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On a walk through the snow-capped mountains of San Jacinto State Park in California, I was surprised to see these little knobs of yellow-white fungus on the bark of a tree. They were growing about 10 feet above the ground (the one I photographed up-close was found on the floor), and unfortunately I'm not as tall to take a closer shot.


Found 8,000 feet above sea level in a park reached through the Palm Springs Aerial Tram. The tree seems to be a Jeffrey Pine, but I could be mistaken.


At first seems like a discolored sulfur shelf, Laetiporus sulphureus.

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Ivan Rodriguez
Ivan Rodriguez 8 years ago

I was thinking Scleroderma as well, but then again a species that grows directly on a tree doesn't ring a bell. And a discolored sulfur shelf would work if the spore mass wasn't brown... looks like this ID will be tricky to find. :)

ScottRasmussen 8 years ago

That looks like a dark spore mass inside the fungus in the third shot, which would possibly make it a puffball in the genus Scleroderma. I can't find any info on any of these fungi growing directly on trees though.

Ivan Rodriguez
Spotted by
Ivan Rodriguez

California, USA

Spotted on Jan 16, 2012
Submitted on Jan 17, 2012

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