Donatia: Difference between revisions
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{{Short description|Genus of flowering plants}} |
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{{For|a genus of sea sponges|Tethya}} |
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|image = Donatia novae-zelandiae.jpg |
|image = Donatia novae-zelandiae.jpg |
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|taxon = Donatia |
|taxon = Donatia |
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|authority = [[J.R.Forst.]] & [[G.Forst.]] |
|authority = [[J.R.Forst.]] & [[G.Forst.]] |
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|subdivision_ranks = Species |
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*''[[Donatia fascicularis]]'' |
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'''''Donatia''''' is a genus of two [[cushion plant]] species in the family [[Stylidiaceae]]. The name commemorates [[Vitaliano Donati]], an Italian botanist. |
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| ⚫ | ''Donatia'' has been placed in the [[subfamily]] '''Donatioideae''', described by [[Johannes Mildbraed]] in his 1908 taxonomic monograph of the family [[Stylidiaceae]]. The subfamily was created to distinguish the difference between the single [[genus]] ''Donatia'' from the five typical [[genus|genera]] of the Stylidiaceae that Mildbraed placed in the Stylidioideae subfamily.<ref name="Mildbraed">Mildbraed, J. (1908). Stylidiaceae. ''In'' Engler, A. ''Das Pflanzenreich: Regni vegetabilis conspectus'', IV. 278. Leipzig, 1908.</ref> The subfamily taxonomy represented the taxonomic uncertainty of ''Donatia'', which had at one point also been placed in the [[Saxifragaceae]].<ref name="Wagstaff and Wege">Wagstaff, S.J. and Wege, J. (2002). [http://www.amjbot.org/cgi/content/full/89/5/865 Patterns of diversification in New Zealand Stylidiaceae] {{Webarchive|url=https://web.archive.org/web/20090218000451/http://www.amjbot.org/cgi/content/full/89/5/865 |date=2009-02-18 }}. ''American Journal of Botany'', 89(5): 865-874.</ref><ref name="Good">Good, R. (1925). On the geographical distribution of the Stylidiaceae. ''New Phytologist'', 24(4): 225-240.</ref> ''Donatia'' differs sufficiently from the genera in the Stylidiaceae in that it has free [[stamen]]s and petals, paracytic [[stomata]], and a pollen morphology distinct from the other genera. Because of this and the recent [[Molecular phylogenetics|phylogenetic analysis]] based on ''rbcL'' genes, more recent treatments have segregated ''Donatia'' into its own family, the Donatiaceae. The molecular phylogenetic analysis has placed ''Donatia'' as a sister-group to Stylidiaceae, thus leaving the Stylidiaceae as a [[monophyletic]] family.<ref name="Laurent">Laurent, N., Bremer, B., and Bremer, K. (1999). Phylogeny and generic interrelationships of the Stylidiaceae (Asterales), with a possible extreme case of floral paedomorphosis. ''Systematic Botany'', 23(3): 289-304.</ref><ref name="Lundberg and Bremer 2003">Lundberg, J. and Bremer, K. (2003). A phylogenetic study of the order Asterales using one morphological and three molecular data sets. ''International Journal of Plant Sciences'', 164: 553-578.</ref> |
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[[File:Donatia fascicularis from Endeavour voyage.jpg|thumb|left|Drawing of ''[[Donatia fascicularis]]'' from the Endeavour voyage of [[James Cook]] in 1769.]] |
[[File:Donatia fascicularis from Endeavour voyage.jpg|thumb|left|Drawing of ''[[Donatia fascicularis]]'' from the Endeavour voyage of [[James Cook]] in 1769.]] |
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As early as three years after Mildbraed's publication of the subfamily Donatioideae, other authors began to question the placement and argued for recognition of Donatiaceae. In 1915, [[Carl Skottsberg]] formally published the Donatiaceae.<ref name="Skottsberg 1915">Skottsberg, C. (1915). Notes on the relations between the floras of subantarctic America and New Zealand. ''Plant World'', 18: 129-142.</ref> The [[APG II system]] recommended the inclusion of ''Donatia'' in Stylidiaceae but allowed for the optional recognition of the family Donatiaceae.<ref>{{Cite journal|last=Angiosperm Phylogeny Group II |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 | |
As early as three years after Mildbraed's publication of the subfamily Donatioideae, other authors began to question the placement and argued for recognition of Donatiaceae. In 1915, [[Carl Skottsberg]] formally published the Donatiaceae.<ref name="Skottsberg 1915">Skottsberg, C. (1915). Notes on the relations between the floras of subantarctic America and New Zealand. ''Plant World'', 18: 129-142.</ref> The [[APG II system]] recommended the inclusion of ''Donatia'' in Stylidiaceae but allowed for the optional recognition of the family Donatiaceae.<ref>{{Cite journal|last=Angiosperm Phylogeny Group II |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= }}</ref> The [[APG III system]] merges Donatiaceae into Stylidiaceae. The two species in the genus represent a wide geographic range. ''D. novae-zelandiae'' is found in the [[Alpine climate|alpine]] and [[subalpine]] regions of [[New Zealand]] and [[Tasmania]] while ''D. fascicularis'' is native to similar habitats in southern [[South America]] to [[40th parallel south|latitude 40°S]].<ref name="Wagstaff and Wege" /> |
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In Chile ''[[Donatia fascicularis]]'' is, together with ''[[Astelia pumila]]'', dominant in the [[cushion plant|cushion]] [[bog]]s that exists in areas exposed to the Pacific coast.<ref name=bioclim>{{cite book |last=Luebert |first=Federico |last2=Pliscoff |first2=Patricio |date=2017|orig-year=2006 |title=Sinopsis bioclimática y vegetacional de Chile|edition=2nd |location=[[Santiago|Santiago de Chile]] |publisher=[[Editorial Universitaria]] |page=209 |isbn=978-956-11-2575-9 |language=es }}</ref> As such it is not usually found together with ''[[Sphagnum magellanicum|Sphagnum]]'' which tend to grow slightly more inland.<ref name=bioclim/> |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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{{Taxonbar|from=Q134836}} |
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[[Category:Stylidiaceae]] |
[[Category:Stylidiaceae]] |
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[[Category:Asterales genera]] |
[[Category:Asterales genera]] |
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[{Category:Asterales genera]] |
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{{Stylidiaceae-stub}} |
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Latest revision as of 19:41, 16 August 2023
| Donatia | |
|---|---|
| |
| Donatia novae-zelandiae | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Stylidiaceae |
| Subfamily: | Donatioideae B.Chandler |
| Genus: | Donatia J.R.Forst. & G.Forst. |
| Type species | |
| Donatia fascicularis | |
| Species | |
Donatia is a genus of two cushion plant species in the family Stylidiaceae. The name commemorates Vitaliano Donati, an Italian botanist.
Donatia has been placed in the subfamily Donatioideae, described by Johannes Mildbraed in his 1908 taxonomic monograph of the family Stylidiaceae. The subfamily was created to distinguish the difference between the single genus Donatia from the five typical genera of the Stylidiaceae that Mildbraed placed in the Stylidioideae subfamily.[1] The subfamily taxonomy represented the taxonomic uncertainty of Donatia, which had at one point also been placed in the Saxifragaceae.[2][3] Donatia differs sufficiently from the genera in the Stylidiaceae in that it has free stamens and petals, paracytic stomata, and a pollen morphology distinct from the other genera. Because of this and the recent phylogenetic analysis based on rbcL genes, more recent treatments have segregated Donatia into its own family, the Donatiaceae. The molecular phylogenetic analysis has placed Donatia as a sister-group to Stylidiaceae, thus leaving the Stylidiaceae as a monophyletic family.[4][5]
As early as three years after Mildbraed's publication of the subfamily Donatioideae, other authors began to question the placement and argued for recognition of Donatiaceae. In 1915, Carl Skottsberg formally published the Donatiaceae.[6] The APG II system recommended the inclusion of Donatia in Stylidiaceae but allowed for the optional recognition of the family Donatiaceae.[7] The APG III system merges Donatiaceae into Stylidiaceae. The two species in the genus represent a wide geographic range. D. novae-zelandiae is found in the alpine and subalpine regions of New Zealand and Tasmania while D. fascicularis is native to similar habitats in southern South America to latitude 40°S.[2]
In Chile Donatia fascicularis is, together with Astelia pumila, dominant in the cushion bogs that exists in areas exposed to the Pacific coast.[8] As such it is not usually found together with Sphagnum which tend to grow slightly more inland.[8]
References
[edit]- ^ Mildbraed, J. (1908). Stylidiaceae. In Engler, A. Das Pflanzenreich: Regni vegetabilis conspectus, IV. 278. Leipzig, 1908.
- ^ a b Wagstaff, S.J. and Wege, J. (2002). Patterns of diversification in New Zealand Stylidiaceae Archived 2009-02-18 at the Wayback Machine. American Journal of Botany, 89(5): 865-874.
- ^ Good, R. (1925). On the geographical distribution of the Stylidiaceae. New Phytologist, 24(4): 225-240.
- ^ Laurent, N., Bremer, B., and Bremer, K. (1999). Phylogeny and generic interrelationships of the Stylidiaceae (Asterales), with a possible extreme case of floral paedomorphosis. Systematic Botany, 23(3): 289-304.
- ^ Lundberg, J. and Bremer, K. (2003). A phylogenetic study of the order Asterales using one morphological and three molecular data sets. International Journal of Plant Sciences, 164: 553-578.
- ^ Skottsberg, C. (1915). Notes on the relations between the floras of subantarctic America and New Zealand. Plant World, 18: 129-142.
- ^ Angiosperm Phylogeny Group II (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.
- ^ a b Luebert, Federico; Pliscoff, Patricio (2017) [2006]. Sinopsis bioclimática y vegetacional de Chile (in Spanish) (2nd ed.). Santiago de Chile: Editorial Universitaria. p. 209. ISBN 978-956-11-2575-9.
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