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Dockrillia striolata comparison (maybe D. mortii?)

Discussion in 'Orchid Identification Section' started by KellyW, Jul 19, 2015.

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  1. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

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    Any Dockrillia experts out there? I have to admit I haven't spent any time researching this yet so just wanted to throw it out there.

    I have three plants all labelled as Dockrillia striolata / Dendrobium striolatum. Here are all three. They are from 3 different sources. The one on the left and in the center look similar and also look like on-line photos so I am assuming they are correctly labelled. The one on the right has a completely different form, branching stems and numerous air roots, thinner roots and leaves, more prone to growing pendulous.
    Dock trio-900.jpg

    Here is the one I am reasonably certain to be D. striolata. There are masses of short roots and the leaves are more robust, relative to the other. This is the only of the 3 that has flowered for me so far. Here is a post of it Dockrillia striolata | OrchidsForum.com
    Dock short-900.jpg

    Here is the one in question. The roots are much longer and thinner and there are numerous air roots. The leaves are thinner but of similar length. There is more branching and the plant in general is less robust.
    Dock long-900.jpg

    So, I have 2 questions.
    Has anyone noticed this much intraspecific variation for this species?
    If you think it is not D. striolata do you have any suggestions?
     
  2. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

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    Here is a side-by-side comparison
    Dock duo-900.jpg
     
  3. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

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    Does anyone grow Dockrillia mortii? I'm wondering if the one on the right could be mortii?