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sterigma
Note: mycology term
「小柄」 has other readings with different meanings.
担子器の先端に小柄が四本見えた。
Four sterigmata were visible at the tip of the basidium.
胞子は小柄の先に形成される。
The spores form at the ends of the sterigmata.
顕微鏡で小柄の形を確認した。
We checked the shape of the sterigmata under the microscope.