Various, Youth, Vol. I, No. 7, September 1902… (1902)
“ Instead of seeds, lichens have a fine dust, called spores, from which they develop.Lichens are exceedingly long-lived and excessively slow of growth. The lily attains its lovely maturity in a few months; the oaks, elms, pines, become great trees in twenty or thirty years; the humble lichen often lives forty or fifty years before it is old enough to complete its growth by producing spores. Botanists say that the life of a lichen is fitful and strange, and is practically indefinite as to duration. Lichens simply live on and on. ”
