What is your experience with Lichen Planus? [more inside]
posted by anastasiav on May 2, 2009 - 4 answers

Plant-filter: which plants/mosses for an office terrarium if the office has no windows and only florescent lighting? (something like this?) [more inside]
posted by unclezeb on Nov 19, 2008 - 9 answers

Why are there no species that implement both halves of the photosynthesis/respiration cycle? [more inside]
posted by DU on Oct 2, 2008 - 45 answers

Car window & sun-roof seals - how do you remove lichen and treat the rubber? [more inside]
posted by boosh on Apr 9, 2008 - 2 answers

I was up on my roof earlier today and saw that it's covered with lichen, and there's moss growing underneath and lifting up the asphalt shingles. I there any kind of moss-or-fungicide I can spray or paint onto this stuff to get rid of it? (A trip to Loews turned up nothing.)
posted by Faze on Aug 1, 2004 - 6 answers