Note the color of the alga in the first 3 images, sort of a reddish pink. The last three images are this same alga under UV light. Very bright and interesting auto-fluorescence.
Very beautiful images, Charles! Thank you for sharing.
I just found Licmophora sp. in boat dock at Juneau, Alaska. Also in Galveston, Texas previously. This form seems to he fragile and did not survive a hot water boil (when I attempted to clean it).
The autofluorescence images are especially spectacular. I've been away from my home scope for too long. The only upside is that this is due to being in front of my SEM at work too much...but a black and white image can't do this....where did you find this sample?