Some spread flat like maps across mineral-stained stones, others rise in ruffled rosettes up plantation tree trunks, while some form crusty, scale-like patches bridging both worlds. They are both environmental sensors and ecosystem engineers, maintaining delicate balances in these manufactured spaces. Breaking down stone and bark alike, trapping moisture, filtering air, and creating soil - they remind us that true recovery doesn't distinguish between what humans planted and what nature reclaims. In their endless varieties and vital roles, they weave together the artificial and the organic, creating authentic ecosystems from our simplified solutions.