ONE OR MORE

Three beetles arrived carrying pollen from flowers no search had found.



The orchid Disa forficaria went unrecorded for fifty years. In 2016 a single plant was found, the only one known. It offers no nectar. Its scent draws male longhorn beetles, which try to mate with the flower and leave with its pollen fastened under the thorax. That plant was last seen above ground in early 2019. In 2020, at lures scented with a lab-made copy of the flower's molecule, three males arrived carrying fresh pollen of the species. The flower's deception had become evidence: one or more other plants still existed.



ONE OR MORE turns this study (Cohen et al., Current Biology, 2021) into five interactive plates, four minutes long, in cyanotype blue: white pen lines, with yellow kept for pollen alone. The reasoning happens in the visitor's hands. Turn a beetle over to find the pollen his shadow hides. Turn the scent molecule against its mirror image: no rotation makes them coincide, and modeled prints cannot tell them apart, yet in the field eleven beetles came to one form and two to the other. Lay a beetle on the flower and see how closely his body fits it. Slide a DNA barcode into register, set the dates side by side, then try to give each beetle its own plant, and see why three carriers mean at least one other plant, not necessarily three.



Each claim is tagged: Observed, what the study reports; Modeled, what the piece reconstructs; Interpreted, its own reading. A Proof panel tests the plates' claims in the browser and names its sources. The piece works on a phone, with touch or keyboard; sound is optional.



The last plate is an exposure without a map. Look closer, up to sixty times, and it never resolves into a place, only into paper: where the pollen came from, the evidence does not say; where the known plant grew, the plate keeps quiet. The title is the smallest number the evidence allows. You did not find the flower. You found a lower bound.