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Leucanthemum x superbum [Shasta Daisy]

Conical Cells

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#1 Andrea B.

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Posted 29 December 2012 - 03:37

Blum, A.G. (2012) Leucanthemum x superbum (Bergmans ex J.W.Ingram) D.H. Kent (Asteraceae) Shasta Daisy. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...e-shasta-daisy/

Middletown, New Jersey, USA
03 September 2007
Cultivar in home garden

  • Chrysanthemum maximum
  • Chrysanthemum x superbum
In the ultraviolet photo, note the increased amount of surface detail brought out by the shortwave ultraviolet light. In the 100% crop the raking light brings out the epidermal cell structure on the UV-dark corolla showing the conical cells, which in this case are rectangular and slightly domed.1

1. Whitney et. al. (2011) Why do so many petals have conical epidermal cells? Annals of Botany, http://aob.oxfordjou...ob.mcr065.full.

Equipment [Nikon D200-broadband + Nikon 105mm f/4.5UV-Nikkor]

Visible Light [f/16 for 1/15" @ISO400 in Sunlight with Baader UVIR-Block Filter]
Attached Image: shastaVis090307wf_19376proofPnCrop.jpg

Ultraviolet Light [f/16 for 6" @ISO400 in Sunlight with Baader UV-Pass Filter]
Attached Image: shastaUV090307wf_19381proofPnCrop.jpg

Ultraviolet Light [Unresized crop from preceding photo.]
Attached Image: shastaUV090307wf_19381proofPnCrop100.jpg
Andrea G. Blum
Often found hanging out with flowers & bees.

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