Jump to content
UltravioletPhotography

Phlox longifolia [Longleaf Phlox]


Andrea B.

Recommended Posts

Blum, A.G. (2013) Phlox longifolia Nuttall (Polemoniaceae) Longleaf Phlox. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...longleaf-phlox/

 

Mesa Verde National Park, Montezuma County, Colorado, USA

02 May 2013

Wildflower

Lat [N37°20'15.2"] Lon [W108°24'33.3"] Alt[approx2108]

 

Comment:

Key to identification of P. longifolia in southwestern Colorado it the white calyx membrane which forms a ridged or "keeled" appearance between the calyx lobes.

The small white area at the base of each petal becomes UV-dark, while the moderately UV-absorbing corolla shows some very narrow UV-dark striations.

 

Reference:

1. Lady Bird Johnson Wildflower Center (2013) Phlox longifolia. U. of Texas at Austin, Austin, TX. http://www.wildflowe...?id_plant=PHLO2

 

Equipment: [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor]

 

Visible Light [f/8 for 1/2500” @ ISO 400 in Sunlight with Baader UVIR-Block Filter]

phloxLongifoliaVisSun_050213MesaVerdeNPColo_10342orig_PN.jpg

 

Visible Light [f/7.1 for 1/1000” @ ISO 200 with Nikon Coolpix A]

Note white membrane between calyx lobes.

phloxLongifoliaVisSun_050213MesaVerdeNPColo_1117PnRes.jpg

 

Ultraviolet Light [f/8 for 1/160” @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

phloxLongifoliaUVBaadSB14_050213MesaVerdeNPColo_10351origCropRes.jpg

 

Ultraviolet Light [f/8 for 1/200” @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]

Step back from the screen for best effect. :)

phloxLongifoliaUVBaadSB14_050213MesaVerdeNPColo_10363origRes.jpg

Link to comment

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...