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{{Short description|Family of flowering plants in the order Asparagales}}
⚫
{{Use dmy dates|date=October 2019}}
{{Automatic taxobox
{{Automatic taxobox
⚫
|image = Asphodelus macrocarpus (1).jpg
⚫
|image_caption = ''[[Asphodelus macrocarpus]]''
|taxon = Asphodelaceae
|taxon = Asphodelaceae
⚫
|authority = [[Antoine Laurent de Jussieu|Juss.]]<ref name=APW_Asphodelaceae/>
⚫
|image = Liliaceae - Asphodelus macrocarpus-1.JPG
⚫
|image_caption = ''[[Asphodelus macrocarpus]]''
⚫
|authority = [[Barthélemy Charles Joseph Dumortier|Dumort.]]<ref name=APW_Asphodelaceae/>
|subdivision_ranks = Subfamilies
|subdivision_ranks = Subfamilies
|subdivision =
|subdivision =
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* [[Hemerocallidoideae]]
* [[Hemerocallidoideae]]
* [[Xanthorrhoeoideae]]
* [[Xanthorrhoeoideae]]
For genera, see article.
For genera, see section {{slink||Genera}}.
}}
}}


'''Asphodelaceae''' is a [[Family (biology)|family]] of [[flowering plants]] in the [[Order (biology)|order]] [[Asparagales]].<ref name=APG2016/> Until 2016, the name '''Xanthorrhoeaceae''' was used for the family in the APG classification system.<ref name=APG2009/> Such a family has been recognized by most [[taxonomist]]s, but the [[Circumscription (taxonomy)|circumscription]] has varied widely. In its current [[Circumscription (taxonomy)|circumscription]] in the [[APG IV system]], it includes about 40 genera and 900 known species.<ref name=Christenhusz-Byng2016/>
'''Asphodelaceae''' is a [[Family (biology)|family]] of [[flowering plant]]s in the [[Order (biology)|order]] [[Asparagales]].<ref name=APG2016/> Such a family has been recognized by most [[taxonomist]]s, but the [[Circumscription (taxonomy)|circumscription]] has varied widely. In its current [[Circumscription (taxonomy)|circumscription]] in the [[APG IV system]], it includes about 40 [[Genus|genera]] and 900 known species.<ref name=Christenhusz-Byng2016/> The type genus is ''[[Asphodelus]]''.

As defined by the [[Angiosperm Phylogeny Group]] in 2009 (the [[APG III system]]), the family consisted of three subfamilies: [[Asphodeloideae]], [[Hemerocallidoideae]] and [[Xanthorrhoeoideae]]. Earlier these three had been treated as separate families.<ref name=Chase2009/> The family Asphodelaceae has now been proposed to be a [[nomen conservandum]] (conserved name), and the proposal has been recommended for ratification in 2017. In that case, Asphodelaceae will have priority over Xanthorrhoeaceae. This is reflected in the APG IV family lists.<ref name=APG2016/>

The family has a wide, but scattered [[Range (biology)|distribution]] throughout the [[tropics]] and [[temperate zones]]. Many of the species are [[Horticulture|cultivated]] as [[Ornamental plant|ornamentals]]. A few are grown [[Commerce|commercially]] for [[Floriculture|cut flowers]]. Two species of ''[[Aloe]]'' are grown for their leaf [[Plant sap|sap]], which has [[medicine|medicinal]] and [[Cosmetics|cosmetic]] uses. ''Xanthorrhoea'' is [[endemism|endemic]] to [[Australia]].


The family has a wide, but scattered, [[Range (biology)|distribution]] throughout the [[tropics]] and [[temperate zones]]; for example, ''[[Xanthorrhoea]]'' is [[endemism|endemic]] to [[Australia]], while the ''[[Aloe|Aloes]]'' are unique to Africa and parts of the [[Arabian Peninsula]]. Many of the family's genera are [[Horticulture|cultivated]] as [[Ornamental plant|ornamentals]], with some being highly collectible and sought-after, such as ''[[Haworthia]]'' and ''[[Gasteria]]'', as well as their [[Hybrid (biology)|intergeneric hybrids]] with ''Aloe'' (''[[× Gasteraloe|x Gasteraloe]]'', x ''Gastorthia'', x ''Haworthaloe'', etc.), while a few are grown [[Commerce|commercially]] for [[Floriculture|cut flowers]]. Two species of ''Aloe'', ''[[Aloe vera|A. vera]]'' and ''[[Aloe maculata|A. maculata]]'', are grown for their leaf [[Plant sap|sap]], which contains [[Digestive enzyme|digestive enzymes]], and has [[medicine|medicinal]] and [[Cosmetics|cosmetic]] applications.
⚫
In some of the older [[list of systems of plant taxonomy|systems of plant taxonomy]], such as the [[Cronquist system]], the plants that now form the family [[Dasypogonaceae]] were also considered to belong to this family. [[Molecular phylogenetic]] [[Research|studies]] have shown that Dasypogonaceae belongs to the [[commelinids]] and is therefore not even in the same order as Asphodelaceae.


==Description==
==Description==
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|label1='''Asphodelaceae'''
|label1='''Asphodelaceae'''
|1={{clade
|1={{clade
|label1=Asphodeloideae
|label1=[[Asphodeloideae]]
|1={{clade
|1={{clade
|1={{clade
|1={{clade
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|2=''[[Jodrellia]]''
|2=''[[Jodrellia]]''
}}
}}
|label2=[[Aloeae]]
|2={{clade
|2={{clade
|1=''[[Aloe]]''
|1=''[[Aloidendron]]''
|2=''[[Astroloba]]''
|2={{clade
|3=''[[Chamaealoe]]''
|1={{clade
|4=''[[Gasteria]]''
|1=''[[Kumara (plant)|Kumara]]''
|5=''[[Haworthia]]''
|2=''[[Haworthia]]''
|6=''[[Lomatophyllum]]''
}}
|7=''[[Poellnitzia]]''
|2={{clade
|1=''[[Aloiampelos]]''
|2={{clade
|1=''[[Aloe]]''
|2={{clade
|1={{clade
|1=''[[Astroloba]]''
|2={{clade
|1=''[[Aristaloe]]''
|2={{clade
|1=''[[Gonialoe]]''
|2=''[[Tulista]]''
}}
}}
}}
|2={{clade
|1=''[[Haworthiopsis]]''
|2=''[[Gasteria]]''
}}
}}
}}
}}
}}
}}
}}
}}
}}
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}}
}}
|2={{clade
|2={{clade
|label1=Xanthorrhoeoideae
|label1=[[Xanthorrhoeoideae]]
|1={{clade
|1={{clade
|1=''[[Xanthorrhoea]]''
|1=''[[Xanthorrhoea]]''
}}
}}
|label2=Hemerocallidoideae
|label2=[[Hemerocallidoideae]]
|2={{clade
|2={{clade
|1={{clade
|1={{clade
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|1=''[[Arnocrinum]]''
|1=''[[Arnocrinum]]''
|2={{clade
|2={{clade
|1=''[[Hensmannia]]''
|1=''[[Hensmania]]''
|2={{clade
|2={{clade
|1=''[[Stawellia]]''
|1=''[[Stawellia]]''
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===History===
===History===
The family now called Asphodelaceae has had a complex history; its [[circumscription (taxonomy)|circumscription]] and placement in an order have varied widely.
The family now called Asphodelaceae has had a complex history; its [[circumscription (taxonomy)|circumscription]] and placement in an order have varied widely.


In the [[Cronquist system]] of 1981, members of the Asphodelaceae were placed in the order [[Liliales]].<ref name=Cronquist1981/><ref name=Beadle1981/> Cronquist had difficulty classifying the less obviously delineated [[lilioid monocot]]s; consequently, he placed taxa from both the modern orders Asparagales and Liliales into a single family [[Liliaceae]].<ref name=Rudall2003/>
In the [[Cronquist system]] of 1981, members of the Asphodelaceae were placed in the order [[Liliales]].<ref name=Cronquist1981/><ref name=Beadle1981/> Cronquist had difficulty classifying the less obviously delineated [[lilioid monocot]]s; consequently, he placed taxa from both the modern orders Asparagales and Liliales into a single family [[Liliaceae]].<ref name=Rudall2003/>


⚫
In some of the older [[list of systems of plant taxonomy|systems of plant taxonomy]], such as the Cronquist system, the plants that now form the family [[Dasypogonaceae]] were also considered to belong to this family. [[Molecular phylogenetic]] [[Research|studies]] have shown that Dasypogonaceae belongs to the [[commelinids]] and is therefore not even in the same order as Asphodelaceae.
⚫
The decision to group three formerly separate families, Asphodelaceae sensu stricto, Hemerocallidaceae and Xanthorrhoeaceae, into a single family first occurred as an option in the APG II system of 2003. The name used for the broader family was then Xanthorrhoeaceae;<ref name=APG2003/> earlier references to the Xanthorrhoeaceae relate only to the subfamily Xanthorrhoeoideae. The changes were a consequence of improvement in molecular and morphological analysis and also a reflection of the increased emphasis on placing families within an appropriate order.<ref name=APG2009/><ref name=Rudall2003/><ref name=APG1998/>


⚫
The decision to group three formerly separate families, Asphodelaceae sensu stricto, Hemerocallidaceae and Xanthorrhoeaceae, into a single family first occurred as an option in the APG II system of 2003. The name used for the broader family was then Xanthorrhoeaceae;<ref name=APG2003/> earlier references to the Xanthorrhoeaceae relate only to the subfamily Xanthorrhoeoideae. The changes were a consequence of improvement in molecular and morphological analysis and also a reflection of the increased emphasis on placing families within an appropriate order.<ref name=APG2009/><ref name=Rudall2003/><ref name=APG1998/>
⚫
The APG III system of 2009 dropped the option of keeping the three families separate, using only the expanded family, still under the name Xanthorrhoeaceae.<ref name=APG2009/> Anticipating a decision to conserve the name Asphodelaceae over Xanthorrhoeaceae, the [[APG IV system]] uses Asphodelaceae as the name for the expanded family.<ref name=APG2016/>

⚫
The APG III system of 2009 dropped the option of keeping the three families separate, using only the expanded family, still under the name Xanthorrhoeaceae.<ref name=APG2009/> Anticipating a decision to conserve the name Asphodelaceae over Xanthorrhoeaceae (which came to pass in 2017), the [[APG IV system]] uses Asphodelaceae as the name for the expanded family.<ref name=APG2016/>
The three previous families were then the subfamilies [[Asphodeloideae]], [[Hemerocallidoideae]] and [[Xanthorrhoeoideae]]. Earlier these three had been treated as separate families.<ref name=Chase2009/>

The family Asphodelaceae was made a [[nomen conservandum]] (conserved name) in 2017. Previously, the name '''Xanthorrhoeaceae''' had priority.<ref name=APG2009/> This was anticipated in the APG IV family lists.<ref name=APG2016/>


===Genera===
===Genera===
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{| border="0"
{| border="0"
| valign="top" |
| valign="top" |
Subfamily '''[[Asphodeloideae]]''' <small>Burnett</small>&#160;&#160;
Subfamily '''[[Asphodeloideae]]''' <small>Burnett</small>&nbsp;&nbsp;
*''[[Aloe]]'' <small>L.</small>
*''[[Aloe]]'' <small>L.</small>
*''[[Astroloba]]'' <small>Uitewaal</small>
*''[[Astroloba]]'' <small>Uitewaal</small>
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*''[[Eremurus]]'' <small>M.Bieb.</small>
*''[[Eremurus]]'' <small>M.Bieb.</small>
*''[[Gasteria]]'' <small>Duval</small>
*''[[Gasteria]]'' <small>Duval</small>
*''[[Gonialoe]]'' <small>(Baker) Boatwr. & J.C.Manning</small>
*''[[Haworthia]]'' <small>Duval</small>
*''[[Haworthia]]'' <small>Duval</small>
*''[[Jodrellia]]'' <small>Baijnath</small>
*''[[Jodrellia]]'' <small>Baijnath</small>
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* ''Poellnitzia'' <small>Uitewaal</small> – synonym of ''Astroloba''
* ''Poellnitzia'' <small>Uitewaal</small> – synonym of ''Astroloba''
*''[[Trachyandra]]'' <small>Kunth</small>
*''[[Trachyandra]]'' <small>Kunth</small>
*''[[Tulista]]'' <small>Raf.</small>
| valign="top" |
| valign="top" |
Subfamily '''[[Hemerocallidoideae]]''' <small>Lindley</small>&#160;&#160;
Subfamily '''[[Hemerocallidoideae]]''' <small>Lindley</small>&nbsp;&nbsp;
*''[[Agrostocrinum]]'' <small>F.Muell.</small>
*''[[Agrostocrinum]]'' <small>F.Muell.</small>
*''[[Arnocrinum]]'' <small>Endl.</small>
*''[[Arnocrinum]]'' <small>Endl.</small>
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* ''[[Xanthorrhoea]]'' <small>Sm.</small>
* ''[[Xanthorrhoea]]'' <small>Sm.</small>
|}
|}

The nothogenus [[× Gasteraloe|''Gasteraloe'']] contains hybrids between ''Aloe'' and ''Gasteria''.


The genus ''[[Xeronema]]'' is now placed in a separate family, the [[Xeronemataceae]].<ref name=APG2016/>
The genus ''[[Xeronema]]'' is now placed in a separate family, the [[Xeronemataceae]].<ref name=APG2016/>
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==References==
==References==
{{Reflist|2|refs=
{{Reflist|2|refs=
<ref name=APG1998>{{Cite journal |author=Angiosperm Phylogeny Group |year=1998 |title=An ordinal classification of the families of flowering plants |journal=Annals of the Missouri Botanical Garden |volume=85 |pages=531–553 |doi=10.2307/2992015}}</ref>
<ref name=APG1998>{{Cite journal |author=Angiosperm Phylogeny Group |year=1998 |title=An ordinal classification of the families of flowering plants |journal=Annals of the Missouri Botanical Garden |volume=85 |issue=4 |pages=531–553 |doi=10.2307/2992015|jstor=2992015 |url=https://www.biodiversitylibrary.org/part/2234 }}</ref>


<ref name=APG2003>{{Cite journal |last=Angiosperm Phylogeny Group |year=2003 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II |journal=Botanical Journal of the Linnean Society |volume=141 |pages=399–436|url=http://w3.ufsm.br/herb/An%20update%20of%20the%20Angiosperm%20Phylogeny%20Group.pdf |doi=10.1046/j.1095-8339.2003.t01-1-00158.x}}</ref>
<ref name=APG2003>{{Cite journal|last=Angiosperm Phylogeny Group |year=2003 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II |journal=Botanical Journal of the Linnean Society |volume=141 |issue=4 |pages=399–436 |doi=10.1046/j.1095-8339.2003.t01-1-00158.x |doi-access=free }}</ref>


<ref name=APG2009>{{Cite journal |last=Angiosperm Phylogeny Group |year=2009 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III |journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=105–121 |url=http://www3.interscience.wiley.com/journal/122630309/abstract |accessdate=2010-12-10 |doi=10.1111/j.1095-8339.2009.00996.x }}</ref>
<ref name=APG2009>{{Cite journal |last=Angiosperm Phylogeny Group |year=2009 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III |journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=105–121 |doi=10.1111/j.1095-8339.2009.00996.x |doi-access=free |hdl=10654/18083 |hdl-access=free }}</ref>


<ref name=APG2016>{{Cite journal |last=Angiosperm Phylogeny Group |year=2016 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV |journal=Botanical Journal of the Linnean Society |volume=181 |issue=1 |pages=1–20 |doi=10.1111/boj.12385 }}</ref>
<ref name=APG2016>{{Cite journal |last=Angiosperm Phylogeny Group |year=2016 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV |journal=Botanical Journal of the Linnean Society |volume=181 |issue=1 |pages=1–20 |doi=10.1111/boj.12385 |doi-access=free }}</ref>


<ref name=APW_Asphodelaceae>{{cite web |last=Stevens |first=P.F. |work=Angiosperm Phylogeny Website |url=http://www.mobot.org/MOBOT/research/APweb/orders/asparagalesweb.htm#aspasphodelaceae |title=Asphodelaceae |publisher=Missouri Botanical Garden |accessdate=12 June 2016}}</ref>
<ref name=APW_Asphodelaceae>{{cite web |last=Stevens |first=P.F. |work=Angiosperm Phylogeny Website |url=http://www.mobot.org/MOBOT/research/APweb/orders/asparagalesweb.htm#aspasphodelaceae |title=Asphodelaceae |publisher=Missouri Botanical Garden |access-date=12 June 2016}}</ref>


<ref name=APW_Asparagales>{{cite web |last=Stevens |first=P.F. |work=Angiosperm Phylogeny Website |url=http://www.mobot.org/MOBOT/Research/APweb/orders/asparagalesweb.htm#Asparagales |title=Asparagales |publisher=Missouri Botanical Garden |accessdate=12 June 2016}}</ref>
<ref name=APW_Asparagales>{{cite web |last=Stevens |first=P.F. |work=Angiosperm Phylogeny Website |url=http://www.mobot.org/MOBOT/Research/APweb/orders/asparagalesweb.htm#Asparagales |title=Asparagales |publisher=Missouri Botanical Garden |access-date=12 June 2016}}</ref>


<ref name=Beadle1981>{{Cite book |last=Beadle |first=N.C.W. |year=1981 |title=The Vegetation of Australia |publisher=Cambridge University Press |location=London}}</ref>
<ref name=Beadle1981>{{Cite book |last=Beadle |first=N.C.W. |year=1981 |title=The Vegetation of Australia |publisher=Cambridge University Press |location=London}}</ref>
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<!--<ref name=Bedford1986>{{Cite book|last=Bedford |first= D. J. |author2=Lee A. T. |author3=Macfarlane T. D. |author4=Henderson R. J. F. |author5=George A. S.|title= 'Xanthorrhoeaceae' in Flora of Australia: Iridaceae to Dioscoreaceae |volume= 46|year=1986 |publisher=Australian Government Publishing Service |location= Canberra |pages= 88–171}}</ref>-->
<!--<ref name=Bedford1986>{{Cite book|last=Bedford |first= D. J. |author2=Lee A. T. |author3=Macfarlane T. D. |author4=Henderson R. J. F. |author5=George A. S.|title= 'Xanthorrhoeaceae' in Flora of Australia: Iridaceae to Dioscoreaceae |volume= 46|year=1986 |publisher=Australian Government Publishing Service |location= Canberra |pages= 88–171}}</ref>-->


<ref name=Chase2000>{{Cite journal |doi=10.1006/anbo.2000.1262 |last=Chase |first=M.W. |last2=De Bruijn |first2=A.Y. |last3=Cox |first3=A.V. |last4=Reeves |first4=G. |last5=Rudall |first5=P. |last6=Johnson |first6=M.A.T. |last7=Eguiarte |first7=L.E. |year=2000 |title=Phylogenetics of Asphodelaceae (Asparagales): An analysis of Plastid rbcL and trnL-F DNA sequences |journal=Annals of Botany |volume=86 |issue=5|pages=935–951 |lastauthoramp=yes }}</ref>
<ref name=Chase2000>{{Cite journal |doi=10.1006/anbo.2000.1262 |last1=Chase |first1=M.W. |last2=De Bruijn |first2=A.Y. |last3=Cox |first3=A.V. |last4=Reeves |first4=G. |last5=Rudall |first5=P. |last6=Johnson |first6=M.A.T. |last7=Eguiarte |first7=L.E. |year=2000 |title=Phylogenetics of Asphodelaceae (Asparagales): An analysis of Plastid rbcL and trnL-F DNA sequences |journal=Annals of Botany |volume=86 |issue=5|pages=935–951 |name-list-style=amp |doi-access=free |bibcode=2000AnBot..86..935C }}</ref>


<ref name=Chase2009>{{Cite journal |last=Chase|first=M. W. |last2=Reveal |first2=J.L. |last3=Fay |first3=M.F. |date=August 2009 |title=A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae|journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=132–136 |publisher=The Linnean Society of London |doi=10.1111/j.1095-8339.2009.00999.x |lastauthoramp=yes}}</ref>
<ref name=Chase2009>{{Cite journal |last1=Chase|first1=M. W. |last2=Reveal |first2=J.L. |last3=Fay |first3=M.F. |date=August 2009 |title=A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae|journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=132–136 |doi=10.1111/j.1095-8339.2009.00999.x |name-list-style=amp|doi-access=free }}</ref>


<ref name=Christenhusz-Byng2016>{{cite journal |last1=Christenhusz |first1=M.J.M. |last2=Byng |first2=J.W. |year=2016 |title=The number of known plants species in the world and its annual increase |journal=Phytotaxa |volume=261 |issue=3 |pages=201–217 |url=http://biotaxa.org/Phytotaxa/article/download/phytotaxa.261.3.1/20598 |doi=10.11646/phytotaxa.261.3.1 |lastauthoramp=yes }}</ref>
<ref name=Christenhusz-Byng2016>{{cite journal |last1=Christenhusz |first1=M.J.M. |last2=Byng |first2=J.W. |year=2016 |title=The number of known plants species in the world and its annual increase |journal=Phytotaxa |volume=261 |issue=3 |pages=201–217 |url=http://biotaxa.org/Phytotaxa/article/download/phytotaxa.261.3.1/20598 |doi=10.11646/phytotaxa.261.3.1 |name-list-style=amp |doi-access=free }}</ref>


<ref name=Cronquist1981>{{Cite book |last=Cronquist |first=A. |year=1981 |title=An Integrated System of Classification of Flowering Plants |publisher=Columbia University Press |location=New York}}</ref>
<ref name=Cronquist1981>{{Cite book |last=Cronquist |first=A. |year=1981 |title=An Integrated System of Classification of Flowering Plants |url=https://archive.org/details/integratedsystem0000cron |url-access=registration |publisher=Columbia University Press |location=New York|isbn=9780231038805 }}</ref>


<ref name=Devey2006>Dion S. Devey, Ilia Leitch, Paula J. Rudall, J. Chris Pires, Yohan Pillon, and Mark W. Chase. 2006. "Systematics of Xanthorrhoeaceae sensu lato, with an emphasis on ''Bulbine''". ''Aliso'' '''22'''(''Monocots: Comparative Biology and Evolution''):345-351. {{ISSN|0065-6275}}.</ref>
<ref name=Devey2006>Dion S. Devey, Ilia Leitch, Paula J. Rudall, J. Chris Pires, Yohan Pillon, and Mark W. Chase. 2006. "Systematics of Xanthorrhoeaceae sensu lato, with an emphasis on ''Bulbine''". ''Aliso'' '''22'''(''Monocots: Comparative Biology and Evolution''):345-351. {{ISSN|0065-6275}}.</ref>


<ref name=Kubitzki1998>{{cite book |editor-first=Klaus |editor-last=Kubitski |title=The Families and Genera of Vascular Plants volume III |publisher=Springer-Verlag |publication-place=Berlin;Heidelberg, Germany |isbn=978-3-540-64060-8}}</ref>
<ref name=Kubitzki1998>{{cite book |editor-first=Klaus |editor-last=Kubitski |title=The Families and Genera of Vascular Plants volume III |publisher=Springer-Verlag |location=Berlin;Heidelberg, Germany |isbn=978-3-540-64060-8|date=27 August 1998 }}</ref>


<ref name=Rudall1997>{{Citation |last=Rudall |first=P. |last2=Furness |first2=C.A. |last3=Chase |first3=M.W. |last4=Fay |first4=M.F. |year=1997 |title=Microsporogenesis and pollen sulcus type in Asparagales (Lilianae) |journal=Canad. J. Bot. |issue=75 |pages=408–430 |lastauthoramp=yes }}</ref>
<ref name=Rudall1997>{{Citation |last1=Rudall |first1=P. |last2=Furness |first2=C.A. |last3=Chase |first3=M.W. |last4=Fay |first4=M.F. |year=1997 |title=Microsporogenesis and pollen sulcus type in Asparagales (Lilianae) |journal=Can. J. Bot. |volume=75 |issue=3 |pages=408–430 |name-list-style=amp |doi=10.1139/b97-044 |bibcode=1997CaJB...75..408R }}</ref>


<ref name=Rudall2003>{{Cite journal |doi=10.1663/0006-8101(2002)068[0488:UFSAIE]2.0.CO;2 |last=Rudall |first=P. J. |year=2003 |title=Unique Flower Structures and Iterative Evolutionary Themes in Asparagales: Insights from a Morphological Cladistic Analysis |journal=The Botanical Review |volume=68 |issue=4 |pages=488–509 }}</ref>
<ref name=Rudall2003>{{Cite journal |doi=10.1663/0006-8101(2002)068[0488:UFSAIE]2.0.CO;2 |last=Rudall |first=P. J. |year=2003 |title=Unique Flower Structures and Iterative Evolutionary Themes in Asparagales: Insights from a Morphological Cladistic Analysis |journal=The Botanical Review |volume=68 |issue=4 |pages=488–509 |s2cid=24862159 }}</ref>


<ref name=WCSP_Xanthorrhoeaceae>Search for "Xanthorrhoeaceae", {{Citation |title=World Checklist of Selected Plant Families |publisher=[[Royal Botanic Gardens, Kew]] |url=http://apps.kew.org/wcsp/ |accessdate=2013-02-25 }}</ref>
<ref name=WCSP_Xanthorrhoeaceae>Search for "Xanthorrhoeaceae", {{Citation |title=World Checklist of Selected Plant Families |publisher=[[Royal Botanic Gardens, Kew]] |url=http://apps.kew.org/wcsp/ |access-date=25 February 2013 }}</ref>


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==External links==
==External links==
{{Commons category}}
*{{Commons category-inline}}
{{Wikispecies}}
*{{Wikispecies-inline}}
*[http://www.mobot.org/MOBOT/Research/APweb/orders/asparagalesweb.htm#Xanthorrhoeaceae Xanthorrhoeaceae] At: [http://www.mobot.org/MOBOT/Research/APweb/welcome.html Angiosperm Phylogeny Website] At: [http://www.mobot.org Missouri Botanical Garden Website]
*[http://www.mobot.org/MOBOT/Research/APweb/orders/asparagalesweb.htm#Xanthorrhoeaceae Xanthorrhoeaceae] At: [http://www.mobot.org/MOBOT/Research/APweb/welcome.html Angiosperm Phylogeny Website] At: [http://www.mobot.org Missouri Botanical Garden Website]
*[http://delta-intkey.com/angio/www/xanthorr.htm Xanthorrhoeaceae] in L. Watson and M.J. Dallwitz (1992 onwards). ''[https://web.archive.org/web/20101213041459/http://delta-intkey.com:80/angio/ The families of flowering plants]: descriptions, illustrations, identification, information retrieval.'' Version: 9 March 2006. https://web.archive.org/web/20070103200438/http://delta-intkey.com:80/
*[http://delta-intkey.com/angio/www/xanthorr.htm Xanthorrhoeaceae] in L. Watson and M.J. Dallwitz (1992 onwards). ''[https://web.archive.org/web/20101213041459/http://delta-intkey.com/angio/ The families of flowering plants]: descriptions, illustrations, identification, information retrieval.'' Version: 9 March 2006. https://web.archive.org/web/20070103200438/http://delta-intkey.com/
*[http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=27232&lvl=3&lin=f&keep=1&srchmode=1&unlock NCBI Taxonomy Browser]
*[https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=27232&lvl=3&lin=f&keep=1&srchmode=1&unlock NCBI Taxonomy Browser]
*[http://www.csdl.tamu.edu/FLORA/cgi/gateway_family?fam=Xanthorrhoeaceae links at CSDL, Texas]
*[http://www.csdl.tamu.edu/FLORA/cgi/gateway_family?fam=Xanthorrhoeaceae links at CSDL, Texas] {{Webarchive|url=https://web.archive.org/web/20081012062026/http://www.csdl.tamu.edu/FLORA/cgi/gateway_family?fam=Xanthorrhoeaceae |date=12 October 2008 }}
*[https://www.botanical-dermatology-database.info/BotDermFolder/ASPHODELACEAE.html Asphodelaceae] in [https://www.botanical-dermatology-database.info/index.html BoDD – Botanical Dermatology Database]


{{Angiosperm families}}
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[[Category:Asphodelaceae| ]]
[[Category:Asphodelaceae| ]]

Latest revision as of 01:58, 9 December 2024

Asphodelaceae
Asphodelus macrocarpus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asphodelaceae
Juss.[1]
Subfamilies

For genera, see section § Genera.

Asphodelaceae is a family of flowering plants in the order Asparagales.[2] Such a family has been recognized by most taxonomists, but the circumscription has varied widely. In its current circumscription in the APG IV system, it includes about 40 genera and 900 known species.[3] The type genus is Asphodelus.

The family has a wide, but scattered, distribution throughout the tropics and temperate zones; for example, Xanthorrhoea is endemic to Australia, while the Aloes are unique to Africa and parts of the Arabian Peninsula. Many of the family's genera are cultivated as ornamentals, with some being highly collectible and sought-after, such as Haworthia and Gasteria, as well as their intergeneric hybrids with Aloe (x Gasteraloe, x Gastorthia, x Haworthaloe, etc.), while a few are grown commercially for cut flowers. Two species of Aloe, A. vera and A. maculata, are grown for their leaf sap, which contains digestive enzymes, and has medicinal and cosmetic applications.

Description

[edit]

Members of the Asphodelaceae are diverse, with few characters uniting the three subfamilies currently recognized. The presence of anthraquinones is one common character. The flowers (the inflorescence) are typically borne on a leafless stalk (scape) which arises from a basal rosette of leaves. The individual flowers have jointed stalks (pedicels). A disk of woody tissue (a hypostase) is present at the base of the ovule.[1]

The subfamily Xanthorrhoeoideae contains only the genus Xanthorrhoea, native to Australia. Plants typically develop thick woody stems; the flowers are arranged in a dense spike. Members of the subfamily Asphodeloideae are often leaf succulents, such as aloes and haworthias, although the subfamily also includes ornamental perennials such as red hot pokers (Kniphofia). Members of the subfamily Hemerocallidoideae are varied in habit. Daylilies (Hemerocallis) are one of the widely grown members of this subfamily.[1]

Systematics

[edit]

Phylogeny

[edit]

The order Asparagales can be divided into a basal paraphyletic group, the "lower Asparagales", which includes the Asphodelaceae as defined here,[4] and a well-supported monophyletic group of "core Asparagales", comprising Amaryllidaceae sensu lato and Asparagaceae sensu lato.[5] Three separate families were at one time recognized (e.g. in the first APG system of 1998): Asphodelaceae, Hemerocallidaceae and Xanthorrhoeaceae. Molecular phylogenetic studies have shown that the three are closely related,[1][6] although Rudall considered that the combination into a single clade was not supported by morphological analysis.[7] The most recent APG classification, the APG IV system of 2016, places the three former families into a single family, the Asphodelaceae sensu lato. The former families are treated as three subfamilies: Asphodeloideae, Hemerocallidoideae and Xanthorrhoeoideae.[8]

The following phylogenetic tree for Asphodelaceae sensu lato is based on a molecular phylogenetic analysis of the DNA sequences of the chloroplast genes rbcL, matK, and ndhF.[9] All branches have at least 70% bootstrap support. Of the 36 genera recognized by the authors, 29 were sampled. Eccremis was not sampled, but is added here because it is known to be closely related to Pasithea and is often combined with it. Hodgsoniola belongs somewhere in the grade from Tricoryne to Johnsonia. The unsampled genera, Astroloba, Chortolirion and Gasteria, belong to subfamily Asphodeloideae.[10]

Asphodelaceae

History

[edit]

The family now called Asphodelaceae has had a complex history; its circumscription and placement in an order have varied widely.

In the Cronquist system of 1981, members of the Asphodelaceae were placed in the order Liliales.[11][12] Cronquist had difficulty classifying the less obviously delineated lilioid monocots; consequently, he placed taxa from both the modern orders Asparagales and Liliales into a single family Liliaceae.[7]

In some of the older systems of plant taxonomy, such as the Cronquist system, the plants that now form the family Dasypogonaceae were also considered to belong to this family. Molecular phylogenetic studies have shown that Dasypogonaceae belongs to the commelinids and is therefore not even in the same order as Asphodelaceae.

The decision to group three formerly separate families, Asphodelaceae sensu stricto, Hemerocallidaceae and Xanthorrhoeaceae, into a single family first occurred as an option in the APG II system of 2003. The name used for the broader family was then Xanthorrhoeaceae;[13] earlier references to the Xanthorrhoeaceae relate only to the subfamily Xanthorrhoeoideae. The changes were a consequence of improvement in molecular and morphological analysis and also a reflection of the increased emphasis on placing families within an appropriate order.[14][7][15]

The APG III system of 2009 dropped the option of keeping the three families separate, using only the expanded family, still under the name Xanthorrhoeaceae.[14] Anticipating a decision to conserve the name Asphodelaceae over Xanthorrhoeaceae (which came to pass in 2017), the APG IV system uses Asphodelaceae as the name for the expanded family.[2] The three previous families were then the subfamilies Asphodeloideae, Hemerocallidoideae and Xanthorrhoeoideae. Earlier these three had been treated as separate families.[8]

The family Asphodelaceae was made a nomen conservandum (conserved name) in 2017. Previously, the name Xanthorrhoeaceae had priority.[14] This was anticipated in the APG IV family lists.[2]

Genera

[edit]

The genera listed below are from the World Checklist of Selected Plant Families,[16] with the division into subfamilies based on APWeb as of December 2010.

Subfamily Asphodeloideae Burnett  

Subfamily Hemerocallidoideae Lindley  

Subfamily Xanthorrhoeoideae M.W.Chase, Reveal & M.F.Fay

The nothogenus Gasteraloe contains hybrids between Aloe and Gasteria.

The genus Xeronema is now placed in a separate family, the Xeronemataceae.[2]

References

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  1. ^ a b c d Stevens, P.F. "Asphodelaceae". Angiosperm Phylogeny Website. Missouri Botanical Garden. Retrieved 12 June 2016.
  2. ^ a b c d Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385.
  3. ^ Christenhusz, M.J.M. & Byng, J.W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  4. ^ Rudall, P.; Furness, C.A.; Chase, M.W. & Fay, M.F. (1997), "Microsporogenesis and pollen sulcus type in Asparagales (Lilianae)", Can. J. Bot., 75 (3): 408–430, Bibcode:1997CaJB...75..408R, doi:10.1139/b97-044
  5. ^ Stevens, P.F. "Asparagales". Angiosperm Phylogeny Website. Missouri Botanical Garden. Retrieved 12 June 2016.
  6. ^ Chase, M.W.; De Bruijn, A.Y.; Cox, A.V.; Reeves, G.; Rudall, P.; Johnson, M.A.T. & Eguiarte, L.E. (2000). "Phylogenetics of Asphodelaceae (Asparagales): An analysis of Plastid rbcL and trnL-F DNA sequences". Annals of Botany. 86 (5): 935–951. Bibcode:2000AnBot..86..935C. doi:10.1006/anbo.2000.1262.
  7. ^ a b c Rudall, P. J. (2003). "Unique Flower Structures and Iterative Evolutionary Themes in Asparagales: Insights from a Morphological Cladistic Analysis". The Botanical Review. 68 (4): 488–509. doi:10.1663/0006-8101(2002)068[0488:UFSAIE]2.0.CO;2. S2CID 24862159.
  8. ^ a b Chase, M. W.; Reveal, J.L. & Fay, M.F. (August 2009). "A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae". Botanical Journal of the Linnean Society. 161 (2): 132–136. doi:10.1111/j.1095-8339.2009.00999.x.
  9. ^ Dion S. Devey, Ilia Leitch, Paula J. Rudall, J. Chris Pires, Yohan Pillon, and Mark W. Chase. 2006. "Systematics of Xanthorrhoeaceae sensu lato, with an emphasis on Bulbine". Aliso 22(Monocots: Comparative Biology and Evolution):345-351. ISSN 0065-6275.
  10. ^ Kubitski, Klaus, ed. (27 August 1998). The Families and Genera of Vascular Plants volume III. Berlin;Heidelberg, Germany: Springer-Verlag. ISBN 978-3-540-64060-8.
  11. ^ Cronquist, A. (1981). An Integrated System of Classification of Flowering Plants. New York: Columbia University Press. ISBN 9780231038805.
  12. ^ Beadle, N.C.W. (1981). The Vegetation of Australia. London: Cambridge University Press.
  13. ^ Angiosperm Phylogeny Group (2003). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II". Botanical Journal of the Linnean Society. 141 (4): 399–436. doi:10.1046/j.1095-8339.2003.t01-1-00158.x.
  14. ^ a b c Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. hdl:10654/18083.
  15. ^ Angiosperm Phylogeny Group (1998). "An ordinal classification of the families of flowering plants". Annals of the Missouri Botanical Garden. 85 (4): 531–553. doi:10.2307/2992015. JSTOR 2992015.
  16. ^ Search for "Xanthorrhoeaceae", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 25 February 2013
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