]> [author note: Herbarium and types: BOL (marine algae), PRE (phan.); additional material at B (mostly destroyed), BM, E, FI, GRA, K, MO, NH, PRE, SAM, STE. Exsiccatae: South African Marine Algae at BR, DBN, FH, GRA, MANCH, NY, PC, PRE] Botany Tyson, William Tyson, William W. Tyson Tyson William Tyson 1851 1920