]> [author note: Herbarium and types: E (phanerogams), AWH (diatoms), GL; additional material at BR, BRISTM, CGE, DBN, FI-W, G, K (algae), NMW, NY, OXF, PH, WAR, WECO] Botany Arnott, George Arnott Walker Arnott, George Arnott Walker G. A. W. Arnott Arn. Arnott George Arnott Walker (at birth); George Arnott [sometimes Arnold] Walker Arnott 1799 1868