When the context indicates nothing to the contrary, the word commonly refers to an envelope covering the nucellus of the ovule. (wikipedia.org)
In this apomixis, the embryo is formed from nucellus or integument or any diploid cell of the ovule. (rbsesolutions.com)
Integument2
Derivative terms include various adjectival forms such as integumentary (e.g. system), integumental (e.g. integumental glands, "peltate glands, the integument being raised like a bladder due to abundant secretion") and integumented (as opposed to bare). (wikipedia.org)
Other illustrative examples of usage occur in the following articles: Connective tissue in skeletal muscle Dorsal artery of the penis (example of integument enclosing an internal organ) Flensing Flesh (generic use of plural "integuments") Herzog & de Meuron (figurative usage) Integumentary system (senses related to vertebrate skin and medical aspects) Integumental muscles Mosasaur Seed Brown, Lesley (1993). (wikipedia.org)
Embryo-sac1
The ovule is curved at (180 ) and the embryo sac becomes horseshoe-shaped. (bioenotes.com)
Diploid2
Megasporogenesis is the process of haploid megaspore production within the megasporangium by meiotic division of diploid megaspore mother cells (MMC) (ovule). (bioenotes.com)
In this apomixis, the embryo is formed from nucellus or integument or any diploid cell of the ovule. (rbsesolutions.com)