number carved in stone covered with lichen 1861

1861 abstract aged anno annum areolate born botany carved cemetery century chronology civil clean cleaning close common covered craftsmanship crustose cryptogamia cryptogamic cryptograms date decade died dimelaena discolored domini emancipation era etched events forms funerary geologic geology granite gravestone growth historical history lepraria leprose lichen lichenology lincoln macrolichen manifesto masonry millenium neglect neglecta number numerology obscuratum oreina polsporina relief rhizocarpon rock secedes simplex society spores steam stone stonework sumter textured thalli thallus ugly unsightly values variety war year