Memoirs of the Torrey Botanical Club, 1896-1899, Vol. 6 (...
Fink, Bruce![Memoirs of the Torrey Botanical Club, 1896-1899, Vol. 6 (Classic Reprint)](https://support.digitalhusky.com/media/annotations/sorted/254/25491119/CHSBZCOP0325491119.jpg)
Excerpt from Memoirs of the Torrey Botanical Club, 1896-1899, Vol. 6In answering these questions, the various ecologic factors which in¿uence the distribution of lichens must be kept in mind. Those which have especially attracted notice in my studies are the par ticular kinds of substrata in a region, changes in these substrata through the destruction of old and the introduction of new ones naturally, or through some animate and commonly human...