Herbarium sheet, whorled water-milfoil, Myriophyllum verticillatum, found in a ditch by the side of Redbridge Canal, about 1 mile from Romsey and Timsbury, Hampshire, 1850

Herbarium sheet, whorled water-milfoil, Myriophyllum verticillatum, found in a ditch by the side of Redbridge Canal, about 1 mile from Romsey and Timsbury, Hampshire, 1850
Herbarium sheet, whorled water-milfoil, Myriophyllum verticillatum, found in a ditch by the side of Redbridge Canal, about 1 mile from Romsey and Timsbury, Hampshire, 1850