]> [author note: Herbarium and types: AWH; additional material at B (mostly destroyed), BM, BR, FH, LG, MANCH, OS, OXF, PH, W] [collector note: Original herbarium: AWH, BR (ex herb.), C (ex herb.); Belgium: AWH, B, BR, CGE, L, LG; Types of the "Synopsis des Diatomées de Belgique": AWH, B, BM] Botany Van Heurck, Henri Ferdinand Van Heurck, Henri Ferdinand H. F. Van Heurck Van Heurck Henri Ferdinand Van Heurck Heurck, Henri Ferdinand Van 1838 1909