From the opposite quarter an influx of Japanese and Chinese forms, such as the rhododendrons, the tea plant, Aucuba, Helwingia, Skimmia, Adamia, Goughia and others, has taken place, these being more numerous in the east and gradually disappearing in the west.
Magnolia, Aucuba, Abelia and Skimmia may be mentioned as examples of Chinese genera found in the eastern Himalayas, and the tea-tree grows wild in Assam.
Various oaks descend within a few hundred feet of the sea-level, increasing in numbers at greater altitudes, and becoming very frequent at 4000 ft., at which elevation also appear Aucuba, Magnolia, cherries, Pyrus, maple, alder and birch, with many Araliaceae, Hollbollea, Skimmia, Daphne, Myrsine, Symplocos and Rubus.