aril

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Related to arillate: Arillus

aril

A specialised fleshy outgrowth from the funiculus (the attachment point of a seed), which covers or is attached to the seed in some plants.
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Fruit mostly a pair of ventrally dehiscent follicles (often only one due to abortion) (rarely a capsule), with small seeds with a micropylar coma, rarely with a chalazal coma or ecomose (fruits in Rauvolfioideae drupes, berries, follicles, or capsules; seeds usually ecomose, naked, winged, or arillate).
Anthers usually sagittate at base and with lignified guide rails; fruit fleshy, either a pair of dehiscent follicles with arillate seeds or an indehiscent beery Tabernaemontaneae 1.
Seeds usually without a coma, rarely with, or very rarely arillate (Isidorea).