This is a list of the type specimen taxa that Sereno Watson collected in Nevada during his time as the botanist for Clarence King's Geological Exploration of the Fortieth Parallel from 1867 - 1869. The story of how Watson came to serve as the expedition's botanist is quite interesting. http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/watson-sereno.pdf

Many of the names have changed,sometimes maintaining the taxon concept under a new species or genus name, sometimes not. I have tried to select the correct current name but sometimes the chain of changes is a little vague and difficult to follow. less ↑