]> [author note: Herbarium and types: BM (9,000 hepatics), MANCH; additional material at DBN, E, GL, H, K, L, OXF, PC, W, WELC (now at NY)] [collector note: Hepatic herbarium: BM, MANCH; British Isles (mainly Hepaticae): BM, DBN, DPU, E, GL, K, L, MANCH, W, WELC] Botany Pearson, William Henry Pearson, William Henry W. H. Pearson Pearson Pearson, W. H. William Henry Pearson 1849 1923