Fruiting Body General Description (General Characteristics)
This species is usually shaped like a white creamy blob or a ball when young and begins to develop a basal portion that is a bit narrower than the ball-like portion as it matures that creates a shape vaguely reminiscent of an inverted pear or a loaf of bread. The surface of the fungus can be fairly smooth and broken up into mosaic-like scales.
Kuo, Michael, Image Calvatia cyathiformis, MushroomExpert.Com, September 2016. Retrieved 2016-11-02. 
Has a large cap, about 8-17 cm high and 8-20 cm wide. The skin of the cap can be 1-2 mm thick. It's white when young then becomes yellowish, then brownish and finally turns into a dull purple when mature. It has a chocolate-brown or purple-colored gleba with a smooth exoperidium. As it ages the exterior dries and cracks and the fleshy spore-bearing interior breaks away to be distributed by wind and rain. After the spores completely disperse, a soft leathery cup-shaped with a ragged upper edge remains with a sterile base lightly rooted to the ground.
Has no hymenophore, instead has a gleba with a smooth exoperidium
"Image Calvatia Cyathiformis." MyCoPortal Retrieved 2016-11-04. 
No stipe present in this species
The spores are purple to dark purple-brown in color. Has a globose to subglobose shape with 0.5-1 µ long spines on the spore walls. The size of the spore ranges from 3.5 to 7 microns
"Calvatia Cyathiformis - Fungalspores." Calvatia Cyathiformis - Fungalspores Retrieved 2016-11-04 
The flesh is soft and leather-like to touch. The mushroom is solid and very brittle, it will brake easily.
This mushroom is edible, but has no distinct flavor or odor. It does absorb the flavors easily and since it is so big, it only takes one to two fruiting bodies for a dinner for two . This mushroom relies on the destruction of itself for spore dispersal .
C. cyathiformis is a large mushroom, growing up to 20 cm wide and 17 cm high. It also has purple spores that are expelled through the top of the cap. This mushroom starts off white, but turns purple due to the color of the spores. The mushroom starts off spherical, but the top portion becomes thicker than the bottom as it matures .
Kuo, Michael "Image 2 Calvatia Cyathiformis" MushroomExpert.com, September 2016. Retrieved 2016-11-06 
"Species: Calvatia cyathiformis" hiddenforest.co.nz Retrieved 2016-111-06. 
Collection Location on GGC’s Campus
This mushroom was found growing on the soil, not on trees or decaying wood.
C. cyathiformis grows all throughout North America, except for along the west coast. They are known to grow alone in grassy areas and also in fairy rings . There have been sightings in Australia .
Wood, M & Stevens, F, "California Fungi—Calvatia cyathiformis image" A Mykoweb Page Retrieved 2016-11-06. 
C. cyathiformis fruits from summer to fall .
The purple-spored puffball is found mostly in North America, but has been documented in Australia as well. "C. cyathiformis" can easily be confused with "C. fragilis" because they look the same, but "C. fragilis' does not grow to be as big .
Mushrooms have been known to have natural steroids in them. "C. cyathiformis" specifically has calvasterols A and B .
This page was created by
Vanessa Largo and Angelique LaFrance for BIOL 3350K WIKI assignment lab
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