https://gardenology.mywikis.net/w/index.php?action=history&feed=atom&title=Apostasioideae 2026-04-11T14:12:30Z Revision history for this page on the wiki MediaWiki 1.35.3 https://gardenology.mywikis.net/w/index.php?title=Apostasioideae&diff=5181&oldid=prev 2007-06-23T12:51:03Z

<p></p> <p><b>New page</b></p><div>{{Taxobox<br /> | color = lightgreen<br /> | name = Apostasioid orchids<br /> | regnum = [[Plant]]ae<br /> | divisio = [[Flowering plant|Magnoliophyta]]<br /> | classis = [[Monocotyledon|Liliopsida]]<br /> | ordo = [[Asparagales]]<br /> | familia = [[Orchidaceae]]<br /> | subfamilia = '''Apostasioideae'''<br /> | subdivision_ranks = Genera<br /> | subdivision = <br /> ''[[Apostasia orchid|Apostasia]]'' &lt;br /&gt;<br /> ''[[Neuwiedia]]''<br /> }}<br /> <br /> The subfamily '''Apostasioideae''' belongs to the orchid family ([[Orchidaceae]]). <br /> <br /> It is a [[cladistics|clade]], but there is bootstrap support that it is a sister to the other orchid subfamilies. A bootstrap is a method for evaluating the statistical importance of positions of different branches in a phylogenetic tree (= a treelike structure giving the evolutionary development of organisms).<br /> <br /> The apostasioid orchids are the most primitive orchids, with only two genera. ''[[Neuwiedia]]'' has 3 fertile, abaxial (= facing away from the stem) [[anther]]s, while ''[[Apostasia]]'' has two fertile abaxial anthers and a filamentous [[staminode]] (= a sterile [[stamen]]). <br /> <br /> These primitive features make them, according to some authorities, not true orchids but rather ancestors of modern orchids. However, modern studies (Stern, Cheadle and Thorsch, 1993) point out that the apostasioid orchids are uniquely defined ( = autapomorphous). This makes them unsuitable as models to be the ancestors of the orchids.<br /> <br /> == References==<br /> * {{cite journal | quotes=no|author = Stern, W. L., V. Cheadle, and J. Thorsch|year = 1993| titlz = Apostasiads, systematic anatomy, and the origins of Orchidaceae| journal = Botanical Journal of the Linnean Society|volume = 111|pages = 411–445}}<br /> * {{cite journal | quotes=no|author = A. Kocyan, Y.-L. Qiu, P. K. Endress, and E. Conti|year = 2004|month = August| title = A phylogenetic analysis of Apostasioideae (Orchidaceae) based on ITS, trnL-F and matK sequences | journal = Plant Syst. Evol.|volume = 247|issue = 3/4|pages = 203-213}} [http://www.springerlink.com/content/r793mt806cv17xn2/fulltext.pdf online pdf.format]<br /> <br /> [[Category:Orchids]]</div>

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