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==Taxonomy== | ==Taxonomy== | ||
Although the family was first published by ] and ]<ref>{{Cite book| |
Although the family was first published by ] and ]<ref>{{Cite book|last1=Metcalf Collection (North Carolina State University).|url=http://www.biodiversitylibrary.org/bibliography/34265|title=Handbuch der palaeontologie. Unter mitwirkung von W. Ph. Schimper; hrsg. von Karl A. Zittel.|last2=Schenk|first2=August|last3=Schimper|first3=Wilhelm Philip|last4=Scudder|first4=Samuel Hubbard|last5=Zittel|first5=Karl Alfred von|date=1880|publisher=R. Oldenbourg|location=München|doi=10.5962/bhl.title.34265}}</ref> as Stangerieae, the name Stangeriaceae was used by ] (who was unaware of previous uses) to include only the genus ''Stangeria.''<ref>{{Cite journal|last1=Johnson|first1=L A S|last2=Johnson|first2=L. A. S.|date=1959|title=The families of cycads and the Zamiaceae of Australia|url=https://www.biodiversitylibrary.org/part/47364|journal=Proceedings of the Linnean Society of New South Wales|volume=84|pages=64–117}}</ref> Later, Stevenson expanded the family to include ''Bowenia.''<ref>{{Cite journal|last=Stevenson|first=Dennis Wm.|date=1990-03-07|title=Morphology and Systematics of the Cycadales|url=http://dx.doi.org/10.21135/893273507.003|journal=The Biology, Structure, and Systematics of the Cycadales: Proceedings of the Symposium CYCAD 87|pages=8–55|publisher=The New York Botanical Garden Press|doi=10.21135/893273507.003|isbn=978-0-89327-350-7}}</ref><ref name=":0" /> This decision was based on some shared characters (]) such as the presence of fused vacularized ]s, the lack or irregular production of ]s, and a few other anatomical and morphological traits.<ref name=":0">{{Cite journal|last=Stevenson|first=Dennis WM.|date=1992-04-01|title=A formal classification of the extant cycads|url=https://doi.org/10.2307/2806837|journal=Brittonia|language=en|volume=44|issue=2|pages=220–223|doi=10.2307/2806837|jstor=2806837|s2cid=41438950|issn=1938-436X}}</ref> Later molecular<ref>{{Cite journal|last1=Salas-Leiva|first1=Dayana E.|last2=Meerow|first2=Alan W.|last3=Calonje|first3=Michael|last4=Griffith|first4=M. Patrick|last5=Francisco-Ortega|first5=Javier|last6=Nakamura|first6=Kyoko|last7=Stevenson|first7=Dennis W.|last8=Lewis|first8=Carl E.|last9=Namoff|first9=Sandra|date=2013-11-01|title=Phylogeny of the cycads based on multiple single-copy nuclear genes: congruence of concatenated parsimony, likelihood and species tree inference methods|url=https://academic.oup.com/aob/article/112/7/1263/2768918|journal=Annals of Botany|language=en|volume=112|issue=7|pages=1263–1278|doi=10.1093/aob/mct192|issn=0305-7364|pmc=3806525|pmid=23997230}}</ref><ref>{{Cite journal|last1=Rai|first1=Hardeep S.|last2=O’Brien|first2=Heath E.|last3=Reeves|first3=Patrick A.|last4=Olmstead|first4=Richard G.|last5=Graham|first5=Sean W.|date=2003-11-01|title=Inference of higher-order relationships in the cycads from a large chloroplast data set|url=http://www.sciencedirect.com/science/article/pii/S1055790303001313|journal=Molecular Phylogenetics and Evolution|language=en|volume=29|issue=2|pages=350–359|doi=10.1016/S1055-7903(03)00131-3|pmid=13678689|issn=1055-7903}}</ref><ref>{{Cite journal|last1=Chaw|first1=Shu-Miaw|last2=Walters|first2=Terrence W.|last3=Chang|first3=Chien-Chang|last4=Hu|first4=Shu-Hsuan|last5=Chen|first5=Shin-Hsiao|date=2005-10-01|title=A phylogeny of cycads (Cycadales) inferred from chloroplast matK gene, trnK intron, and nuclear rDNA ITS region|url=http://www.sciencedirect.com/science/article/pii/S1055790305000084|journal=Molecular Phylogenetics and Evolution|language=en|volume=37|issue=1|pages=214–234|doi=10.1016/j.ympev.2005.01.006|pmid=16182153|issn=1055-7903}}</ref> evidence suggested that the two genera of the Stangeriaceae belonged in different positions within the ], thus leading other authors to propose dissolving the family.<ref>{{Cite journal|last1=Christenhusz|first1=M. J. M.|last2=Reveal|first2=J. L.|last3=Farjon|first3=A.|last4=Gardner|first4=M. F.|last5=Mill|first5=R. R.|last6=Chase|first6=M. W.|date=2011-02-18|title=A new classification and linear sequence of extant gymnosperms|url=http://biotaxa.org/Phytotaxa/article/view/phytotaxa.19.1.3|journal=Phytotaxa|volume=19|issue=1|pages=55|doi=10.11646/phytotaxa.19.1.3|issn=1179-3163|doi-access=free}}</ref> | ||
==Genera== | ==Genera== |
Revision as of 05:41, 23 January 2021
Stangeriaceae | |
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Stangeria eriopus in coastal lowland forest, South Africa | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Cycadophyta |
Class: | Cycadopsida |
Order: | Cycadales |
Suborder: | Zamiineae |
Family: | Stangeriaceae Schimp. & Schenk |
Genera | |
Stangeriaceae is the smallest family of the cycads, including only two extant genera, Stangeria and Bowenia.
Taxonomy
Although the family was first published by Schimper and Schenk as Stangerieae, the name Stangeriaceae was used by Johnson (who was unaware of previous uses) to include only the genus Stangeria. Later, Stevenson expanded the family to include Bowenia. This decision was based on some shared characters (synapomorphies) such as the presence of fused vacularized stipules, the lack or irregular production of cataphylls, and a few other anatomical and morphological traits. Later molecular evidence suggested that the two genera of the Stangeriaceae belonged in different positions within the Zamiaceae, thus leading other authors to propose dissolving the family.
Genera
- Subfamily Stangerioideae
- Subfamily Bowenioideae
- Bowenia Hooker ex Hooker f. (2 species)
Distribution
The genus Stangeria occurs in South Africa, in the Kwa-Zulu Natal and Eastern Cape regions, while both species of Bowenia occur in Queensland, Australia.
References
- Metcalf Collection (North Carolina State University).; Schenk, August; Schimper, Wilhelm Philip; Scudder, Samuel Hubbard; Zittel, Karl Alfred von (1880). Handbuch der palaeontologie. Unter mitwirkung von W. Ph. Schimper; hrsg. von Karl A. Zittel. München: R. Oldenbourg. doi:10.5962/bhl.title.34265.
- Johnson, L A S; Johnson, L. A. S. (1959). "The families of cycads and the Zamiaceae of Australia". Proceedings of the Linnean Society of New South Wales. 84: 64–117.
- Stevenson, Dennis Wm. (1990-03-07). "Morphology and Systematics of the Cycadales". The Biology, Structure, and Systematics of the Cycadales: Proceedings of the Symposium CYCAD 87. The New York Botanical Garden Press: 8–55. doi:10.21135/893273507.003. ISBN 978-0-89327-350-7.
- ^ Stevenson, Dennis WM. (1992-04-01). "A formal classification of the extant cycads". Brittonia. 44 (2): 220–223. doi:10.2307/2806837. ISSN 1938-436X. JSTOR 2806837. S2CID 41438950.
- Salas-Leiva, Dayana E.; Meerow, Alan W.; Calonje, Michael; Griffith, M. Patrick; Francisco-Ortega, Javier; Nakamura, Kyoko; Stevenson, Dennis W.; Lewis, Carl E.; Namoff, Sandra (2013-11-01). "Phylogeny of the cycads based on multiple single-copy nuclear genes: congruence of concatenated parsimony, likelihood and species tree inference methods". Annals of Botany. 112 (7): 1263–1278. doi:10.1093/aob/mct192. ISSN 0305-7364. PMC 3806525. PMID 23997230.
- Rai, Hardeep S.; O’Brien, Heath E.; Reeves, Patrick A.; Olmstead, Richard G.; Graham, Sean W. (2003-11-01). "Inference of higher-order relationships in the cycads from a large chloroplast data set". Molecular Phylogenetics and Evolution. 29 (2): 350–359. doi:10.1016/S1055-7903(03)00131-3. ISSN 1055-7903. PMID 13678689.
- Chaw, Shu-Miaw; Walters, Terrence W.; Chang, Chien-Chang; Hu, Shu-Hsuan; Chen, Shin-Hsiao (2005-10-01). "A phylogeny of cycads (Cycadales) inferred from chloroplast matK gene, trnK intron, and nuclear rDNA ITS region". Molecular Phylogenetics and Evolution. 37 (1): 214–234. doi:10.1016/j.ympev.2005.01.006. ISSN 1055-7903. PMID 16182153.
- Christenhusz, M. J. M.; Reveal, J. L.; Farjon, A.; Gardner, M. F.; Mill, R. R.; Chase, M. W. (2011-02-18). "A new classification and linear sequence of extant gymnosperms". Phytotaxa. 19 (1): 55. doi:10.11646/phytotaxa.19.1.3. ISSN 1179-3163.
Taxon identifiers | |
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Stangeriaceae |
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