DaveO Posted August 27, 2015 Share Posted August 27, 2015 Oldfield, D. 2015. Allocasuarina verticillata (Lam.) L A S Johnson (Casuarinaceae) Drooping Sheoak. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...rooping-sheoak/ SynonymsCasuarina verticillata Lam.Casuarina stricta AitonCasuarina quadrivalvis Labill.Casuarina macrocarpa A. Cunn ex Miq.Casuarina gunnii Hook.f. ex Miq. Maldon, Victoria, Australia6 August 2015Australian Native Wildflower as Garden Specimen CommentAllocasuarina verticillata is a small spreading tree with drooping branches which grows widely in south eastern Australia. It bears male and female flowers on separate trees and is wind pollinated. Male trees have yellow brown flower-spikes and female trees have red globular flowers. A number of trees grown from seed about four years ago were examined and male flowers were found on two trees, no female flowers have yet been found. The photographs were taken with the flowers hanging down, as on the trees. The anthers appear to have all shed their pollen (dehisced). The flower spikes were about 2 mm diameter. Male flowers 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: DO60787 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: DO60794 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, 30.0 s @ f/16 ISO 400.Image Reference: DO60796 Reference:Moncur, M W, Boland, D J, and Harbard, J L, Aspects of the Floral Biology of Allocasuarina verticillata , Aust. J. Bot., 1997, 45 857–869. Published 27 August 2015 Link to comment
Andrea B. Posted November 6, 2015 Share Posted November 6, 2015 This is the coolest thing when fluorescing! I've never seen anything quite like it. Link to comment
DaveO Posted November 7, 2015 Author Share Posted November 7, 2015 I notice that a few of our native flowers have bright blue hairs in UVIVFL. I'm still looking for a tree with female flowers, it's probably too late this year now. Dave Link to comment
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