Agaricus Blazei, or Agaricus Subrufescens - two mushrooms that go by the name Almond Portobello.
Tasty mushroom for gourmet recipes. Extracts used as cancer treatment in some parts of the world (both have cancer inhibiting effects, but Blazei is the one most often referred to in that capacity). Slightly harder to grow than regular Portobello mushrooms due to sensitivity to contamination in “sterile” settings.
This is a prized mushroom, originally for the almond flavor for which it is named, and later for medicinal benefits. It is still a wonderful culinary find, and can be used either as a button (unopened) mushroom, or as a larger traditional Portobello style mushroom.