"The work concerns photographing representative species of CP
under incident light with and without a UV filter (305-385 nm) on the
camera. It was disclosed that most CP (the one Nepenthes was an
exception) had UV absorbance and reflective patterns of their leaves
and/or glands reminiscent of many patterns in flowers visible in the
insect UV spectrum. Thus, the various UV patterns may serve to attract
insect prey. In the Heliamphora example shown, UV photography clearly
shows that UV absorbance of the external surface and reflectance of
the internal surface clearly accentuates the latter in the insect
visual light range. Other photos in the paper showing stalked gland
leaves (Droseras and Pinguiculas) are even more startling."
As to their book "The Carnivorous Plants" I will again direct you
back to the inter library loan system if the book is not in your local
library. You want Chapter 5. If your budget is that extremely tight
then you will get the bulk of the UV related text from pages 74
through 76. You may also wish to read page 241 from the chapter titled
"The Role of Phytochemicals in Carnivory" which contains a small bit
more.
krs
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# I.C.P.S. C/O Kevin Snively | Secretary/Treasurer I.C.P.S. #
# P.O. Box 1013 | kevin.snively@pstbbs.com #
# Everett Wa. 98206-1013 | ksnive@premier1.net #
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