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Phal cornu-cervi various....

This is a discussion on Phal cornu-cervi various.... within the Phalaenopsis, Oncidium, & Intergenerics IN BLOOM forums, part of the Orchid Photography category; So, as promised in another thread yesterday, here are three supposed forms of Phal cornu-cervi ...

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  1. #1
    Dorsetman's Avatar
    Dorsetman is offline Senior Member
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    Default Phal cornu-cervi various....

    Name:  Phal.c-c-Sumartra.jpg
Views: 384
Size:  354.6 KBName:  Phal-c-c-4n.jpg
Views: 162
Size:  296.2 KBName:  Phal-c-c-no.jpg
Views: 156
Size:  388.1 KBName:  Phal-c-c,-3-types.jpg
Views: 131
Size:  267.0 KB

    So, as promised in another thread yesterday, here are three supposed forms of Phal cornu-cervi in my collection. The spotted and barred one is variety Sumatra - which may mean it is a form found in that place ; the lovely extremely glossy dark red one is a 4n form, and the white one was bought under the name "Phal cornu-cervi "red". Clearly it is not red and probably not cornu-ervi either. What it is, I don't know.

    I started growing species phals successfully, only last year. Here in UK , a greenhouse or equivalent is needed to grow any tropical or sub-tropical orchid, and my greenhouse conditions are set to suit Oncidiums, Cymbidiums, and a lot of other orchid groups, but all, I am sure, far too cool to suit phallys ( well, almost all phallys - there are two or three species which do grow cool ). So for years I hankered, and occasionally bought a plant only to see it fail. Then I had an idea of how to fix it. I built cabinets of polycarbonate or acrylic, in the corners of my greenhouse and gave extra heat inside them. On a cold winters night, the temperature in my garden ( in this probably warmest part of UK) may be down to zero or maybe minus 1 or 2, but in the greenhouse generally is 12, and in the enclosures - I have 3, one for each of three different genera - the temperature is 16, 18 or 20. The phallys are in the 20 enclosure.
    When I started with them, I read everything I could find and also applied my knowledge from over 50 years of growing orchids, and I have some in clay pots, but most in plastic pots. Just one or two on mounts. As you may see from the fourth pic above, I have some in a Perlag form, growing S/H,some in straight 100% sphagnum moss, and some in bark,perlite,charcoal etc mixtures. S/H probably wins the day as and when I repot.

    But ideas about the white one ? I wait to hear !

  2. #2
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    chemist is offline Senior Member
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    White one looks like phal bellina alba form

  3. #3
    ksriramkumar is offline Senior Member
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    Lovely collection. I concur with Svetlana. Last one looks like Pha.bellina f.alba

  4. #4
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    All quite nice! How do you heat those enclosures?

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    Beautiful shots Geoff and I love the glossiness of the flowers. So pretty!

  6. #6
    Dorsetman's Avatar
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    How do I heat them? Electric tubular heaters underneath a substage. They are about 20 watts per foot.
    5 heaters, 2 ft long, = 200watts, with a digital 'stat to control them. The enclosure is bench width, say 3 ft, about 5 ft long, and 20 inches or so high. I will add a pic or two, later.

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    I was going to say "violacea" for the third....

  8. #8
    Dorsetman's Avatar
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    Thank you all for your replies and suggestions. I have the Kew monograph in my library ( Christenson's book) . I find two diagnostic differences, on fragrance and petal width which enable me to nail it as P.violacea alba. First, petal width is over 1.3cm for bellina, under .7cm for violacea. My petal width is probably about 7mm.
    The fragrance is due to quite different oils being synthesized ( which also guarantees that they are indeed two species and not just different forms), P. bellina will be lemony from geraniol and linaloon ( never heard of that before ! ). P.violacea will be spicy from cinnamon alcohol and elemicin - neuther of which is present in bellina. Incidentally I did a blind test - asked my wife to smell the fragrance, and give me one word for it - she said "spicy".
    Last edited by Dorsetman; July 1st, 2016 at 04:37 PM.

  9. #9
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    I am not much into Phals, but I do like a few and these 3 will go on that like list.

  10. #10
    Azizan is offline Senior Member
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    LOVE THEM ALL! I normally would expect 4N flowers to be bigger, but I don't know any better.

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