Think I first saw these mushrooms (Hypomyces lactifluorum) on an episode of Iron Chef America. Have yet to eat one, even though Dona Tomas is pitching an intriguing Lobster Mushroom Quesadilla.
Turns out that a per se lobster mushroom is actually another type of mushroom that has succumb to a fungal parasite. For a more detalied explanation of this "mycological cannibalism", you can visit Tom Volks' website. I'll report back once I've variously sliced, steamed, sauteed.