U.S.A., California, Del Norte, Big Flat Station, S. Fork of the Smith River & intersect. 427 & 15N38.
Note from Sydowia paper: A Tanoak Forest stand of almost pure Lithocarpus densiflora was examined near the intersection of Road 427 and the road down to Buck Creek Campground. Mostly bare soil or covered w/leaf litter. Basic soil with serpentine parent materials on some sites.