microsporangium
Botanical term for the structure in which microspores are produced, found in seed plants and some ferns.
The microsporangium is the organ that produces microspores, which develop into pollen.
Refers to the megasporangium, which produces megaspores; contrasts with 小胞子嚢 in size and function.
General term for sporangium; 小胞子嚢 specifies the microsporangium.
Compound of 小 (small) + 胞子 (spore) + 嚢 (sac, capsule), a calque from Western botanical terminology.