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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

Lat: 33.78, Long: -116.73

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

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