Calvatia cyathiformis, commonly called the Purple-spored Puffball, is from family Lycoperdaceae. It is a terrestrial puffball, relatively smooth and spherical or slightly flattened when young, often becoming pear-shaped or irregularly shaped as it matures.
The skin of the fungus dries and darkens, and cracks with age, sometimes resembling a tesselated pattern (as shown in the previous image). The fleshy spore-bearing mass begins to turn purple-brown, breaks away and is distributed by wind and rain.
The purple-brown spore mass is exposed
This is a common puffball in grazing paddocks and grassed areas in the Hunter Valley rural district in which I live. I am unaware, at this time, of its complete distribution.
This specimen has a stout base resembling a stalk
My sightings of Calvatia cyathiformis
[This will be updated with future sightings]
Hunter Valley, NSW - unimproved grazing paddocks: Nov, Dec, Jan.
Merriwindi State Conservation Area - (Baradine, NW NSW) - compacted sandy soil: Jun, Jul.
Macquarie Marshes district (NW NSW) - grazing paddock following rain: Jul.
Irregular shapes of Calvatia cyathisformis