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Thread: World rarest plant species

  1. #25
    swords's Avatar
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    I believe Av8tor wants a Wollemi Pine but it's Encephalartos woodii who is the cycad that has no mate.

    E. woodii is considered extinct in the wild since the original clump of plants was taken from the wild, divided and all original divisions died in cultivation. But there are presumed to be at least 500 artificially propagated plants of E. woodii in cultivation since the plant seems to take to cuttings and creating offsets well though it's a slow procedure taking 5 years for a cutting to settle and begin creating offshoots. Tissue culture is being investigated but is complicated by obtaining bacteria free tissues This is paraphrased from the book The Cycads by Loren M Whitelock

  2. #26
    Hear the Call of Nepenthes carnivoure12's Avatar
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    Rafflesia anorldii also is the largest single flower in the world. Titan arum is commonly mistakenly called the largest flower. however Titan arum is the largest unbranched inflorescense meaning lots of flowers. and what looks like a a giant flower is really a modified leaf that protects the flowers.
    -Carnivoure12
    →Growlist

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    back2eight's Avatar
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    What about a ghost orchid, isn't that pretty rare?

  4. #28
    Aristoloingulamata Dexenthes's Avatar
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    Wow, this thread is awesome, now I have more plants to add to my twisted wishlist.
    LOOKING FOR: N. (argentii x bicalcarata) x {[(lingulata x edwardsiana) x (naga x hamata)] x [(klossii x undulatifolia) x (aristolochioides x rajah)]} Growlist: http://www.terraforums.com/forums/sh...d.php?t=124586

  5. #29
    swords's Avatar
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    Here's a link to the leafless mass of roots known as the american Ghost Orchid quite easily obtainable now thanks to TC
    I like small orchids that can be grown on sticks!

    http://en.wikipedia.org/wiki/Dendrophylax_lindenii


  6. #30
    Hear the Call of Nepenthes carnivoure12's Avatar
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    N. pitopangii, there was only one individual found in the entire area by stewart, he says it was probably a stray seed that germinated but the rest perished.
    -Carnivoure12
    →Growlist

  7. #31
    Let's positive thinking! seedjar's Avatar
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    Quote Originally Posted by swords View Post
    Rafflesias are similar to Hydnora in that they infect Tetrastigma vines and then shoot out these crazy flowers. Infact both these parasites are classed in the same super-order of Rafflesianae.
    Here's an interesting bit of trivia regarding Rafflesiaceae - they've recently been shown to be a clade in the Euphorbiaceae. (This probably doesn't mean jack to most of you, but swords and I both collect Euphorbs.)
    I just looked to see if those results also applied to Hydnora, because I thought it was related to Rafflesia, but it's not. I was surprised to find that it's in the Piperales, along with ginger and Indian pepper - apparently Aristolochia is the most closely related sibling genus.
    ~Joe
    o//~ Livin' like a bug ain't easy / My old clothes don't seem to fit me /
    I got little tiny bug feet / I don't really know what bugs eat /
    Don't want no one steppin' on me / Now I'm sympathizin' with fleas /
    Livin' like a bug ain't easy / Livin' like a bug ain't easy... o//~

  8. #32
    swords's Avatar
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    According to Rafflesia of the World they are/were classed in the same super-order I shall paraphrase page 4:

    "In terms of taxonomic position Takhtajan placed the super-order Rafflesianae (containing Rafflesiaceae and Hydnoraceae) between the sub-classes Magnoliidae and Ranunculidae. ...(description of years of botanical mischief up and down the order ladder)... Thorne places the super-order Rafflesiliflorae near the more primitive dicotyledons in the super-order Annoniflorae, which includes the Order Annonales and the family Aristolochiaceae."

    And again they are paired up in a list of parasitic plant families on page 6:
    entry # 3. Rafflesiaceae & Hydnoraceae

    Unfortunately that's the last mention of Hydnora in the book. Perhaps they aren't as related as they appear to me in this text.

    Bad book, I shall make it sit in the corner!

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