Cut the cucumber in half lengthwise. Slice very thin diagonally. Sprinkle lightly with salt. Allow to stand for 5 minutes; drain well. Squeeze to remove the excess moisture. Place the cucumber slices in a circle on a plate. Put the sliced wood ears in the center. Arrange the crab meat neatly on top of the mushrooms.
Mix the dressing ingredients together and drizzle the dressing over the salad. Garnish with cilantro.
--Kay Shimizu, from Cooking with Exotic Mushrooms ALTERNATE MUSHROOM: Enoki