Papuacedrus

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Papuacedrus Temporal range:
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Gymnospermae
Division:	Pinophyta
Class:	Pinopsida
Order:	Cupressales
Family:	Cupressaceae
Subfamily:	Callitroideae
Genus:	Papuacedrus H.L.Li
Species:	P. papuana
Binomial name
Papuacedrus papuana (F.Muell.) H.L.Li
Synonyms
Libocedrus papuana F.Muell. Thuja papuana (F.Muell.) Voss Libocedrus torricellensis Schlechter ex Lauterbach Papuacedrus torricellensis (Schlechter ex Lauterbach) Li Libocedrus arfakensis Gibbs Papuacedrus arfakensis (Gibbs) Li

Papuacedrus papuana is a species in the conifer family Cupressaceae, the sole species in the genus Papuacedrus. Some botanists do not consider this species as forming a distinct genus, but include it in the related genus Libocedrus. It is native to New Guinea and to the Indonesian Province of Maluku.

It is usually a medium-sized to large evergreen tree 16–50 m tall, at high elevations only a shrub reaching up to 3 m). The foliage is borne in flat sprays, with the leaves scale-like, in opposite pairs, with facial and lateral pairs alternating; the lateral leaves are larger, 2–3 mm long on mature trees and up to 20 mm long on young trees, the facial leaves smaller, 1 mm on mature trees and up to 8 mm on young trees. The cones are 1–2 cm long, with four scales, a small, sterile basal pair, and a larger fertile pair; the fertile scales each bearing two winged seeds.

The species has two varieties, most readily distinguishable as young plants with juvenile leaves (the adult foliage being nearly indistinguishable):

• Papuacedrus papuana var. papuana (syn. Libocedrus papuana F.Muell., Libocedrus torricellensis Schltr., Papuacedrus torricellensis (Schltr.) H.L.Li). New Guinea, east of 138°E longitude; 620–3,800 m elevation. Juvenile leaves with a spreading, hook-like apex.
• Papuacedrus papuana var. arfakensis (Gibbs) R.J.Johns (syn. Libocedrus arfakensis Gibbs, Papuacedrus arfakensis (Gibbs) H.L.Li). New Guinea, west of 138°E longitude, Moluccas; 700–2,400 m elevation. Juvenile leaves not spreading, the apex not free from the shoot.

A fossil species, Papuacedrus prechilensis, is known from the Eocene of Argentina.

References

1. ^ Thomas, P. (2013). "Papuacedrus papuana". IUCN Red List of Threatened Species. 2013: e.T42260A2967824. doi:10.2305/IUCN.UK.2013-1.RLTS.T42260A2967824.en. Retrieved 12 November 2021.
2. ^ a b "Papuacedrus papuana". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
3. ^ Farjon A (2001). World Checklist and Bibliography of Conifers. Vol. 2. Kew: The Royal Botanic Gardens. pp. 1–309.
4. ^ Leslie AB, Beaulieu JM, Rai HS, Crane PR, Donoghue MJ, Mathews S (October 2012). "Hemisphere-scale differences in conifer evolutionary dynamics". Proceedings of the National Academy of Sciences of the United States of America. 109 (40): 16217–21. Bibcode:2012PNAS..10916217L. doi:10.1073/pnas.1213621109. PMC 3479534. PMID 22988083.

Further reading

• Farjon A (2005). Monograph of Cupressaceae and Sciadopitys. Kew: Royal Botanic Gardens. ISBN 1-84246-068-4.
• Earle, Christopher J., ed. (2018). "Papuacedrus papuana". The Gymnosperm Database.

Wikimedia Commons has media related to Papuacedrus papuana.

v t e Classification of Acrogymnospermae (living Gymnosperms)
Supergroup Plant: Bryophyta Marchantiophyta Polypodiophyta Acrogymnospermae Angiospermae
Ginkgoidae Ginkgoales Ginkgoaceae Ginkgo Cycadidae Cycadales Cycadaceae Cycas Zamiaceae Diooideae Dioon Zamioideae Macrozamia Lepidozamia Encephalartos Bowenia Ceratozamia Stangeria Zamia Microcycas Pinidae Gnetales Ephedraceae Ephedra Gnetaceae Gnetum Welwitschiaceae Welwitschia Pinales Pinaceae Abietoideae Cedrus Pseudolarix Nothotsuga Tsuga Keteleeria Abies Pinoideae Pseudotsuga Larix Cathaya Picea Pinus Araucariales Araucariaceae Wollemia Agathis Araucaria Podocarpaceae Phyllocladoideae Halocarpus Pectinopitys Sundacarpus Prumnopitys Parasitaxus Lagarostrobos Manoao Lepidothamnus Phyllocladus Podocarpoideae Saxegothaea Microcachrys Pherosphaera Acmopyle Dacrycarpus Falcatifolium Dacrydium Retrophyllum Afrocarpus Nageia Podocarpus Cupressales Sciadopityaceae Sciadopitys Taxaceae Cephalotaxeae Cephalotaxus Taxoideae Amentotaxus Torreya Austrotaxus Pseudotaxus Taxus Cupressaceae Cunninghamioideae Cunninghamia Taiwanioideae Taiwania Athrotaxidoideae Athrotaxis Sequoioideae Metasequoia Sequoiadendron Sequoia Taxodioideae Cryptomeria Glyptostrobus Taxodium Callitroideae Papuacedrus Austrocedrus Pilgerodendron Libocedrus Diselma Fitzroya Widdringtonia Neocallitropsis Callitris Cupressoideae Thujopsis Thuja Chamaecyparis Tetraclinis Microbiota Platycladus Calocedrus Cupressus Xanthocyparis Hesperocyparis Juniperus

v t e Extant Cupressaceae species
Subfamily Athrotaxidoideae	Athrotaxis A. cupressoides A. selaginoides A. laxifolia
Subfamily Callitroideae	Actinostrobus A. acuminatus A. arenarius A. pyramidalis Austrocedrus A. chilensis Callitris C. baileyi C. canescens C. columellaris C. drummondii C. endlicheri C. macleayana C. monticola C. muelleri C. neocaledonica C. oblonga C. preissii C. rhomboidea C. roei C. sulcata C. verrucosa Diselma D. archeri Fitzroya F. cupressoides Libocedrus L. austrocaledonicus L. bidwillii L. chevalieri L. plumosa L. yateensis Neocallitropsis N. pancheri Papuacedrus P. papuana Pilgerodendron P. uviferum Widdringtonia W. cedarbergensis W. nodiflora W. schwarzii W. whytei
Subfamily Cunninghamioideae	Cunninghamia C. konishii C. lanceolata
Subfamily Cupressoideae	Callitropsis C. nootkatensis Calocedrus C. decurrens C. formosana C. macrolepis C. rupestris Chamaecyparis C. formosensis C. lawsoniana C. obtusa C. pisifera C. taiwanensis C. thyoides Cupressus C. atlantica C. austrotibetica C. cashmeriana C. chengiana C. duclouxiana C. dupreziana C. funebris C. gigantea C. sempervirens C. tonkinensis C. torulosa C. vietnamensis Hesperocyparis H. abramsiana H. arizonica H. bakeri H. benthamii H. forbesii H. glabra H. goveniana H. guadalupensis H. lusitanica H. macnabiana H. macrocarpa H. montana H. nevadensis H. pygmaea H. revealiana H. sargentii H. stephensonii Fokienia F. hodginsii Juniperus Section Juniperus J.  brevifolia J.  cedrus J. communis J. conferta J. drupacea J.  formosana J.  lutchuensis J.  macrocarpa J.  oxycedrus J. rigida Section Sabina Old World Species: J.  chinensis J.  convallium J.  excelsa J.  foetidissima J.  indica J.  komarovii J.  phoenicea J.  pingii J.  procera J.  procumbens J.  pseudosabina J.  recurva J.  sabina J.  saltuaria J.  semiglobosa J.  squamata J.  thurifera J.  tibetica J.  wallichiana New World Species: J.  angosturana J.  ashei J.  arizonica J.  barbadensis J.  bermudiana J.  blancoi J.  californica J.  coahuilensis J.  comitana J.  deppeana J.  durangensis J.  flaccida J.  gamboana J.  horizontalis J.  jaliscana J.  monosperma J.  monticola J.  occidentalis J.  osteosperma J.  pinchotii J.  saltillensis J.  scopulorum J.  standleyi J.  virginiana J.  zanonii Microbiota M. decussata Platycladus P. orientalis Tetraclinis T. articulata Thuja T. koraiensis T. occidentalis T. plicata T. standishii T. sutchuenensis Thujopsis T. dolabrata Xanthocyparis X. vietnamensis
Subfamily Sequoioideae	Metasequoia M. glyptostroboides Sequoia S. sempervirens Sequoiadendron S. giganteum
Subfamily Taiwanioideae	Taiwania T. cryptomerioides
Subfamily Taxodioideae	Cryptomeria C. japonica Glyptostrobus G. pensilis Taxodium T. ascendens T. distichum T. mucronatum

Taxon identifiers
Papuacedrus papuana	Wikidata: Q133224 Wikispecies: Papuacedrus papuana CoL: 75LYL EoL: 1061650 EPPO: PPCTO GBIF: 2684222 GRIN: 26731 iNaturalist: 135865 IPNI: 294873-1 IUCN: 42260 NCBI: 103977 NZOR: 991ca2a2-5de2-4531-ac9c-dbb9341d75fe Open Tree of Life: 791271 Plant List: kew-2411533 POWO: urn:lsid:ipni.org:names:294873-1 Tropicos: 9400760 WFO: wfo-0000396781
Libocedrus papuana	Wikidata: Q15043538 CoL: 728DX GBIF: 2684225 GRIN: 451742 IPNI: 262473-1 POWO: urn:lsid:ipni.org:names:262473-1 Tropicos: 9400405 WFO: wfo-0000358629