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The highly directional reflected light arises from the partially transparent, pigment-bearing epidermal layer, while a more diffused yellow colour is the result of scattering from the lower starch layer. This directionality of the light reflections causes the unusually intense gloss of the buttercup flower and the strong yellow reflection evident when holding the flower under the chin.<\/jats:p>","DOI":"10.1098\/rsif.2011.0759","type":"journal-article","created":{"date-parts":[[2011,12,14]],"date-time":"2011-12-14T05:43:41Z","timestamp":1323841421000},"page":"1295-1301","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":43,"title":["Directional scattering from the glossy flower of\n                    <i>Ranunculus<\/i>\n                    : how the buttercup lights up your chin"],"prefix":"10.1098","volume":"9","author":[{"given":"Silvia","family":"Vignolini","sequence":"first","affiliation":[{"name":"1","department":["Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meredith M.","family":"Thomas","sequence":"additional","affiliation":[{"name":"2","department":["Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mathias","family":"Kolle","sequence":"additional","affiliation":[{"name":"1","department":["Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tobias","family":"Wenzel","sequence":"additional","affiliation":[{"name":"1","department":["Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alice","family":"Rowland","sequence":"additional","affiliation":[{"name":"3","department":["Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3AB, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paula J.","family":"Rudall","sequence":"additional","affiliation":[{"name":"3","department":["Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3AB, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeremy J.","family":"Baumberg","sequence":"additional","affiliation":[{"name":"1","department":["Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Beverley J.","family":"Glover","sequence":"additional","affiliation":[{"name":"2","department":["Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ullrich","family":"Steiner","sequence":"additional","affiliation":[{"name":"1","department":["Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"175","published-online":{"date-parts":[[2011,12,14]]},"reference":[{"key":"2026022420314176900_RSIF20110759C1","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1515\/9783110806984.163","article-title":"Color vision: ecology and evolution in making the best of the photic environment","volume-title":"Color vision: perspectives from different disciplines","author":"Kevan,","year":"1998"},{"key":"2026022420314176900_RSIF20110759C2","doi-asserted-by":"publisher","first-page":"879","DOI":"10.1104\/pp.112.3.879","article-title":"Effects of epidermal cell shape and pigmentation on optical properties of Antirrhinum petals at visible and ultraviolet wavelengths","volume":"112","author":"Gorton,","year":"1996","journal-title":"Plant Physiol."},{"key":"2026022420314176900_RSIF20110759C3","doi-asserted-by":"publisher","first-page":"252","DOI":"10.1016\/1360-1385(96)20008-1","article-title":"Why are there so many and so few white flowers?","volume":"1","author":"Kevan,","year":"1996","journal-title":"Trends Plant Sci."},{"key":"2026022420314176900_RSIF20110759C4","doi-asserted-by":"publisher","first-page":"130","DOI":"10.1126\/science.1166256","article-title":"Floral iridescence, produced by diffractive optics, acts as a cue for animal pollinators","volume":"323","author":"Whitney,","year":"2009","journal-title":"Science"},{"key":"2026022420314176900_RSIF20110759C5","doi-asserted-by":"publisher","first-page":"45","DOI":"10.1007\/s11829-007-9002-7","article-title":"Mutations perturbing petal cell shape and anthocyanin synthesis influence bumblebee perception of Antirrhinum majus flower colour","volume":"1","author":"Dyer,","year":"2007","journal-title":"Artho.-Plant Interact."},{"key":"2026022420314176900_RSIF20110759C6","first-page":"115","article-title":"Ueber den Glanz der gelben Ranunculusbl\u00fcten","volume":"23","author":"M\u00f6bius,","year":"1885","journal-title":"Botan. 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