@article {204,
	title = {Biogeography of discontinuously distributed hydrophytes: a molecular appraisal of intercontinental disjunctions},
	journal = {International Journal of Plant Sciences},
	volume = {164},
	number = {6},
	year = {2003},
	pages = {917-932},
	abstract = {<p>The extraordinarily wide distributional ranges of aquatic flowering plants have long stimulated phytogeographical discussion. Although aquatic plants occur rarely among the angiosperms, they represent a disproportionately large number of taxa with broad distributions including various intercontinental disjunctions that are manifest even at the species level. Throughout the nineteenth and early twentieth centuries, long-range dispersal by waterfowl was the prevailing explanation for widespread aquatic plant distributions. This explanation gradually fell into disfavor as biologists raised doubts as to the ability of waterfowl to transport propagules across the extensive transoceanic distances between the continents on which an assortment of aquatic taxa now reside. During the twentieth century, the development of biogeographical displacement theory, i.e., \&ldquo;continental drift,\&rdquo; steadily began to supplant dispersal as the preferred explanation for discontinuous angiosperm distributions. Our study assesses the dispersal/displacement hypotheses from a temporal standpoint using molecular estimates of divergence time for a diverse sample of phylogenetically related aquatic taxa that exhibit discontinuous intercontinental distributions. With few exceptions, we found divergence times that are far too recent to implicate continental drift as a major determinant of discontinuous distributions in aquatic plants. We suggest that long-distance dispersal by birds should continue to be regarded as a viable explanation for widely disjunct aquatic plant distributions, although such dispersal is likely to have involved a combination of overland as well as transoceanic migratory routes.</p>
},
	keywords = {biogeography, hydrophyte, aquatic plant, intercontinental disjunction, dispersal},
	doi = {http://dx.doi.org/10.1086/378650},
	url = {http://www.jstor.org/stable/10.1086/378650},
	author = {Les, Donald H. and Crawford, Daniel J. and Kimball, Rebecca T. and Moody, Michael L. and Landolt, Elias}
}
@article {207,
	title = {Phylogeny and Systematics of Aponogeton (Aponogetonaceae): The Australian Species},
	journal = {Systematic BotanySystematic Botany},
	volume = {30},
	number = {3},
	year = {2005},
	pages = {503-519},
	abstract = {Aponogeton is an important genus whose species are cultivated as ornamental aquatic plants. Although a fairly recent monograph has been published, the genus remains poorly studied systematically. We conducted a phylogenetic survey of Aponogeton that focuses on relationships among the nine native Australian species as well as their relationship to other members of the genus. Our analyses included a phylogenetic assessment of morphological characters and molecular data obtained both from chloroplast (trnK 5{\textquoteright} intron, matK) and nuclear DNA (nrITS) loci. Molecular data provided evidence of hybridization and polyploidy as well as an informative overview of interspecific relationships in the genus. Two potentially new Australian species alwo were identified by the molecular data. Combined molecular data produced a well-resolved cladogram that enabled us to evaluate previous phylogenetic hypotheses based on non-explicit methods as well as teh soundness of the existing classification of the genus. We conclude that Aponogetonaceae originated in Australia and subsequently radiated into Africa, Madagascar, and Asia, from which a secondary Australian diversification occurred resulting in a biphyletic origin of the native Australian species. A pattern of morphological distinctiveness coupled with low molecular divergence indicates relatively recent and rapid speciation of Aponogeton in Australia. Our results also demonstrate that in this group, morphological data are extremely unreliable taxonomically due to their extensive homoplasy. The phylogenetic relationships elucidated by this study provide evidence to support the establishment of two additional sections, Flavida and Viridis, which are described.},
	author = {Les, Donald H. and Moody, Michael L. and Jacobs, Surrey W.L.}
}
@article {208,
	title = {Systematics of Seagrasses (Zosteraceae) in Australia and New Zealand},
	journal = {Systematic BotanySystematic Botany},
	volume = {27},
	number = {3},
	year = {2002},
	note = {evtl. interessantes paper zitiert (Bayer 1999) zur Evolution polyploider KomplexeCTAB-Methode (Rogstad 1992)},
	pages = {468-484},
	keywords = {systematics, taxonomy, ITS, trnK intron, rbcL, Zosteraceae, seagrasses, Australia, New Zealand},
	author = {Les, Donald H. and Moody, Michael L. and Jacobs, Surrey W.L. and Bayer, Randall J.}
}
