Caesia calliantha [Blue Grass-lily]

[DaveO]

Oldfield, D. 2020. Caesia calliantha R.J.F. Hend. (Hemerocallidaceae) Blue Grass-Lily. Flowers photographed in visible and ultraviolet light.

 

Maldon, Victoria, Australia

29 November 2019

Australian Native Wildflower as Garden Specimen

 

Synonym

Caesia vittata R. Br.

 

Comments:

Caesia calliantha is a tufted perennial lily which occurs in a variety of habitats in South Australia, Victoria, Tasmania and New South Wales. The tubers were eaten fresh as indigenous food.

 

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.

Image Reference: DO66491

 

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.

Image Reference: DO66493

 

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.

Image Reference: DO66495

 

References:

 

Henderson, R.J.F. in George, A.S. (ed.) (1987) Appendix: Caesia. Flora of Australia 45

 

Conran, J.G. (1994) Liliaceae. In Walsh, N.G.; Entwisle, T.G. (eds.), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.

 

Published 1 January 2020

[Andy Perrin]

A very odd fluorescence result!

[DaveO]

I think it may be due to Chlorophyll

https://en.wikipedia.org/wiki/Chlorophyll_fluorescence

it is an effect I have seen before

https://www.ultravioletphotography.com/content/index.php/topic/1715-pterostylis-curta-blunt-greenhood/