Abstract:Anther structure and the formation and development of microspores were studied of Sinomanglietia glauca Z. X. Yu et Q. Y. Zheng, an endangered monotypic species of Magnoliaceae found in Jiangxi Province in 1988. The stamens numerous, distinct. Each anther with four pollen sacs. Mature anther wall comprises an epidermis followed by endothecium layer, 2 middle layers, and a single-layered tapetum. During the development of micro-sporogenesis, glandular tapetum appears disintegrated, recovered, then disintegrated until disappeared．The meiotic division of pollen mother ceils is of simultaneous type． The arrangement of microspores in a tetrad is tetrahedral and isobilateral．Mature pollen grains are released at 2-celled stage．The characters of anther structure in S．glauca coincide with those in Manglietia glauca var．sumatrana M.insignis，and M．aromatica，except the tapetum which consists of only one cell layer in S．glauca.
