Arcangeliella crassa, commonly known as the gasteroid milk cap,[3] is a North American secotioid fungus species in the family Russulaceae.

Research suggests that the contents of genus Arcangeliella, should probably be transferred into the genus Lactarius.

[4][5] It was described from a collection made in Stanislaus National Forest, Northern California.

[1] Arcangeliella crassa in Index Fungorum Arcangeliella crassa in MycoBank.

(with detailed description from original publication)\