Friday Weird Sex Blogging - The Giant Stinkin' Phallus!

Well, this Friday Weird Sex Blogging is not going to be so unique. After all, Janet and Zuzu have already blogged about it, but who can resist a phallic-looking, rotten-meat smelling, fly-attracting flower! And it is not a B-grade movie on the sci-fi channel. This is real! The Titan Arum (Amorphophallus titanum), in all its 3m tall glory is about to start stinking up the greenhouse at the Brooklyn Botanical Garden (follow the flowering on the blog or watch the flowering web-cam here) :

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{First posted here]. Well, this Friday Weird Sex Blogging is not going to be so unique. After all, Janet and Zuzu have already blogged about it, but who can resist a phallic-looking, rotten-meat smelling, fly-attracting flower! And it is not a B-grade movie on the sci-fi channel. This is real!…
Brian O'Brien of Gustavus Adolphus College has sent along an important message for those of you who like big flowers that stink of rotting meat—they've got one. In 1993 I obtained seeds of the plant Amorphophallus titanum (common names: Titan Arum; Corpse Flower) from Dr. James Symon, who had…
Well, I can't smell it from here on the Left Coast, but those of you in nose-shot of the Brooklyn Botanic Garden may soon get to partake of the wonder that is the Amorphophallus titanum, aka "corpse flower". Yes, you guessed it, this fragrant bloom smells like a dead animal. Flies loooove it. If…
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We had one of these bloom here in Seattle a few years back. Hoo boy, did that stink! But it was damn cool nonetheless.

I'm guessing that the really bad smell is to attract flies or other scavengers to pollenate (correct me if I'm wrong), but I wonder if there's any particular selective advantage to the uhm, unique shape. Any botanists want to chime in? :)

You are right about the smell. The size may have something to do with the ability to produce a lot of stench and be it dipersed a long distance. The shape may be just the result of the way flowers develop when scaled to such size. I don't know, but shape may not have an adaptive value in itself and can be just a byproduct of evolution for size.