indusium

名词 indusium:

1. a membrane enclosing and protecting the developing spores especially that covering the sori of a fern

in.du.si.um

n.（名词）
【复数】 in.du.si.a[-zô-…, -zhô-…]
An enclosing membrane, as that covering the sorus of a fern.
囊群盖：一种包裹其它物的膜，如蕨类植物的孢囊群的覆盖膜

来源：
Latin [tunic]
拉丁语 [紧身上衣]
perhaps alteration of Greek endusis [dress]
可能为 希腊语 endusis的变化 [穿衣]
from enduein [sink into, to put on]
源自 enduein [下沉，穿上]
en- [in] * see en- 2
en- [在里面] *参见 en-2
duein [to sink]
duein [下沉]