Abstract: More than 80 individuals of Euryodendron excelsum H.T.Chang, a critically endangered species which was thought only several individuals still living, and its natural population are newly found in Bajia region of Yangchun County, Guangdong Province. The environment condition, detail distribution pattern, population components, phenology ,seeds dispersion style and seed germination tests as well as the rarity situation and causes of this plant are studied and analyzed.

Key words: Theaceae