Aril

[4] Pseudarils are aril-like structures commonly found on the pyrenes of Burseraceae species that develop from the mesocarp of the ovary.

[5] The fleshy, edible pericarp splits neatly in two halves, then falling away or being eaten to reveal a brightly coloured pseudaril around the black seed.

Such arils are also found in a few species of gymnosperms, notably the yews and related conifers such as the lleuque and the kahikatea.

Instead of the woody cone typical of most gymnosperms, the reproductive structure of the yew consists of a single seed that becomes surrounded by a fleshy, cup-like covering.

If the seed is crushed, breaks or splits in the stomach of a human, bird or another animal, it will result in poisoning.

An aril that surrounds the nutmeg seed is used as a spice called mace .
The edible white aril of Litchi chinensis is sometimes called an arillode or false aril. It grows partly from the funiculus and partly from the integument of the seed. [ 1 ]
The fleshy aril that surrounds each seed in the yew is a highly modified seed cone scale.