A good few years back I read an interesting reference book on flower physiological adaptations and catering to pollinators
One particular chapter dealt with what was colloquially referred to as the Japanese Death Orchid (differing from the Japanese flower of Death - ‘Tsubaki’). What this flower does to achieve pollination is nothing short of terrifying genius and uncanny sadism. Essentially, it lures crawling insects or those with a very weak flight ability into a chamber using traditional means of combined chemical and tactile stimulants. The chamber itself is (I think) not too dissimilar from those constructed by some of our native Asclepiads here in Southern Africa (Genus Ceropegia for example), with the main point of ingress at the top and the inner walls having a strange glossy sheen to them, which serves to disorientate and confuse insects inside the chamber in much the same way as a hall of mirrors would for humans.
The major difference however, is that this Death Orchid does not keep its Pollinia in a hidden compartment abutting the rim of the gynophore of the flower with an inbuilt escape thereafter, but rather, it holds these Pollinia upon a gynostegia-esque pillar far out of reach of the insects below. This pillar has, at its base, a row of pollen receiving stigmas which serve as no comfort to the poor insects inside, and the effect of the “hall of mirrors” and the channeling architecture basically results in each insect in the chamber succumbing to starvation and dying. This happens to countless numbers of these insects until such a point where the literal floor of bodies rises high enough to meet the top of the holy pillar, upon which a VERY lucky insect will enter the chamber, get to the pollinia and oils he came after, and then promptly leave via a bridging between the pillar and another small egress on the side of the flower.
With the pollinia attached to this lucky survivor, the flower then banks on the prospect that that insect will be one of the first to claw at the stigma ridden base of the next flowers column (only for it to of course die for all its effort!)
This story has truly captivated me and left me pondering just how and why this orchid evolved such a pollination scheme
Keep in mind that I’m reciting a few paragraphs from a book I read a good 4 years ago, so there may be some hyperbole and missing connections in what I’ve relayed but thats the just of what I can remember
Can any naturalists (Japanese or otherwise) tell me at the least what this Orchids scientific or Genus name is? I’d also really love to learn more about the evolutionary history of this plant so if anyone could give me some articles or podcasts to follow up on, I’d appreciate it!
Feel free to discuss possible causal factors and pressures which you think could’ve influenced this plant