indusium
in·du·sium
noun
1.
a membrane enclosing and protecting the developing spores especially that covering the sori of a fern
Origin
Borrowed from Latin indusium.
Related words
Broader terms
Parts
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.