02324nas a2200157 4500008004100000245009600041210006900137300001200206490000700218520176400225653006901989100002002058700001902078700001902097856005002116 2005 eng d00aPlant colonization after managed realignment: the relative importance of diaspore dispersal0 aPlant colonization after managed realignment the relative import a770-7770 v423 a1. Deliberate breaching of sea defences is frequently practised with the aim of restoring salt-marsh vegetation on previously embanked land. However, experience so far has shown that it may take several years before salt-marsh vegetation is fully established, and it is possible that limited diaspore dispersal plays a role in this. In order to ascertain whether salt-marsh development may be constrained by limited diaspore dispersal, we studied the dispersal of salt-marsh species by tidal water.2. From October 2001 to the end of March 2002 a total of 38 species, of which 18 were salt-marsh species, was trapped in a restoration site and adjacent marsh. Aster tripolium, Limonium vulgare, Puccinellia maritima, Salicornia spp., Spergularia media and Suaeda maritima were the most abundant salt-marsh species, with more than 3 diaspores m2 trapped during the study period.3. For most species, the number of diaspores trapped was representative of their abundance in nearby vegetation. Hence, despite the potential for long-distance transport by tidal water, our results indicate a predominantly local dispersal of salt-marsh species.4. Synthesis and applications. For the restoration of salt-marsh vegetation after de-embankment, relatively rapid colonization may be expected from pioneer and low-marsh species, provided they are present in a nearby source area and the restoration site is at the appropriate altitude. The establishment of species absent from the adjacent marsh may be dependent on the presence of birds or humans as the main dispersal agents. Breaching of sea defences should preferably take place before or during September, in order to take advantage of the peak in dispersal of salt-marsh species in the first year after breaching.10ade-embankment, hydrochory, salt-marsh restoration, seed trapping1 aWolters, Mineke1 aGarbutt, Angus1 aBakker, Jan, P uhttps://juncaginaceae.myspecies.info/node/36102733nas a2200157 4500008004100000245017900041210006900220300001200289490000800301520204500309653010502354100002402459700002102483700002102504856005002525 2005 eng d00aEvolutionary transitions among flowers of perianthless Piperales: inferences from inflorescence and flower development in the anomalous species Peperomia fraseri (Piperaceae)0 aEvolutionary transitions among flowers of perianthless Piperales a925-9430 v1663 aFloral and inflorescence structure and ontogeny are described in detail in Peperomia fraseri, an anomalous species of Piperaceae that differs in several respects from other species of Peperomia and other perianthless Piperales (Piperaceae and Saururaceae). Inflorescence structure is atypical in this species, with numerous spikes arranged spirally on a long raceme. There is a gender distribution of flowers along each spike, with the proximal (lower) part bearing bisexual flowers and the distal (upper) region bearing female flowers. Furthermore, there is a high degree of polymorphism in the structure (including presence or absence) of flower-subtending bracts in the same inflorescence. Bract suppression at the basalmost abaxial position in P. fraseri could be explained by a strong inhibitory activity of the spike-subtending bract or its primordium. Bract suppression among scattered flowers in the lower (bisexual) region is interpreted as an example of somatic instability. By contrast, more distal bract and stamen suppression seems to be part of a general tendency to flower reduction toward the spike apex in P. fraseri, where spatial constraints in the inflorescence control the size and shape of the bract and floral primordia, resulting in stamen suppression in smaller primordia. However, it is difficult to understand why an abracteate flower is formed in P. fraseri rather than a sterile bract, as in Peperomia hispidula. Furthermore, in contrast with most other Piperaceae, P. fraseri has no apical residuum on mature spikes; at least some partial inflorescences bear a terminal flowerlike structure, although this more closely resembles those of some Saururaceae than the "true" terminal flower of perianth-bearing Piperales, such as Aristolochiaceae. Peperomia fraseri and other atypical members of Piperaceae represent potentially useful models for examination of patterns of bract and stamen loss in perianthless Piperales, in which spatial constraints in the developing spike are important for floral construction.10abasal angiosperms, bract, floral evolution, ontogeny, Piperales, stamen suppression, terminal flower1 aRemizowa, Margarita1 aRudall, Paula, J1 aSokoloff, Dmitry uhttps://juncaginaceae.myspecies.info/node/30000537nas a2200145 4500008004100000245009900041210006900140300001000209490000700219653004500226100001800271700002600289700002600315856005000341 2005 eng d00aContribution to the knowledge of the wetland flora and vegetation of Amvrakikos Gulf, W Greece0 aContribution to the knowledge of the wetland flora and vegetatio a69-850 v3510aGreece, Ambrakischer Golf, wetland flora1 aSarika, Maria1 aDimopoulos, Panayotis1 aYannitsaros, Artemios uhttps://juncaginaceae.myspecies.info/node/31100366nas a2200109 4500008004100000245006700041210006300108300001000171490000700181100001800188856005000206 2005 eng d00aThe resurrection of oceanic dispersal in historic biogeography0 aresurrection of oceanic dispersal in historic biogeography a68-730 v201 aQueiroz, Alan uhttps://juncaginaceae.myspecies.info/node/29200606nas a2200133 4500008004100000245012200041210006900163300001000232490000700242653014300249100001200392700001800404856005000422 2005 eng d00aEvolutionary divergence and possible incipient speciation in post-glacial populations of a cosmopolitan aquatic plant0 aEvolutionary divergence and possible incipient speciation in pos a19-260 v1810adispersal, gene flow, genetic markers, incipient speciation, isolation-by-distance, pondweed, population structure, Potamogeton pectinatus1 aNies, G1 aReusch, T B H uhttps://juncaginaceae.myspecies.info/node/25902564nas a2200145 4500008004100000245005400041210005400095300001200149490000700161520205600168653010302224100002002327700002102347856005002368 2005 eng d00aEphemeral wetland vegetation of Western Australia0 aEphemeral wetland vegetation of Western Australia a201-2180 v353 a

Vegetation with small short-lived species was first described from the SW corner of Western Australia (WA). This vegetation occurs on inselberg and temporarily flooded areas in spring, after the rainy season. Several vegetation units have been described and on this basis in 1994 the Centrolepidi-Hydrocotyletea alatae vegetation class was proposed. Botanical investigation in desert areas of WA have been carried out during winter 2001 and 2002 in several localities of the Great Victoria, Gibson, Little and Great Sandy Desert. In all of them the presence of similar ephemeral vegetation in wet habitats has been observed. These communities also consist of short-lived species: germination occurs only after rarae events of abundant, mostly erratic, rain and is followed in rapid life-cycles by flowering and dissemination; apparently the development of this vegetation is not concentrated in a particular season, because rainfall is unreliable and mostly linked to unpredictable La Niña events. Several communities can be recognized. They are rare and may occur around claypans, ephemeral ponds, natural and artificial pools. All of them are characterized by species of Centrolepidaceae, together with Cyperus, Marsilea, Triglochin, Stylidium, Scrophulariaceae tribus Gratioleae and insectivorous plants. A synoptic table gives the floristic composition of all the communities of the class Centrolepidi-Hydrocotyletea alatae, which is compared with ephemeral wetland associations of Italy as to vegetative adaptations and phytogeographical components. Data of intensity of PAR radiation, air and soil humidity and leaf temperature show that these vegetation types are adapted to very extreme microclimatic conditions, having the roots in the humid and relatively cool substrate, whereas leaves and flowers develop under dry atmospheric conditions, with elevated temperatures (over 30°C in winter) at noon and frost during night. Most of the species occurring in these communities are endemic.

10adesert vegetation, Western Australia, Centrolepidaceae, ephemeral plants, temporarily wet habitats1 aPignatti, Erika1 aPignatti, Sandro uhttps://juncaginaceae.myspecies.info/node/27702199nas a2200145 4500008004100000245008600041210006900127300001200196490000700208520172300215100001901938700002201957700002401979856005002003 2005 eng d00aPhylogeny and Systematics of Aponogeton (Aponogetonaceae): The Australian Species0 aPhylogeny and Systematics of Aponogeton Aponogetonaceae The Aust a503-5190 v303 aAponogeton 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' 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.1 aLes, Donald, H1 aMoody, Michael, L1 aJacobs, Surrey, W L uhttps://juncaginaceae.myspecies.info/node/20701046nas a2200157 4500008004100000245003000041210002800071260001600099300001000115490000700125520063000132653004100762100002100803700001400824856005000838 2005 eng d00aMed-Checklist Notulae, 230 aMedChecklist Notulae 23 aWilldenowia a55-640 v353 aContinuing a series of miscellaneous contributions, by various authors, where hitherto unpublished data relevant to the Med-Checklist project are presented, this instalment deals with the families Boraginaceae, Caryophyllaceae, Compositae, Dipsacaceae, Euphorbiaceae, Leguminosae, Ranunculaceae, Rhamnaceae, Solanaceae, Violaceae; Gramineae and Juncaginaceae. It includes new country and area records, taxonomic and distributional considerations. New names and combinations are validated in Anthemis, Anthyllis, Centaurea, Cephalaria, Cirsium, Eragrostis, Galatella, Megathyrsus, Psephellus, Rhaponticum, Tripolium and Viola.10aMed-Checklist, Mediterranean region,1 aGreuther, Werner1 aRaus, Th. uhttps://juncaginaceae.myspecies.info/node/12602090nas a2200169 4500008004100000245012300041210006900164300001000233490000700243520143500250653009601685100002101781700002601802700002101828700002101849856005001870 2005 eng d00aPatterns of functional clonal traits and clonal growth modes in contrasting grasslands in the central Apennines, Italy0 aPatterns of functional clonal traits and clonal growth modes in  a29-360 v163 aAim: Patterns of plant functional traits related to clonality (clonal growth modes; CGM) in plant communities were studied and hypotheses on the importance of the selected traits in plant communities supported by soils differing in moisture and nutrient status were tested.Material and Methods: Selected plant functional traits, such as the position of the mother-daughter plants connections, length of spacers, frequency of multiplication, persistency of ramets connections, presence of storage organs and bud protection were studied in two contrasting plant communities (xeric and mesic abandoned pastures) typical of central Apennines, Italy.Results and Discussion: Clonality was shown to be of great importance in both mesic and xeric grasslands. The major differences between the two communities were due to the dominant CGMs: turf graminoids (having effective protection of growth meristems in dense tussocks) dominated xeric grasslands, while rhizomatous graminoids (typical of competitive resource-rich environments) dominated mesic grasslands. Below-ground CGOs (clonal growth organs), shorter spacers, higher multiplication potential, permanent ramet connection, large bud bank and increased importance of bud protection were found to be of importance in water stressed xeric grassland. Contrary to our expectations, the mesic (less stressed) grasslands have the higher number of clonal plants possessing storage organs.10aAdaptation, clonality, ecological stress, plant functional trait, Torricchio Nature Reserve1 aHalassy, Melinda1 aCampetella, Giandiego1 aCanullo, Roberto1 aMucina, Ladislav uhttps://juncaginaceae.myspecies.info/node/13101689nas a2200145 4500008004100000245016600041210006900207300001200276490000800288520105300296653010001349100002401449700002101473856004901494 2005 eng d00aA checklist of the native vascular flora of the Falkland Islands (Islas Malvinas): New information on the species present, their ecology, status and distribution0 achecklist of the native vascular flora of the Falkland Islands I a115-1480 v1323 a

This paper provides the first comprehensive, updated account of the Falkland Islands native flora for nearly forty years. 171 species are recognised, thirteen of which are endemic. Seven native species are included in the checklist for the first time: Arachnitis quetrihuensis Dimitri, Carex banksii Boott, Carex barrosii Nelmes, Elatine sp., Plantago moorei Rahn, Ruppia filifolia (Phil.) Skottsb. and Viola magellanica Forst. f. The presence of Rumex magellanicus Campd., a record previously considered doubtful, is also confirmed. Three previously reported native species are believed to have been recorded in error for the Falkland Islands, and are removed. These are, Eleocharis albibracteata Nees & Meyen ex Kunth, Plantago maritima L. and Schizaea fistulosa Labill. The checklist provides the first detailed account of the ecology, phenology, distribution and status of the vascular plant flora, and as such is a unique record of the Falkland Islands flora at the beginning of a period of unprecedented economic and social change.

10aFalkland Island, vascular flora, endemic flora, threatened flora, ecology, status, distribution1 aBroughton, David, A1 aMcAdam, James, H uhttps://juncaginaceae.myspecies.info/node/35