'Botanical notes, taken in Norfolk, Carmarthenshire, Gloucestershire, Surrey, Cardiganshire, Pembrokeshire, Northamptonshire, Oxfordshire, Berkshire, Cambridgeshire, Hampshire, Buckinghamshire, Radnorshire, Dorsetshire', 1881-8, by A. Wentworth Powell, Tymawr, being a list of the scientific and common names of flowers and plants and of the localities in which they were found, etc.