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Leucochrysum albicans [Hoary Sunray]

Fluorescence
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#1 DaveO

    Aussie Bunyip

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  • 743 posts
  • Location: Maldon, Victoria, Australia

Posted 20 January 2020 - 00:37

Oldfield, D. 2020. Leucochrysum albicans (A. Cunn.) Paul G. Wilson (Asteraceae) Hoary Sunray. Flowers photographed in visible and ultraviolet light. https://www.ultravio...__fromsearch__1

Maldon, Victoria, Australia
15 October 2019
Australian Native Wildflower as Garden Specimen

Synonyms:
Helichrysum albicans A. Cunn.
Elichrysum albicans A. Cunn.
Helipterum albicans (A. Cunn.) DC.
Argyrocome albicans (A. Cunn.) Kuntze
Rosccardia albicans (A. Cunn.) Voss

Comment
Leucochrysum albicans is endemic to Queensland, New South Wales, Victoria and Tasmania. The flower heads retain their colour when dried. The yellow bracts suggest that this specimen was subspecies albicans variety albicans. The plant was grown by a Central Victorian plant nursery from seed collected near Chewton, Victoria.

Visible Light: Nikon D750 Full Spectrum Modification, Nikon Rayfact PF10545 MF-UV 105 mm f/4.5 lens, Metz 15 MS-1 flash, 1/200 s @ f/16 ISO 200, Baader UV/IR Cut Filter.
Attached Image: Leucochrysum_albicans_Vis.jpg
Image Reference: DO66397

Ultraviolet Light: Nikon D750 Full Spectrum Modification, Nikon Rayfact PF10545 MF-UV 105 mm f/4.5 lens, Nissin Di866 Mark II flash, 1/200s @ f/16 ISO 200, Baader UV-Pass Filter.
Attached Image: Leucochrysum_albicans_UV.jpg
Image Reference: DO66400

Ultraviolet Induced Visible Fluorescence: Nikon D750 Full Spectrum Modification, Nikon Rayfact PF10545 MF-UV 105 mm f/4.5 lens with Baader UV/IR Cut Filter, Nichia NCSU033A UV-LED with Baader UV-Pass Filter, 10.0 s @ f/16 ISO 1600.
Attached Image: Leucochrysum_albicans_UVIVFL.jpg
Image Reference: DO66402

Reference:
Wilson, Paul G. (1992) The Classification of Australian species currently included in Helipterum and related genera (Asteraceae: Gnaphalieae) Part 2: Leucochrysum, Nuytsia 8 (3).


Published 20 January 2020

Edited by DaveO, 22 January 2020 - 08:48.