Siu mai is a dumpling or dim sum filled with minced (US: ground) prawn and/or pork, ginger and mushrooms gathered loosely in gyoza wrappers or wontun wrappers cut into circles with the top left open, steamed and served as a dim sum. They are frequently served with fish roe or grated carrot.
Horse mushroom. Edible, and very delicious, but easily mistaken for other less palatable or even poisonous mushrooms.
Judas's ear fungus, often found dried. Dried or fresh they should not be fried, as they explode, but stewed with other ingredients.