AT HOME IN THE WOODS Marja Lianko Draws on Finnish Roots for Works of Bark “Birches have nearly taken over my studio,” says artist Marja Lianko, whose upcoming show at the Chandler Gallery features paintings and sculpture depicting—and, in some cases, made of—trees, bark and branches. Lianko is a fixture in the Boston art scene. She taught at the School of the Museum of Fine Arts for 23 years, and has shown her work at the MFA, the Fogg Museum,…