures which can be found in the internet for H. sinicum never show the real species. H. sinicum has no keels or any projections on the surface of the lip (according to the line drawings by Christenson).

    @phytochrome
    The room is on the east-side of my flat and normally I don't heat it so much. About 15 °C at night and more than 20 °C at day. But this are the temperatures in the winter. In the summer it's no problem to grow them outside, but they need plenty of water during the summer. They tolerate also higher temperatures during summer. A friend of my is cultivating H. flavescens in his cold greenhouse together with his hardy orchids. The temperature in winter is about 4 °C. They are very cold resistant but they don't like it too hot.

  10. #10
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    Thanks for sharing...I need all the help I can get. I have learned so much already from you all, but there is so much more to learn. So far everything is very healthy, but we'll see.

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