Editing Drupe (section)

==Terminology==
The boundary between a drupe and a berry is not always clear. Thus, some sources describe the fruit of species from the genus ''[[Persea]]'', which includes the [[avocado]], as a drupe,<ref name="FNA">{{cite book |first1=B. Eugene |last1=Wofford |contribution=Persea |contribution-url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=124627 |access-date=2017-03-29 |editor-last=Flora of North America Editorial Committee|title=Flora of North America ''(online)'' |publisher=eFloras.org }}</ref> others describe avocado fruit as a berry.<ref name=Arms08/> One definition of ''berry'' requires the endocarp to be less than {{Convert|2|mm|abbr=on|frac=32}} thick, other fruits with a stony endocarp being drupes.<ref name=Been10>{{Cite book |last=Beentje |first=Henk |year=2010 |title=The Kew Plant Glossary |location=Richmond, Surrey |publisher=[[Royal Botanic Gardens, Kew]] |isbn=978-1-84246-422-9 }}</ref>  In marginal cases, terms such as ''drupaceous'' or ''drupe-like'' may be used.<ref name=Been10/>

The term '''stone fruit''' (also '''stonefruit''') can be a synonym for drupe or, more typically, it can mean just the fruit of the genus ''Prunus''.

{{anchor|freestone}}'''Freestone''' refers to a drupe having a stone which can be removed from the flesh with ease. The flesh is not attached to the stone and does not need to be cut to free the stone. Freestone varieties of fruits are preferred for uses that require careful removal of the stone, especially if removal will be done by hand. Freestone plums are preferred for making homegrown [[prune]]s, and freestone [[sour cherry|sour cherries]] are preferred for making pies and [[cherry soup]].

{{anchor|clingstone}}'''Clingstone''' refers to a drupe having a stone which cannot be easily removed from the flesh. The flesh is attached strongly to the stone and must be cut to free the stone. Clingstone varieties of fruits in the genus ''Prunus'' are preferred as table fruit and for jams, because the flesh of clingstone fruits tends to be more tender and juicy throughout.

'''Tryma''' is a specialized term for such [[Nut (fruit)|nut]]-like drupes that are difficult to categorize. Hickory nuts ([[Carya (genus)|''Carya'']]) and [[walnut]]s (''[[Juglans]]'') in the [[Juglandaceae]] family grow within an outer husk; these fruits are technically drupes or drupaceous nuts, thus are not true botanical [[Nut (fruit)|nuts]].<ref name=Arms08>{{Cite web|title=Identification of Major Fruit Types
| first = W. P. | last = Armstrong
| date = 2008
|url=http://www.waynesword.net/fruitid1.htm|access-date=2023-01-16}}</ref><ref>{{Cite web
| title= Fruits Called Nuts
| date = 2009
| first = W. P. | last = Armstrong
 |url=http://www.waynesword.net/ecoph8.htm|access-date=2023-01-16}}</ref>