When: 2007-04-24

Collection location: Point Reyes National Seashore, Marin Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

No specimen available

Notes:
Found in open grassy area. Fits the description of C. gigantea except they are on the small side, 7-8cm across. West coast version of Calvatia booniana seems more apt.

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Proposed Names

81% (3)
Used references: Based on the size, habitat, thick endoperidium and e-mail from Fred Stevens, I now believe these are C. pachyderma.
28% (1)
Recognized by sight

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= Observer’s choice
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Comments

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Habitat question
By: Ron Pastorino (Ronpast)
2007-04-25 12:27:48 AEST (+1000)
I was put off that trail by the habitat..“confined to the arid or semi-arid regions of western North America”. But now see that there is a “less warty species along the west coast”. Will make the change.
Calvatia booniana
By: Darvin DeShazer (darv)
2007-04-25 11:59:02 AEST (+1000)

The western giant puffball is Calvatia booniana and this looks like it. It also lacks a sterile base as does Calvatia gigantea but instead of a smooth exoperidium it has one that breaks into large flat scales that become lightly pigmented in the center.