I see you've been a member since August, 2008. How long has this tank been set up? How long have you had these plants? What else is in the tank? Size of tank, etc.? Do you have filtration? The spots appear fuzzy... are they?
looks like it's hydra. up your water changes along with manual removal (wipe them off with your fingers). they should go away. i get hydra in my well established planted tank when i feed a little too much and get lazy with tank maintenance.
yes the spot are fuzzy and alover the place on wood and plants tanks established been running well over a yr now 100 ltr i have a tetrec filter that moves the suface water and bubbles from the air tubing plants been in a gd few months but no growth outta them tho , changed substrate to eco complete with gravel it was sand iam going to get some brand new plants du to there being lots of bba all over em