Updated 12 Feb 2017
- Hedyotis caerulea (L.) Hook.
- Houstonia caerulea var. faxinorum Pease & Moore
The UV-black heart of the innocent Quaker Lady is revealed!
The higher elevation variant is Houstonia caerulea L. var. faxonorum Pease.
1. Mittelhauser et al. (2010) Bluets, page 334. The Plants of Acadia National Park. The U. of Maine Press, Orono, ME.
2. Newcomb, L. (1977) Bluets, page 156. Newcomb's Wildflower Guide. Little, Brown & Co., New York City, NY.
Kinship Lane, Southwest Harbor, Maine, USA
15 July 2012
Equipment [Nikon D300-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]
Visible Light [f/11 for 1/60" @ ISO 200 with onboard Flash and Baader UVIR-Block Filter]
Ultraviolet Light [f/11 for 1/60" @ ISO 200 with SB-14 UV-modified Flash and Baader UV-Pass Filter]
Ultraviolet Light: This 100% crop from the preceding photograph shows the conical cells.