Cupressaceae
| Cupressaceae Temporal range:
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|---|---|
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| Cupressus sempervirens foliage and cones | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnosperms |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Cupressales
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| Family: | Cupressaceae Bartlett[1] |
| Subfamilies[2] | |
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Cupressaceae is a
of mature trees is commonly orange- to red-brown and of stringy texture, often flaking or peeling in vertical strips, but smooth, scaly or hard and square-cracked in some species.Description
The
decussate pairs (opposite pairs, each pair at 90° to the previous pair) or in decussate whorls of three or four, depending on the genus. On young plants, the leaves are needle-like, becoming small and scale-like on mature plants of many genera; some genera and species retain needle-like leaves throughout their lives.[1] Old leaves are mostly not shed individually, but in small sprays of foliage (cladoptosis);[1] exceptions are leaves on the shoots that develop into branches. These leaves eventually fall off individually when the bark starts to flake. Most are evergreen with the leaves persisting 2–10 years, but three genera (Glyptostrobus, Metasequoia and Taxodium) are deciduous
or include deciduous species.
.JPG)
The
pollen cones are more uniform in structure across the family, 1–20 mm long, with the scales again arranged spirally, decussate (opposite) or whorled, depending on the genus; they may be borne singly at the apex of a shoot (most genera), in the leaf axils (Cryptomeria), in dense clusters (Cunninghamia and Juniperus drupacea), or on discrete long pendulous panicle
-like shoots (Metasequoia and Taxodium).
Cupressaceae is a widely distributed conifer family, with a near-global range in all continents except for Antarctica, stretching from 70°N in arctic
Pilgerodendron uviferum), further south than any other conifer species.[4] Juniperus indica reaches 4930 m altitude in Tibet.[5] Most habitats on land are occupied, with the exceptions of polar tundra and tropical lowland rainforest (though several species are important components of temperate rainforests and tropical highland cloud forests); they are also rare in deserts, with only a few species able to tolerate severe drought, notably Cupressus dupreziana in the central Sahara. Despite the wide overall distribution, many genera and species show very restricted relictual distributions, and many are endangered species
.
The world's largest (Sequoiadendron giganteum) and tallest (Sequoia sempervirens) trees belong to the Cupressaceae, as do six of the ten longest-lived tree species.
Classification
Taiwania cryptomerioides
Mendocino Coast Botanical Gardens, Fort Bragg
Molecular and morphological studies have expanded Cupressaceae to include the genera of
Cupressoideae. The former Taxodiaceae genus, Sciadopitys, has been moved to a separate monotypic family Sciadopityaceae due to being genetically distinct from the rest of the Cupressaceae. In some classifications Cupressaceae is raised to an order, Cupressales. Molecular evidence supports Cupressaceae being the sister group to the yews (family Taxaceae), from which it diverged during the early-mid Triassic. The clade comprising both is sister to Sciadopityaceae, which diverged from them during the early-mid Permian.[6] The oldest definitive record of Cupressaceae is Austrohamia minuta from the Early Jurassic (Pliensbachian) of Patagonia, known from many parts of the plant.[7] The reproductive structures of Austrohamia have strong similarities to those of the primitive living cypress genera Taiwania and Cunninghamia. By the Middle to Late Jurassic Cupressaceae were abundant in warm temperate–tropical regions of the Northern Hemisphere. The diversity of the group continued to increase during the Cretaceous period.[8] The earliest appearance of the non-taxodiaceous Cupressaceae (the clade containing Callitroideae and Cupressoideae) is in the mid-Cretaceous, represented by "Widdringtonia" americana from the Cenomanian of North America, and they subsequently diversified during the Late Cretaceous and early Cenozoic.[9]
The family is divided into seven subfamilies, based on genetic and morphological analysis as follows:[10][11]
- Subfamily
- Cunninghamia R.Br.
- † Elatides Middle Jurassic- Early Cretaceous, Eurasia (possibly North America)
- † Hughmillerites Late Jurassic-Early Cretaceous Europe, North America
- † Sewardiodendron Middle Jurassic, Asia
- † Scitistrobus Middle Jurassic, Europe
- † Pentakonos Early Cretaceous, Asia
- † Acanthostrobus Late Cretaceous, North America
- † Mikasostrobus Late Cretaceous, Japan
- † Parataiwania Late Cretaceous, Japan
- † Ohanastrobus Late Cretaceous, Japan
- † Nishidastrobus Late Cretaceous, Japan
- † Cunninghamiostrobus Early Cretaceous-Oligocene Japan, North America
- Subfamily Taiwanioideae L.C.Li[12]
- Taiwania Hayata
- Subfamily Athrotaxidoideae L.C.Li[12]
- Athrotaxis D.Don – Tasmanian cedar
- Subfamily Sequoioideae Saxton[12]
- Metasequoia Hu & W.C.Cheng – dawn redwood
- Sequoia Endl. – coast redwood
- Sequoiadendron J.Buchholz – giant sequoia
- Subfamily Taxodioideae Endl. ex K.Koch[12]
- Cryptomeria D.Don – sugi
- Glyptostrobus Endl. – Chinese swamp cypress
- Taxodium Rich. – bald cypress
- Subfamily Callitroideae Saxton[14]
- Actinostrobus Miq. – cypress-pine
- Austrocedrus Florin & Boutelje
- Callitris Vent. – cypress-pine
- Diselma Hook.f.
- Fitzroya Hook.f. ex Lindl. – alerce
- Libocedrus Endl.
- NeocallitropsisFlorin
- Papuacedrus H.L.Li
- Pilgerodendron Florin
- Widdringtonia Endl.
- Subfamily Cupressoideae Rich. ex Sweet[15]
- Callitropsis Kurz – Nootka cypress
- Calocedrus Kurz – incense-cedar
- Chamaecyparis Spach – cypress
- Cupressus L. – cypress
- Fokienia A.Henry & H.H.Thomas – Fujian cypress
- Hesperocyparis Bartel & R. A. Price
- Juniperus L. – juniper
- MicrobiotaKom.
- Platycladus Spach – Chinese arborvitae
- Tetraclinis Mast.
- Thuja L. – thuja or arborvitae
- Thujopsis Siebold & Zucc. ex Endl. – hiba
- Xanthocyparis Farjon & T. H. Nguyên – cypress
A 2010 study of Actinostrobus and Callitris places the three species of Actinostrobus within an expanded Callitris based on analysis of 42 morphological and anatomical characters.[16]
Phylogeny based on 2000 study of morphological and molecular data.[17] Several further papers have suggested the segregation Cupressus species into four total genera.[18][19]
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A 2021 molecular study supported a very similar phylogeny but with some slight differences, along with the splitting of Cupressus (found to be paraphyletic):[20]
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Uses
 | This section needs additional citations for verification. (December 2017) |
Many of the species are important
waymarking
. Its heartwood is fragrant and used in clothes chests, drawers and closets to repel moths. It is a source of juniper oil used in perfumes and medicines. The wood is also used as long lasting fenceposts and for bows.
Several genera are important in horticulture.
Giant sequoia is a popular ornamental tree[28] and is occasionally grown for timber.[29] Giant sequoia,[30] Leyland cypress, and Arizona cypress are grown to a small extent as Christmas trees.[31]
Some species have significant cultural importance. The
Monterey cypresses are often visited by tourists and photographers, particularly a tree known as the Lone Cypress.[37]
The fleshy cones of Juniperus communis are used to flavour gin.
Native Americans and early European explorers used Thuja leaves as a cure for scurvy. Distillation of Fokienia roots produces an essential oil called pemou oil[38] used in medicine and cosmetics.[39]
Recent progress on Endophyte Biology in Cupressaceae, by the groups of Jalal Soltani (Bu-Ali Sina University) and Elizabeth Arnold (Arizona University) have revealed prevalent symbioses of endophytes and endofungal bacteria with family Cupressaceae. Furthermore, current and potential uses of Cupressaceous tree's endophytes in agroforestry and medicine is shown by both groups.
Chemistry
The Cupressaceae trees contain a wide range of extractives, especially terpenes and terpenoids,[40] both of which have strong and often pleasant odors.
The
heartwood, bark and leaves are the tree parts richest in terpenes.[41] Some of these compounds are widely distributed in other trees as well, and some are typical for Cupressaceae family. The most known terpenoids found in conifers are sesquiterpenoids, diterpenes and tropolones. Diterpenes are commonly found in different types of conifers and are not typical for this family. Some sesquiterpenoids (e.g. bisabolanes, cubenanes, guaianes, ylanganes, himachalanes, longifolanes, longibornanes, longipinanes, cedranes, thujopsanes) also present in Pinaceae, Podocarpaceae and Taxodiaceae.[40] Meanwhile, chamigranes, cuparanes, widdranes and acoranes are more distinctive for Cupressaceae. Tropolone derivatives, such as nootkatin, chanootin and hinokitiol
are particularly characteristic for Cupressaceae.
Disease vectors
Several genera are an alternate host of Gymnosporangium rust, which damages apples and other related trees in the subfamily Maloideae.[42]
Allergenicity
The
monoicous variants of Austrocedrus and Widdringtonia.[45] However, the females of some species have a very low potential for causing allergies (an OPALS allergy scale rating of 2 or lower) including Austrocedrus females and Widdringtonia females.[45]
References
- ^ a b c Watson, Frank D.; Eckenwalder, James E. (1993). "Cupressaceae". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 2. New York and Oxford: Oxford University Press. Retrieved 6 September 2013 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- .
- .
- S2CID 90020476.
- doi:10.1659/mrd.0792.
- S2CID 236141481.
- .
- S2CID 202862782.
- S2CID 52120430.
- PMID 22550176.
- PMID 28120880.
- ^ a b c d e Armin Jagel, Veit Dörken: Morphology and morphogenesis of the seed cones of the Cupressaceae - part I. Cunninghamioideae, Athrotaxoideae, Taiwanioideae, Sequoioideae, Taxodioideae. In: Bulletin of the Cupressus Conservation Project, 3(3): 117-136 (PDF)
- ISSN 1916-2790.
- ^ Armin Jagel, Veit Dörken: Morphology and morphogenesis of the seed cones of the Cupressaceae - part III. Callitroideae. In: Bulletin of the Cupressus Conservation Project 4(3): 91-103 (PDF)
- ^ Armin Jagel, Veit Dörken: Morphology and morphogenesis of the seed cones of the Cupressaceae - part II. Cupressoideae. In: Bulletin of the Cupressus Conservation Project 4(2): 51-78 (PDF)
- doi:10.1071/sb09044.
- PMID 10898782.
- ISBN 1-84246-068-4..
- ^ Xiang, Q.; Li, J. (2005). "Derivation of Xanthocyparis and Juniperus from within Cupressus: Evidence from Sequences of nrDNA Internal Transcribed Spacer Region". Harvard Papers in Botany. 9 (2): 375–382.
- S2CID 236141481.
- .
- ^ ISBN 978-962-7956-19-8.
- .
- ^ Fu, Liguo; Yu, Yong-fu; Adams, Robert P.; Farjon, Aljos. "Glyptostrobus". Flora of China. Vol. 4 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ "Junipers". Chicago Botanic Garden. Retrieved 19 December 2022.
- ^ Westerfield, Bob (6 October 2022) [15 May 2009]. "Junipers". University of Georgia Extension. Retrieved 19 December 2022.
- ^ Satoh, Keiko (14 November 1998). "Metasequoia Travels the Globe". Arnoldia. Vol. 58, no. 4. Arnold Arboretum of Harvard University. pp. 72–75.
- ^ Cahill, Angela. "Nature's Masterpiece: Giant Sequoia". Pacific Horticulture. Retrieved 14 December 2022.
- S2CID 233554030.
- ISBN 978-0-16-027145-8.
- ^ Owen, Jeff (November 2011). "Selecting the Right Tree". North Carolina State Extension. Retrieved 14 December 2022.
- ^ "El ahuehuete, Árbol Nacional" [The ahuehuete, National Tree] (in Spanish). National Forestry Commission of Mexico. 25 September 2018. Retrieved 18 December 2022.
- ^ Debreczy, Zsolt; Racz, Istvan (1997). "El Arbor del Tule: The Ancient Giant of Oaxaca" (PDF). Arnoldia. Arnold Arboretum of Harvard University. 57 (4): 3–11.
- ^ "State Tree – California Redwood". California State Capitol Museum. 20 October 2021. Retrieved 19 December 2022.
- ^ Thomas, Catherine Cullinane; Flyr, Matthew; Koontz, Lynne (June 2022). 2021 National Parks Visitor Spending Effects: Economic Contributions to Local Communities, States, and the Nation (PDF) (Report). Fort Collins, Colorado: U.S. National Park Service. pp. 36–37.
- ISBN 978-1-5652-3271-6.
- ^ Reynolds, Christopher (19 May 2013). "Standing Before the Lone Cypress". Los Angeles Times. Retrieved 19 December 2022.
- .
- doi:10.1002/ffj.1557.
- ^ S2CID 20371074.
- PMID 17979713.
- S2CID 7875028.
- S2CID 196440359.
- ^ Krihara (Kurihashi), M. (1997). "Physiochemical and immunological characterization of major allergens of Japanese cedar pollen and false cypress pollen". Allergology (in Japanese). 3: 203–211.
- ^ ISBN 978-1-60774-491-7.
Further reading
- Soltani, J. (2017) Endophytism in Cupressoideae (Coniferae): A Model in Endophyte Biology and Biotechnology. In: Maheshwari D. (eds) Endophytes: Biology and Biotechnology. pp. 127–143. Sustainable Development and Biodiversity, vol 15. Springer, Cham.
- Pakvaz, S, Soltani J. (2016) Endohyphal bacteria from fungal endophytes of the Mediterranean cypress (Cupressus sempervirens) exhibit in vitro bioactivity. Forest Pathology, 46: 569–581.
- Soltani, J., Zaheri Shoja, M., Hamzei, J., Hosseyni-Moghaddam, M.S., Pakvaz, S. (2016) Diversity and bioactivity of endophytic bacterial community of Cupressaceae. Forest Pathology, 46: 353–361.
- Farjon, A. (1998). World Checklist and Bibliography of Conifers. Royal Botanic Gardens, Kew. 300 p. ISBN 1-900347-54-7.
- Farjon, A.; Hiep, N. T.; Harder, D. K.; Loc, P. K.; Averyanov, L. (2002). "A new genus and species in the Cupressaceae (Coniferales) from northern Vietnam, Xanthocyparis vietnamensis". Novon. 12 (2): 179–189. JSTOR 3392953.
- Little, D. P., Schwarzbach, A. E., Adams, R. P. & Hsieh, Chang-Fu. (2004). The circumscription and phylogenetic relationships of Callitropsis and the newly described genus Xanthocyparis (Cupressaceae). American Journal of Botany 91 (11): 1872–1881. Available online Archived 2008-05-15 at the Wayback Machine.
External links
- Arboretum de Villardebelle Cone images of many species
- Gymnosperm Database: Cupressaceae
- Flora of China – Cupressaceae
- Flora of North America – Cupressaceae
- ×Taxodiomeria peizhongii tree named 'Dongfangshan’ US PP17767 P3
Media related to Cupressaceae at Wikimedia Commons
Data related to Cupressaceae at Wikispecies
