EditorialThe hollow where four trunks diverge from the base of the sugar maple tree, offering a perfect spot for moss, lichen and other plants, on Darlyn Hoffstot's farm in Ligonier, Pa., Nov, 14, 2022. (Kristian Thacker/The New York Times)
EditorialThe hollow where four trunks diverge from the base of the sugar maple tree, offering a perfect spot for moss, lichen and other plants, on Darlyn Hoffstot's farm in Ligonier, Pa., Nov, 14, 2022. (Kristian Thacker/The New York Times)
EditorialColorful lichen carpet the floor of the old-growth boreal forest in the Mishigamish-Broadback Valley, in Quebec, Canada on Nov. 4, 2022. (Nasuna Stuart-Ulin/The New York Times)