TY - Bulletin of Botanical Research A1 - LI Li;HUANG Heng-Yu T1 - The genesis of microspore and the formation of male gametophyte in Swertia davidii Franch. Y1 - 2006-07-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 452 EP - 460 VL - 26 IS - 4 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2006.04.026 ER -