Callitris columellaris is a species of coniferoustree in the family Cupressaceae (cypress family), native to most of Australia. Common names include white cypress,[3]white cypress-pine, Murray River cypress-pine, and northern cypress-pine. Callitris columellaris has become naturalised in Hawaii[4] and in southern Florida.[5][6][7]
It is a small evergreentree, 4–12 m (rarely to 20 m) high, with a trunk up to 50 cm diameter. The leaves are scale-like, 2–6 mm long and 0.5 mm broad, arranged in decussate whorls of three on very slender shoots 0.7–1 mm diameter. The cones are globose, 1–2 cm diameter, with six triangular scales, which open at maturity to release the seeds.
Taxonomyedit
Some authors (e.g. Thompson & Johnson 1986, followed by the Flora of Australia Online) divide it into three species (or occasionally as varieties), based largely on the foliage colour, with green plants predominating on the east coast of Australia, and glaucous plants in the interior, and on cone size, with on average marginally smaller cones in tropical areas (north of 22°S). However, others (e.g. Blake 1959, Farjon 2005) point out that both the foliage colour and cone size is very variable, even from tree to tree in local populations, and maintain that it is impossible to distinguish three taxa within the species. When split into three species, the following names apply:
Callitris columellaris F.Muell. sensu stricto – coastal northeast New South Wales, southeast Queensland.
Callitris glaucophylla Joy Thomps. & L.A.S.Johnson (syn. C. columellaris var. campestris Silba; C. glaucanom. inval.; C. hugelii nom. inval.) – throughout most of the southern half of Australia.
Callitris intratropica R.T.Baker & H.G.Smith (syn. C. columellaris var. intratropica Silba) – northern Queensland, northern Northern Territory, northern Western Australia.
Pollinationedit
Eric Rolls described the pollination of C.columellaris thus: "At pollination time when hundreds of cones go off together with a sharp crack and spurt brown pollen a metre into the air, the whole tree shivers."[8]
^Thomas, P. (2013). "Callitris columellaris". IUCN Red List of Threatened Species. 2013: e.T42206A2961309. doi:10.2305/IUCN.UK.2013-1.RLTS.T42206A2961309.en. Retrieved 11 November 2021.
^"Callitris columellaris F.Muell. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2019-12-01.
^"White cypress". Business Queensland. 12 December 2018. Retrieved 4 July 2022.
^"Callitris columellaris". Pacific Island Ecosystems at Risk (PIER). 2 July 2003. Retrieved 4 July 2022.
^"Search results". University of Florida Herbarium (FLAS) Collection Catalog, Florida Museum of Natural History. 26 June 2018. Retrieved 4 July 2022.
^Rolls, E. "Chapter 23 Perfumed pines: the exploited, and the exploiter in Perfumed Pineries Environmental history of Australia's Callitris forests.pdf" (PDF). p. 208. Retrieved 2019-12-01.
External linksedit
Wikispecies has information related to Callitris columellaris.
Wikimedia Commons has media related to Callitris columellaris.
Blake, S. T. (1959). New or noteworthy plants, chiefly from Queensland. Proc. Roy. Soc. Queensland 70 (6): 33–46.
Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys, pp. 507–513. Royal Botanic Gardens, Kew. ISBN1-84246-068-4.
Thompson, J. & Johnson, L. A. S. (1986). Callitris glaucophylla, Australia's 'White Cypress Pine' – a new name for an old species. Telopea 2 (6): 731–736.
Thomas, P. (2013). "Callitris columellaris". IUCN Red List of Threatened Species. 2013: e.T42206A2961309. doi:10.2305/IUCN.UK.2013-1.RLTS.T42206A2961309.en. Retrieved 11 November 2021.
callitris, columellaris, species, coniferous, tree, family, cupressaceae, cypress, family, native, most, australia, common, names, include, white, cypress, white, cypress, pine, murray, river, cypress, pine, northern, cypress, pine, become, naturalised, hawaii. Callitris columellaris is a species of coniferous tree in the family Cupressaceae cypress family native to most of Australia Common names include white cypress 3 white cypress pine Murray River cypress pine and northern cypress pine Callitris columellaris has become naturalised in Hawaii 4 and in southern Florida 5 6 7 Callitris columellaris Callitris columellaris C glaucophylla Conservation status Least Concern IUCN 3 1 1 Scientific classification Kingdom Plantae Clade Tracheophytes Clade Gymnospermae Division Pinophyta Class Pinopsida Order Cupressales Family Cupressaceae Genus Callitris Species C columellaris Binomial name Callitris columellarisF Muell Synonyms 2 Callitris arenosa A Cunn ex R T Baker amp H G Sm Callitris columellaris var campestris Silba Callitris columellaris subsp campestris Silba Silba Callitris columellaris f glauca F M Bailey Callitris columellaris var intratropica R T Baker amp H G Sm Silba Callitris columellaris subsp intratropica R T Baker amp H G Sm Silba Callitris columellaris var microcarpa Benth Govaerts Callitris glauca R Br ex R T Baker amp H G Sm Callitris glaucophylla J Thomps amp L A S Johnson Callitris hugelii Carriere Franco Callitris intermedia R T Baker amp H G Sm Callitris intratropica R T Baker amp H G Sm Callitris robusta var intratropica R T Baker amp H G Sm Ewart amp O B Davies Callitris robusta var microcarpa Benth F M Bailey Frenela columellaris F Muell Parl Frenela hugelii Carriere Frenela moorei Parl Frenela robusta var microcarpa Benth Frenela verrucosa var laevis C Moore Octoclinis backhousei W Hill Contents 1 Description 2 Taxonomy 3 Pollination 4 Gallery 5 References 6 External linksDescription editIt is a small evergreen tree 4 12 m rarely to 20 m high with a trunk up to 50 cm diameter The leaves are scale like 2 6 mm long and 0 5 mm broad arranged in decussate whorls of three on very slender shoots 0 7 1 mm diameter The cones are globose 1 2 cm diameter with six triangular scales which open at maturity to release the seeds Taxonomy editSome authors e g Thompson amp Johnson 1986 followed by the Flora of Australia Online divide it into three species or occasionally as varieties based largely on the foliage colour with green plants predominating on the east coast of Australia and glaucous plants in the interior and on cone size with on average marginally smaller cones in tropical areas north of 22 S However others e g Blake 1959 Farjon 2005 point out that both the foliage colour and cone size is very variable even from tree to tree in local populations and maintain that it is impossible to distinguish three taxa within the species When split into three species the following names apply Callitris columellaris F Muell sensu stricto coastal northeast New South Wales southeast Queensland Callitris glaucophylla Joy Thomps amp L A S Johnson syn C columellaris var campestris Silba C glauca nom inval C hugelii nom inval throughout most of the southern half of Australia Callitris intratropica R T Baker amp H G Smith syn C columellaris var intratropica Silba northern Queensland northern Northern Territory northern Western Australia Pollination editEric Rolls described the pollination of C columellaris thus At pollination time when hundreds of cones go off together with a sharp crack and spurt brown pollen a metre into the air the whole tree shivers 8 Gallery edit nbsp Mature tree circa 1920 nbsp C columellaris foliage nbsp C columellaris bark nbsp Mature tree nbsp Green fruit Narrabri Shire nbsp Mature fruit Narrabri ShireReferences edit Thomas P 2013 Callitris columellaris IUCN Red List of Threatened Species 2013 e T42206A2961309 doi 10 2305 IUCN UK 2013 1 RLTS T42206A2961309 en Retrieved 11 November 2021 Callitris columellaris F Muell Plants of the World Online Kew Science Plants of the World Online Retrieved 2019 12 01 White cypress Business Queensland 12 December 2018 Retrieved 4 July 2022 Callitris columellaris Pacific Island Ecosystems at Risk PIER 2 July 2003 Retrieved 4 July 2022 Florida plant atlas Callitris columellaris Florida plant atlas details Callitris columellaris Search results University of Florida Herbarium FLAS Collection Catalog Florida Museum of Natural History 26 June 2018 Retrieved 4 July 2022 Rolls E Chapter 23 Perfumed pines the exploited and the exploiter in Perfumed Pineries Environmental history of Australia s Callitris forests pdf PDF p 208 Retrieved 2019 12 01 External links edit nbsp Wikispecies has information related to Callitris columellaris nbsp Wikimedia Commons has media related to Callitris columellaris Blake S T 1959 New or noteworthy plants chiefly from Queensland Proc Roy Soc Queensland 70 6 33 46 Farjon A 2005 Monograph of Cupressaceae and Sciadopitys pp 507 513 Royal Botanic Gardens Kew ISBN 1 84246 068 4 Thompson J amp Johnson L A S 1986 Callitris glaucophylla Australia s White Cypress Pine a new name for an old species Telopea2 6 731 736 Thomas P 2013 Callitris columellaris IUCN Red List of Threatened Species 2013 e T42206A2961309 doi 10 2305 IUCN UK 2013 1 RLTS T42206A2961309 en Retrieved 11 November 2021 Callitris columellaris Flora of Australia Online Department of the Environment and Heritage Australian Government Callitris glaucophylla Flora of Australia Online Department of the Environment and Heritage Australian Government Callitris intratropica Flora of Australia Online Department of the Environment and Heritage Australian Government Callitris glaucophylla FloraBase Western Australian Government Department of Biodiversity Conservation and Attractions Gymnosperm Database Callitris columellaris Gymnosperm Database Callitris glaucophylla Gymnosperm Database Callitris intratropica Retrieved from https en wikipedia org w index php title Callitris columellaris amp oldid 1146837005, wikipedia, wiki, book, books, library,
