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According to a research team led by palaeontologists from the University of Vienna, the net-like leaf veining typical for today's flowering plants developed much earlier than previously thought, but died out again several times.

Deep green foliage with silver veining is attractive throughout the year.

The show also debuts a selection of squiggly drawings on paper, the medium where Jacobs got his start: The brushy black-and-gray rings, in a quaint midcentury mode, underscore the expressiveness veining his rigorous work.

Every backdrop a canvas of pure white, tracked ever so delicately with gray veining!

Ms. Reynolds picked up the insect, took it back to her work table and became fascinated by the shape and intricate veining of its wings.