EPOD 20th - Giant Puffball

September 04, 2020

Puffball copy

We’re celebrating 20 years of Earth Science Picture of the Day during the month of September! Today’s photo features a popular EPOD from the past. Thanks to all of our followers (on the blog, Facebook, Instagram and Twitter) for supporting us. Thanks also to all of you who’ve submitted your photos. We’re most appreciative. This EPOD was originally published October 23, 2002.

Provided by: Martin Ruzek, USRA
Summary author: Martin Ruzek

Neither plant nor animal, fungi quietly do their work at the base of the ecosystem, along with bacteria, to break down complex organic compounds into simpler building blocks. The autumn woods are home to this curiously spherical example of fungal recycling - the giant puffball (Calvatia gigantea). Fungi have no chlorophyll, as this pale specimen can attest, and draw their nutrients from other organic matter. The puffball at this stage with firm white flesh is still immature, and quite a delicacy sliced and fried in butter and onions. As the mushroom matures, its flesh becomes brown, olive green and dries to a spongy powdery consistency - a massive fruiting body waiting to be kicked to produce a puff of billions of single-celled spores to carry on as next year's crop.

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