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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

Synonyms:
  • Chrysanthemum maximum
  • Chrysanthemum x superbum
Comment:
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

Reference:
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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