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UltravioletPhotography

Duchesnea indica [Indian Strawberry]


Andrea B.

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Blum, A.G. (2015) Duchesnea indica Focke (Rosaceae) Indian Strawberry. Flowers photographed in ultraviolet, visible and infrared light. http://www.ultraviol...nother-example/

 

Synonyms:

  • Fragaria indica Andr.
  • Potentilla indica (Andr.) T. Wolf
  • Mock Strawberry

Comment:

I find that the D. indica flower is easily confused with other Potentilla species, so the bractlets and leaf must be referenced and special attention paid to the relationship between sepals and underlying bractlets.

D. indica has been moved to Potentilla indica in some flora.

In Ultraviolet light, the flower has a UV-dark basal blotch on each petal and a dark center. The size of the dark spot can vary.

 

Reference:

1. New England Wild Flower Society (2015) Potentilla indica. Indian-strawberry. https://gobotany.new...entilla/indica/

 

 

SET 1

Middletown, New Jersey, USA

24, 25 May 2008

Wildflower

 

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

 

Visible Light [f/8 for 1/500" @ ISO-400 in Sunlight with Baader UVIR-Block Filter]

duchesneaIndicaVis042408wf_20733origpn.jpg

 

Ultraviolet Light [f/11 for 1.6" @ ISO-400 in Sunlight with Baader UV-Pass Filter]

duchesneaIndicaUV042408wf_20737pf.jpg

 

Visible Light [f/11 for 1/250" @ ISO-400 in Sunlight with Baader UVIR-Block Filter]

The underlying 3-toothed bractlets can be seen.

duchesneaIndicaVis042508wf_20936origpn01.jpg

 

Ultraviolet Light [f/11 for 2" @ ISO-400 in Sunlight with Baader UV-Pass Filter]

duchesneaIndicaUV042508wf_20940pfpn.jpg

 

SET 2

Middletown, New Jersey, USA

09 June 2008

Wildflower

 

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

 

Visible Light [f/11 for 1/250" @ ISO-400 in Sunlight with Baader UVIR-Block Filter]

duchesneaIndicaVis060908wf_22488origpn.jpg

 

Ultraviolet Light [f/11 for 1" @ ISO-400 in Sunlight with Baader UV-Pass Filter]

duchesneaIndicaUV060908wf_22489proof2.jpg

 

SET 3

Huber Woods Park, Middletown, New Jersey, USA

22 April 2010

Wildflower

 

Equipment [Nikon D200-broadband + Novoflex 35mm f/3.5 Noflexar]

 

Visible Light [f/9 for 1/60" @ ISO-400 with Nikon D3S + Nikon 60mm f/2.8G Micro-Nikkor]

The trifoliate leaf of P. indica can cause confusion with Fragraria.

duchesneaIndicaLeafVis051010huberWoodsMtNJ_7719origpn.jpg

 

Visible Light [f/11 for 1/90" @ ISO-400 in Sunlight with Baader UVIR-Block Filter]

duchesneaIndicaVis042210huberWoodsParkMt_40310proof.jpg

 

Ultraviolet Light [f/11 for 1/1.5" @ ISO-400 with Nichia 365nm UV-LED and Baader UV-Pass Filter]

The UV-dark patch is larger than usual on this specimen.

duchesneaIndicaUV365LED042210huberWoodsParkMt_40319pf.jpg

 

Infrared Light [f/11 for 1/60" @ ISO-400 in Sunlight with B+W 092 IR-Pass Filter]

duchesneaIndica092IR042210huberWoodsParkMt_40340proofpn.jpg

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