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The micropyle
The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.
The type of ovule in Pinus is an anatropous, unitegmic, and crassinucellate ovule. This means that the ovule is inverted, has a single integument, and contains a thick nucellus.
An angiosperm seed coat is formed from toughened parts of the ovule wall. This wall provides protection for the developing embryo and seed contents. It also helps prevent desiccation and mechanical damage during seed dispersal.
The stalk of an ovule is called the funiculus. It connects the ovule to the placenta within the ovary of a flower.