Prunus
Prunus Temporal range:
| |
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Prunus cerasus (sour cherry) in bloom | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Subfamily: | Amygdaloideae |
Tribe: | Amygdaleae |
Genus: | Prunus L. |
Type species | |
P. domestica | |
Synonyms | |
|
Prunus is a genus of
Botany
Members of the genus can be
Within the rose family
Classification
Evolutionary history
The oldest fossils confirmed to belong to Prunus date to the Eocene, and are found across the Northern Hemisphere. Older potential Late Cretaceous records are unconfirmed.[9]
Linnean classification
In 1737, Carl Linnaeus used four genera to include the species of modern Prunus—Amygdalus, Cerasus, Prunus, and Padus—but simplified it to Amygdalus and Prunus in 1758.[10] Since then, the various genera of Linnaeus and others have become subgenera and sections, as all the species clearly are more closely related. Liberty Hyde Bailey said: "The numerous forms grade into each other so imperceptibly and inextricably that the genus cannot be readily broken up into species."[11]
Traditional classification
Historical treatments break the genus into several different genera, but this segregation is not currently widely recognised other than at the subgeneric rank. The ITIS recognises just the single genus Prunus, with an open list of species,[a] all of which are given at List of Prunus species.[b]
One treatment of the subgenera derives from the work of Alfred Rehder in 1940. Rehder hypothesized five subgenera: Amygdalus, Prunus, Cerasus, Padus, and Laurocerasus.[12] To them C. Ingram added Lithocerasus.[13] The six subgenera are described as follows:
- Subgenus Amygdalus, Prunus dulcis(almond)
- Subgenus Prunus, plums and apricots: axillary buds solitary; flowers in early spring stalked, not on leafed shoots; fruit with a groove along one side, stone rough; type species: Prunus domestica (plum)
- true cherries: axillary buds single; flowers in early spring in corymbs, long-stalked, not on leafed shoots; fruit not grooved, stone smooth; type species: Prunus cerasus(sour cherry)
- bush cherries: axillary buds in threes; flowers in early spring in corymbs, long-stalked, not on leafed shoots; fruit not grooved, stone smooth; type species: Prunus pumila(sand cherry)
- Subgenus Padus, bird cherries: axillary buds single; flowers in late spring in racemes on leafy shoots, short-stalked; fruit not grooved, stone smooth; type species: Prunus padus (European bird cherry), now known to be polyphyletic[14]
- cherry laurels: mostly evergreen (all the other subgenera are deciduous); axillary buds single; flowers in early spring in racemes, not on leafed shoots, short-stalked; fruit not grooved, stone smooth; type species: Prunus laurocerasus(European cherry-laurel)
Phylogenetic classification
An extensive phylogenetic study based on different chloroplast and nuclear sequences divides Prunus into three subgenera:[15]
- Subg. Padus: In addition to species of Padus (bird cherries), this subgenus also includes species of Maddenia (false bird cherries), Laurocerasus (cherry laurels) and Pygeum.
- Japanese flowering cherry.
- Subg. Prunus: This subgenus includes the following sections:
- Sect. Prunus: Old World plums
- Sect. Prunocerasus: New World plums
- Sect. Armeniaca: apricots
- Sect. Microcerasus: bush cherries
- Sect. Amygdalus: almonds
- Sect. Persica: peaches
- Sect. Emplectocladus: desert almonds
Species
The lists below are incomplete, but include most of the better-known species.
Afro-Eurasian species
- P. africana – African cherry
- P. apetala – clove cherry
- P. armeniaca – apricot
- P. avium – sweet cherry or wild cherry
- P. brigantina – Briançon apricot
- P. buergeriana – dog cherry
- P. campanulata – Taiwan cherry
- P. canescens – gray-leaf cherry
- P. cerasifera – cherry plum
- P. cerasoides – wild Himalayan cherry
- P. cerasus – sour cherry
- P. ceylanica
- P. cocomilia – Italian plum
- P. cornuta – Himalayan bird cherry
- P. davidiana – David's peach
- P. darvasica – Darvaz plum
- P. domestica – common plum
- P. dulcis– almond
- P. fruticosa – European dwarf cherry
- P. glandulosa – Chinese bush cherry
- P. grayana – Japanese bird cherry
- P. incana – willow-leaf cherry
- P. incisa – Fuji cherry
- P. jacquemontii – Afghan bush cherry
- P. japonica – Japanese bush cherry
- P. laurocerasus – cherry laurel
- P. lusitanica – Portugal laurel
- P. maackii – Manchurian cherry
- P. mahaleb – Mahaleb cherry
- P. mandshurica – Manchurian apricot
- P. maximowiczii – Korean cherry
- P. mume – Chinese plum
- P. nipponica – Japanese alpine cherry
- P. padus – bird cherry
- P. persica– peach
- P. pseudocerasus – Chinese sour cherry
- P. prostrata – mountain cherry
- P. salicina – Japanese plum
- P. sargentii – north Japanese hill cherry
- P. scoparia – mountain almond
- P. serrula – Tibetan cherry
- P. serrulata – Japanese cherry
- P. sibirica – Siberian apricot
- P. simonii – apricot plum
- P. speciosa – Oshima cherry
- P. spinosa – blackthorn, sloe
- P. ssiori – Hokkaido bird cherry
- P. subhirtella– winter-flowering cherry
- P. tenella – dwarf Russian almond
- P. tomentosa – Nanking cherry
- P. triloba – flowering plum
- P. turneriana – almondbark
- P. ursina – Bear's plum
- P. × yedoensis – Yoshino cherry
- P. zippeliana – big-leaf cherry (Chinese: 大叶桂樱)
Species found in the Americas
- P. alabamensis – Alabama cherry
- P. alleghaniensis – Allegheny plum
- P. americana – American plum
- P. andersonii – desert peach
- P. angustifolia – Chickasaw plum
- P. brasiliensis
- P. buxifolia
- P. caroliniana – Carolina laurelcherry
- P. cortapico
- P. emarginata – bitter cherry
- P. eremophila – Mojave Desert plum
- P. fasciculata – wild almond
- P. fremontii – desert apricot
- P. geniculata – scrub plum
- P. gentryi
- P. gracilis – Oklahoma plum
- P. havardii – Havard's plum
- P. hortulana – Hortulan plum
- P. huantensis
- P. ilicifolia – hollyleaf cherry
- P. integrifolia
- P. maritima – beach plum
- P. mexicana – Mexican plum
- P. minutiflora – Texas almond
- P. murrayana – Murray's plum
- P. myrtifolia – West Indies cherry
- P. nigra – Canada plum
- P. occidentalis – western cherry laurel
- P. pensylvanica – pin cherry
- P. pleuradenia – Antilles cherry
- P. pumila – sand cherry
- P. rigida
- P. rivularis – creek plum
- P. serotina – black cherry
- P. subcordata – Klamath plum
- P. subcorymbosa
- P. texana – peachbush
- P. umbellata – flatwoods plum
- P. virginiana – chokecherry
Cultivation
The genus Prunus includes the
A number of species, hybrids, and cultivars are grown as ornamental plants, usually for their profusion of flowers, sometimes for ornamental foliage and shape, and occasionally for their bark.
Because of their considerable value as both food and ornamental plants, many Prunus species have been introduced to parts of the world to which they are not native, some becoming naturalised.
The Tree of 40 Fruit has 40 varieties grafted on to one rootstock.[16][17]
Species such as blackthorn (Prunus spinosa), are grown for hedging, game cover, and other utilitarian purposes.
The wood of some species (notably
Many species produce an aromatic gum from wounds in the trunk; this is sometimes used medicinally. Other minor uses include dye production.
Prunus species are food plants for the
Prunus species are included in the
Ornamental Prunus
Ornamentals include the group that may be collectively called "flowering cherries" (including sakura, the Japanese flowering cherries).
Toxicity
Many species are
Benefits to human health
People are often encouraged to consume many fruits because they are rich in a variety of nutrients and phytochemicals that are supposedly beneficial to human health. The fruits of Prunus often contain many
Cherries
Cherries contain many different phenolic compounds and anthocyanins, which are indicators of being rich in antioxidants.[25][23] Recent research has linked the phenolic compounds of the sweet cherry (Prunus avium) with antitumor properties.[26]
Almonds
Similar to cherries, strawberries, and raspberries, almonds are also rich in
Plums
Of all of the different species of stone fruits, plums are the richest in antioxidants and phenolic compounds. The total antioxidant capacity (TAC) varies within each fruit, but in plums, TAC is much higher in the skin than in the flesh of the fruit.[7][31][22]
Apricots
Apricots are high in
Peaches and nectarines
Similar to the plum, peaches and nectarines also have higher TAC in the skin than in the flesh.[7][31] They also contain moderate levels of carotenoids and ascorbic acid.[34][31][22] Peaches and nectarines are orange and yellow in color, which can be attributed to the carotenoids present.[7]
Pests and diseases
Various Prunus species are winter hosts of the Damson-hop aphid, Phorodon humuli, which is destructive to hops Humulus lupulus just at the time of their maturity,[35] so plum trees should not be grown in the vicinity of hop fields.
Corking is the drying or withering of fruit tissue.[36] In stone fruit, it is often caused by a lack of boron and/or calcium.[37]
Gummosis is a nonspecific condition of stone fruits (peach, nectarine, plum, and cherry) in which gum is exuded and deposited on the bark of trees. Gum is produced in response to any type of wound – insect, mechanical injury, or disease.[38]
Apiosporina morbosa is a major fungal disease in the Northern Americas, with many urban centres running black knot fungus management programs.[39] This disease is best managed by physical removal of knot-bearing branches to prevent spore spread and immediate disposal of infected tissue.[39] Chemical treatment is not largely effective, as trees can easily be re-infected by neighbouring knots.
Laetiporus gilbertsoni (commonly sulfur shelf and chicken of the woods), is a serious cubic brown rot parasite which attacks certain species of decorative red-leaf plum trees in the genus Prunus on the Pacific coast of North America.[40][41]
Palaeobotanical models
This section needs to be updated.(September 2021) |
The earliest known fossil Prunus specimens are wood, drupe, seed, and a leaf from the middle
The Princeton finds are among a large number of angiosperm fossils from the
Etymology
The
The first use of Prunus as a genus name was by Carl Linnaeus in Hortus Cliffortianus of 1737,[52] which went on to become Species Plantarum. In the latter, Linnaeus attributes the word to "Varr.", who it is assumed must be Marcus Terentius Varro.[dubious ]
Notes
- ^ Do a search in the ITIS database on the scientific name Prunus for its current list.
- ^ Other species appear, as well, which for whatever reasons are not yet in ITIS.
- ^ A date of 76 mya is given for Rosaceae, which is within the late Cretaceous.
References
- ^ "Rosales". www.mobot.org. Retrieved 16 June 2023.
- ^ S2CID 16578516. [Referring to the subfamily by the name "Spiraeoideae"]
- ^ a b "Prunus L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 17 March 2024.
- PMID 24631854.
- OCLC 35262271.
- PMID 27707802.
- ^ OCLC 697808315.
- ISBN 9780521420952.
- .
- ^ Linnaeus Carolus (1830). Sprengel, Curtius (ed.). Genera Plantarum Editio Nona [Plant Categories, Ninth Edition]. Gottingen: Dieterich. pp. 402–403.
- ^ Bailey, Liberty Hyde (1898). Sketch of the Evolution of Our Native Fruits. New York: The MacMillan Company. p. 181.
- PMID 11159135.
- ^ Okie, William (July 2003). "Stone Fruits". In Janick, J.; Paulii, R.E. (eds.). Encyclopedia of Fruits and Nuts. C A B Intl (published 2008).
- S2CID 5991106.
- PMID 23945216.
- ^ "The Gift of Graft: New York Artist's Tree To Grow 40 Kinds of Fruit". NPR. 3 August 2014. Retrieved 3 January 2015.
- ^ "This tree produces 40 different types of fruit". ScienceAlert. 21 July 2014. Retrieved 3 January 2015.
- ^ Chladil, Mark; Sheridan, Jennifer (2006). "Fire retardant garden plants for the urban fringe and rural areas" (PDF). www.fire.tas.gov.au. Retrieved 5 December 2017.
- ^ Armstrong, E. Frankland (1913). "Glucosides". In Davis, W.A.; Sadtler, Samuel S. (eds.). Allen's Commercial Organic Analysis. Vol. VII (Fourth ed.). Philadelphia: P. Blakiston's Son & Co. p. 102. Retrieved 5 December 2017.
- ^ Cook, Laurence Martin; Callow, Robert S. (1999). Genetic and evolutionary diversity: the sport of nature (2nd ed.). Cheltenham: Stanley Thornes. p. 135.
- ^ PMID 24012283.
- ^ ISSN 0308-8146.
- ^ PMID 23789932.
- ^ PMID 11087538.
- ISSN 0308-8146.
- PMID 25466123.
- ^ S2CID 19550239.
- ^ S2CID 83628789.
- PMID 24629981.
- ^ PMID 17867638.
- ^ PMID 12166993.
- ^ PMID 21535583.
- PMID 20877223.
- PMID 22417419.
- ^ "Damson-hop aphid, Phorodon humuli". Rothamstead Insect Survey. Rothamstead Research. Archived from the original on 26 June 2012.
- ^ Benson, N.R.; Woodbridge, C.G.; Bartram, R.D. (1994). "Nutrient Disorders in Tree Fruits" (PDF). Pacific Northwest Extension Publications. Retrieved 9 September 2017.
- ^ Day, Kevin (27 January 1999). "Peach and Nectarine Cork Spot:A Review of the 1998 Season" (PDF). University of California Cooperative Extension – Tulare County. University of California, Davis. Retrieved 9 September 2017.
- ^ Hartman, John; Bachi, Paul (November 2005). "Gummosis and Perennial Canker of Stone Fruits" (PDF). Plant Pathology. University of Kentucky. Retrieved 9 September 2017.
- ^ a b "Black knot". www.alberta.ca. Retrieved 7 October 2020.
- ^ "Chicken of the Woods (Laetiporus sulphureus species complex)". Retrieved 21 October 2023.
- ^ "Yellow tree fungus on very old plum tree #246036". ask2.extension.org. Retrieved 18 October 2023.
- ^ ISBN 978-0-7748-0578-0.
- PMID 21652396.
- ISSN 1058-5893.
- ^ doi:10.1139/e04-084. Archived from the original(PDF) on 3 March 2016. Retrieved 2 September 2007.
- ^ "plum". Online Etymological Dictionary.
- ^ "prune". Online Etymological Dictionary.
- ^ "prūnum". Lewis's Elementary Latin Dictionary. Perseus Digital Library. 1890.
- ^ "prūnus". Lewis's Elementary Latin Dictionary. Perseus Digital Library. 1890.
- ^ "προῦμνον". Liddell and Scott's Greek-English Lexicon. Perseus Digital Library.
- ^ "προύμνη". Liddell and Scott's Greek-English Lexicon. Perseus Digital Library.
- . Retrieved 5 December 2017.
External links
- "GRIN Species Records of Prunus". Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network(GRIN) [Online Database]. National Germplasm Resources Laboratory. Retrieved 13 November 2009.
- "Our Cherries Collection — Prunus". Missouri Botanical Garden: Kemper Center for Home Gardening. 2001–2009. Retrieved 13 November 2009.
- Tree of 40 fruit website