One hundred yards from the gray waters of the San Francisco Bay, a single-room stucco building called The Guardhouse marks the entrance to the historic Fort Mason. Not much bigger than a parking-lot booth, the structure has been transformed by the local art foundation FOR-SITE: it is now an art gallery in-miniature. The Guardhouse’s inaugural exhibition features the work of the Bay Area-based photographer Kija Lucas, whose aesthetic meshes portraiture with taxonomy. Among other botanical objects, Lucas captures a sprig of the endangered Franciscan manzanita, the white petals of the invasive blue gum eucalyptus, and a packet of seeds labeled “SAVE 4 2023.” The brass-framed prints hang on the building’s inner walls, which are wallpapered with the artist’s original designs. Visitors are asked to view the prints through the windows of the building—perhaps while sipping a hot beverage from the neighboring Equator Coffee—and to ponder the environmental contradictions of the Bay Area’s beautiful biodiversity. —Paulina Prosnitz