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Thread: U.jamesoniana

  1. #9

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    Hi Sean,

    Not to be too picky (I know, I know ... ), but U.reniformis, U.nephrophylla, U.humboldtii and U.nelumbifolia used to be classified under the Orchidioides section, but were reclassified by Peter Taylor in his fabulous monograph "The Genus Utricularia" (I can highly recommend it) as being in the new section "Iperua".

    The breakdown is as follows:

    Utricularia section Orchidioides:

    U. jamesoniana
    U.asplundii
    U.campbelliana
    U.quelchii
    U.buntingiana
    U.endresii
    U.alpina
    U.praetermissa
    U.unifolia


    Utricularia section Iperua:

    U.nelumbifolia
    U.reniformis
    U.geminiloba
    U.nephrophylla
    U.humboldtii


    (All taken from "The Genus Utricularia" by Peter Taylor,
    ISBN 0 947643 72 9)

    There's actually a nice story behind the name "Iperua": it actually means "beautiful flower" to the native Arawak Indians, and Utricularia humboldtii according to Taylor is their "beautiful flower" - brings a tear to your eye!

    Just thought this may interest all you Utricularia-philes!

    Oh, by the way Seb (as I mentioned on the CP UK forum) - fantastic photo, thanks for sharing it with us!
    Kind regards,

    Adam.
    Wales, UK [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]
    I'm mainly interested in Drosera, Dionaea & Aldrovanda, Hardy Orchids (esp Dactylorhiza), Arums and Ericas (Heaths/Heathers - European + S.African)

  2. #10

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    More than happy to be proven wrong

    Another reason why I really need to find a copy of Peter Taylors book!

    Makes sense that the newly created section contains the species you mention. The flowers all show similarities that the other species lack.

    Thanks for the information.

  3. #11

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    Ther is another obvious difference between plants in both sections. Those of section orchidoides usually grow in humid environments but at places where they never get permanently wet like on tree trunks or rock cliffs. They also have the tubers they use to survive during the dry seasons.
    Species in section Iperua grow in wet places and dont have tubers.

  4. #12

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    Thanks Sebastian,

    I have only ever grown U. alpina and knew this species had tubers. I didn't realise that all of the Orchidioides section produced tubers as well.

    Sean.

  5. #13

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    Hello my friends. Finally, here is the field trip report, hope you like it.

    U.jamesoniana field trip report

  6. #14

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    Congrats Sebas!! Cool report and great pics!

    Fernando Rivadavia

    P.S. In the Iperua section there is one species that does have tubers: U.geminioloba. And as for U.reniformis, it is NOT epiphytic!

  7. #15

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    A question on U. jamesoniana. Is the form that Sebastian found a typical flower colour or do the flowers show variation? (I know they will vary, but how much?)

    I had always imagined that the colour would be different than in Sebastians photos.

    Sean.

  8. #16
    BobZ's Avatar
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    The only other photo that I have found of U. jamesoniana is at
    http://www.omnisterra.com/botany/cp/...cula/isao7.htm

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