Extract from Wikipedia article: Mycenastrum is a fungal genus in the family Agaricaceae. The genus is monotypic, containing one widely distributed species, Mycenastrum corium, known by various common names: the giant pasture puffball, leathery puffball, or tough puffball.
Corkstar (leathery) puffball mushroom (Mycenastrum corium) with mature spore mass (gleba) on a lawn in Wolf Pen Creek Park (it was found 6 days before and cut in halves). College Station, Texas, November 17, 2025
Skin of corkstar (leathery) puffball mushroom (Mycenastrum corium) on a lawn in Wolf Pen Creek Park (it was found 6 days before and cut in halves). College Station, Texas, November 17, 2025
Spores and olive-yellow spiny capillitial threads from gleba of corkstar puffball mushroom (Mycenastrum corium) from a lawn in Wolf Pen Creek Park under a microscope with x40 objective in KOH solution. College Station, Texas, November 17, 2025
Spores and capillitium of corkstar puffball mushroom (Mycenastrum corium) from a lawn in Wolf Pen Creek Park under a microscope with x40 objective in KOH solution. College Station, Texas, November 17, 2025
Close-up of sporesof corkstar puffball mushroom (Mycenastrum corium) from a lawn in Wolf Pen Creek Park under a microscope in KOH solution. College Station, Texas, November 17, 2025
Spores, capillitium and basidia of corkstar puffball mushroom (Mycenastrum corium) from a lawn in Wolf Pen Creek Park under a microscope with x40 objective in Congo Red. College Station, Texas, November 17, 2025
Close-up of a capillitial thread of corkstar puffball mushroom (Mycenastrum corium) under a microscope in Congo Red. College Station, Texas, November 17, 2025