Photo 2583547, (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy

Attribution	© Donna Pomeroy some rights reserved
Uploaded by	dpom
Source	iNaturalist Canada
Associated observations	Photos / Sounds What Petrospongium rugosum Observer dpom Date October 28, 2015 05:34 PM PDT Place San Mateo, California, United States (Google, OSM) Date Added October 29, 2015 09:06 AM PDT Description patches of algae growning in the high intertidal, about 5-6" across, but less than an inch high. 3 comments 4 IDs Research Grade View
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