As usual, coming home from work at 6:30 p.m. a few days ago, I parked in the sunken lot below our building and walked up the concrete steps to the walkway that leads to our unit. On the hillside a few feet beyond that sidewalk, I saw a couple of grey-white blobs that looked like they might be a new species of exotic mushroom. Such fungi often pop up here a few days after it’s rained.