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Nature 421, 34 (2 January 2003) | doi:10.1038/421034a

Obituary: Arthur T. Winfree (1942–2002)

Leon Glass

High above the roiling waves on the NaPali Coast of Kauai Island, Hawaii, Art Winfree is kneeling down and photographing the lichens inscribed on the rocks along the Kalalau trail. He had passed the same way several years before and had documented the spiral patterns of lichen growth.