Soak mushrooms 20 to 30 minutes in cold water to re-hydrate.
Dry, and coarsely chop.
Heat oil in a medium saucepan over medium heat.
Stir in mushrooms, garlic, and red pepper.
Cook until browned.
Stir in clams and white wine.
As clams open, remove to a medium bowl, discarding those that remain closed.
Mix tomatoes, clam juice, and parsley into the mushroom mixture.
Simmer until slightly thickened, about 15 minutes.
Bring a large pot of lightly salted water to a boil.
Add linguine, and cook for 8 to 10 minutes or until al dente; drain.
Return clams to the broth mixture and cook until heated through.
Thoroughly mix in cooked linguine just before serving.
Prep Time 20 Min Cook Time 30 Min Ready In 1 Hr 20 Min.