Here's Tim Milliken, the lichenologist, who developed a procedure for harvesting and transferring living lichen so that it can successfully colonize a new host surface. In this case, that means the lava stone walls of SFMOMA's open-air sculpture garden. Photo 2 of 12 in World's First Lichen Garden? by Jaime Gillin

World's First Lichen Garden?

2 of 12

Here's Tim Milliken, the lichenologist, who developed a procedure for harvesting and transferring living lichen so that it can successfully colonize a new host surface. In this case, that means the lava stone walls of SFMOMA's open-air sculpture garden.