Riccia beyrichiana, a liverwort of the "complex thallose" type, was growing on mud banks along a small stream in open serpentine county near chaparral along Bottle Rock Road, Lake County, California, on March 28th 2012. This piece was collected and photographed (still in in its micro-habitat) at at my house later. Thanks to Martin Hutten and Dan Norris for the identification. Image I12-0365
