indusium

基本解释

• n.[植]柱头下毛圈；囊群盖

同根派生

英汉例句

• Sori borne near the costule, indusium spherical, membranous.
  孢子囊群靠近中脉著生；囊群盖球形，膜质。
• Indusium The flap of tissue, derived from the placenta, that encloses the developing sporangia in the sorus of a fern.
  囊群盖：是一种起源于胎座（应为叶表皮译者注）的瓣片状组织，覆盖在蕨类植物孢子囊群中正在发育的孢子囊上。
• Sori hemispheroid, in 2-3 series on each side along the costules, without indusium.
  孢子囊群圆形，沿中脉两侧各排成2-3行，无囊群盖。
• Sori 1-5 pairs borne on the lower surface of ultimate lobes at the end of basal veins; indusium dehiscent in two equal halves when mature.
  孢子囊群1-5对，生于末回裂片下面近基部小脉顶端；囊群盖成熟时对开2裂。
• indusium dehiscent in two equal halves when mature.
  囊群盖成熟时对开2裂。