Daniel Steegmann Mangrané’s first major solo show in the UK is a surprisingly understated affair. Comprising two new and two existing works across two galleries, the show’s modesty is not only quantitative, but also aesthetic. Best known for his appealing curtains of colored aluminum mesh, which have occupied gallery spaces and fair booths across the world, in this exhibition the Rio de Janeiro–based artist has embraced more inconspicuous gestures. A new commission, Living Thoughts (2019), brings the biodiversity of the Atlantic Forest into a brightly lit white cube. This rainforest, which stretches along the Atlantic coast of Brazil and into parts of Paraguay, Uruguay, and Argentina, is home to some 23,000 species of plants and more than 2,000 species of animals. But with only 7 percent of its original extent preserved, it has become Brazil’s most endangered ecosystem. São Paulo and Rio de Janeiro, two of the world’s largest cities, were built over areas of the forest. At the gallery, dozens of native plants protrude from hand-blown vases shaped like branches. Ferns, bromeliads, cactuses, and orchids sprout out of the small orifices of the transparent vessels, which are either resting on the floor or hanging from the ceiling at the height they …