1. NHD18/64 Reference (shelfmark): NHD18/64 Title: Plant of the family Acanthaceae, Hygrophila sp. Scope & Content: Plant of the family Acanthaceae, ‘Hygrophila sp’. Original inscriptions: ‘Barleria new sp.’ Further inscriptions: Artist: Medium: Watercolour Size: Note: Collection Area: Visual Arts Languages: Not applicable Date Range: 1798-1805 Extent: 1 Item