Abstract: According to the result of wild survey on the Formanodendron doichangensis-commu-nity, the floristic elements of the community has been analysed. The Tropical & Subtropical floristic elements are of a great deal(90.25 of the total species), among them the Indo-Malaysian floristic elements are in the frist place(41.46), the floristic elements of the bor-der land in Yuaana and other countries (Burma, Laos, Thailand and Vietnam) are in the second place (29.2 in total), the floristic elements relating to Tropical Africa are few, but there are no the floristic elements relating to Tropical Australia or Tropical America. Based on the floristic analysis of the community, it is strong to support the view suggested by Kevin C. Nixon & William L. Crepet: Formanodendron is a distinct genus and F. doichangensis was originated from the ancestor of Trigonobalanus verticillata in early Tertiary.

Key words: Formanodendron doichangensis