Dry fruits

They are different from fleshy fruits based on their dry pericarp,[1] in which the exocarp, mesocarp and endocarp aren't clearly distinguishable from each other.

[1] In dehiscent dry fruits, the pericarp splits open to release the seeds, these include capsules, follicles and legumes.

While in indehiscent dry fruits, the pericarp doesn't split open and seeds generally dispersed by wind or animals, these include nuts, achenes, caryopses, samaras and nutlets.

[1] Indehiscent dry fruits like nuts, including chestnuts, have a husk or shell formed from bracts which doesn't split open to release the seeds.

[1] Schizocarps like cremocarps, which includes hogweed, have a flattened pericarp and both carpels of the fruit separate into mericarps (half-fruits) without exposing the seeds.