MEDICAGO ARBOREA.--South Europe, 1596. This species grows to the height

of 6 feet or 8 feet, and produces its Pea-shaped flowers from June

onwards. The leaves are broadly oval and serrated at the tips, but they

vary in this respect. It is not hardy unless in warm, sheltered corners

of southern England and Ireland, although it stood unharmed for many

years at Kew. It succeeds best, and is less apt to receive injury, when

planted in rather dry and warm soil.