Optical structure and function of the white filamentary hair covering the edelweiss bracts.

@article{Vigneron2005OpticalSA,
  title={Optical structure and function of the white filamentary hair covering the edelweiss bracts.},
  author={Jean-Pol Vigneron and Marie Rassart and Zofia V{\'e}rtesy and Kriszti{\'a}n Kert{\'e}sz and Michael Sarrazin and L{\'a}szl{\'o} P{\'e}ter Bir{\'o} and Damien Ertz and Virginie Lousse},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2005},
  volume={71 1 Pt 1},
  pages={
          011906
        }
}
The optical properties of the inflorescence of the high-altitude Leontopodium nivale subsp. alpinum (edelweiss) is investigated, in relation with its submicrometer structure, as determined by scanning electron microscopy. The filaments forming the hair layer have been found to exhibit an internal structure which may be one of the few examples of a photonic structure found in a plant. Measurements of light transmission through a self-supported layer of hair pads taken from the bracts supports… 

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