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Ascocentrum aurantiacum and Dendrobium armeniaca Orange blooms in my garden

This is a discussion on Ascocentrum aurantiacum and Dendrobium armeniaca Orange blooms in my garden within the Cattleyas, Vandas, Dendrobiums IN BLOOM forums, part of the Orchid Photography category; According to Dr. Christenson description, I think, the specimen from Philippines has yellow orange flowers ...

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  1. #11
    PhilsDC is offline Senior Member
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    According to Dr. Christenson description, I think, the specimen from Philippines has yellow orange flowers unlike its counterpart which is dark orange and thats what they identify this as subspecies.

    Here in Mindanao, I found Ascocentrum aurantiacum subsp. philippinense in Bukidnon but I didn't bother to gather it because I have 15 specimens in my garden which is enough as for my botanical specimen.

    Jim Cootes will provide the brief details about this species if he does.

    With regards to Dendrobium armeniaca, Coelandria armeniaca is validly published name. But as for my own interests and other collector's interests, we consider them as Dendrobium in different subgenus or section. Taxonomy is one of the most complex to study. That's why until this time, there is ongoing species reclassification.

  2. #12
    blrnut is offline Senior Member
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  3. #13
    PhilsDC is offline Senior Member
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    Quote Originally Posted by ManilaByNight View Post
    I like the Dendrobium armeniaca. I sure would love to have one too. I'm confused .... is this different from Den. bullelianum or is this one and the same species?
    They are different species. Dendrobium bullenianum has black drooping cane, flower spur is curved and semi-round and it occurs throughout the Philippines and also in Mainland Southeast Asia. Coelandria (Dendrobium) armeniaca has white erected canes, flower spur is straight flat and found endemic to Mindanao island. Recently, one of my sources told me that they have gathered an alba form (White) of Coelandria (Dendrobium) armeniaca but I doubt because I haven't seen the plant.

  4. #14
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    very nice plants, and beautiful shots.
    P.

  5. #15
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    Hi Derek,

    I have recently transferred Coelandria armeniaca M.A. Clements and Cootes back to Dendrobium. This was done because I had hoped to have the new edition of my book published this year, but this will not happen now. There are a number of species related to Coelandria armeniaca that need to be transferred to that genus but I do not want to do the new combinations when another author has done all the work.

    So that my book would look organised properly, it was much easier to give Coelandria armeniaca a new epithet.

    The epithet of armeniacum could not be used, because that epithet was already taken, for a species from New Guinea. A new epithet had then to be found for Coelandria armeniaca.

    The species is now named as Dendrobium tiongii. This was published in Volume 75, number 5 of the Australian Orchid Review on page 58. The specific epithet honours my good friend Dr. George Tiong.

    All the best,

    Jim Cootes
    Author
    The Orchids of the Philippines
    Times Editions, Singapore, 2001

  6. #16
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    Ephemera is offline Michael
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    Whatever the confusion, I love the second one especially! Are they fragrant too?

    Cheers, Michael

  7. #17
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    Hi Michael,

    There is no discernible perfume.

    Jim Cootes

  8. #18
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    Wow! I'm learning more and more each day on this forum. Thanks!

  9. #19
    PhilsDC is offline Senior Member
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    Thanks for the information Jim.

    Hope the book be published this year.

    Regardless of its names, it is important to know that Philippines still diverse and has numerous species discovered this decade despite of deforestation in all parts of the country.

    By the way, my only Trichoglottis bataanensis and Trichoglottis mindanensis died off due to heavy rains in Bukidnon and also it was heavily infested by black orchid weevils. Got no more chance to acquire this Trichoglottis bataanensis specimen again.

  10. #20
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    Both of them are so lovely and warm !! Congrats on blooming these beauties !

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