02207nas a2200133 4500008004100000245017600041210006900217300001400286490000700300520167100307100001901978700002601997856005002023 2015 eng d00aPhylogeny, biogeography and evolution of Triglochin L. (Juncaginaceae) – Morphological diversification is linked to habitat shifts rather than to genetic diversification0 aPhylogeny biogeography and evolution of Triglochin L Juncaginace a200–2120 v833 a

A species-level phylogeny is presented for Triglochin, the largest genus of Juncaginaceae (Alismatales) comprising about 30 species of annual and perennial herbs. Triglochin has an almost cosmopolitan distribution with Australia as centre of species diversity. Trans-Atlantic and trans-African disjunctions exist in the genus. Phylogenetic analyses were conducted based on molecular data obtained from nuclear (ITS, internal transcribed spacer) and chloroplast sequence data (psbA-trnH spacer, matK gene). Based on the phylogeny of the group divergence times were estimated and ancestral distribution areas reconstructed. Our data confirm the monophyly of Triglochin and resolve relationships between the major lineages of the genus. The sister group relationship between the Mediterranean/African T. bulbosa complex and the American T. scilloides (formerly Lilaea s.) is strongly supported. This clade is sister to the rest of the genus which contains two main clades. In the first, the widespread T. striata is sister to a clade comprising annual Triglochin species from Australia. The second clade comprises T. palustris as sister to the T. maritima complex, of which the latter is further divided into a Eurasian and an American subclade. Taxonomic diversity in some clades appears to be linked to habitat shifts and is not present in old but ecologically invariable lineages such as the non-monophyletic T. maritima. Diversification in Triglochin began in the Miocene or Oligocene, and most disjunctions in Triglochin were dated to the Miocene.

1 aMering, Sabine1 aKadereit, Joachim, W. uhttps://juncaginaceae.myspecies.info/node/59802367nas a2200301 4500008004100000245011900041210006900160300001200229490000800241520150700249653001201756653002001768653001001788653001101798653001001809653001801819653001601837653001301853653001001866653002101876653001001897653001601907100002501923700001901948700002401967700002401991856005002015 2013 eng d00aMorphology of Maundia supports its isolated phylogenetic position in the early-divergent monocot order Alismatales0 aMorphology of Maundia supports its isolated phylogenetic positio a12–450 v1733 a

According to recent molecular phylogenetic data, the rare Australian endemic Maundia triglochinoides does not form a clade with taxa traditionally classified as members of Juncaginaceae. Therefore, views on the morphological evolution and taxonomy of Alismatales require re-assessment. As the morphology of Maundia is poorly known and some key features have been controversially described in the literature, the flowers, fruits, inflorescence axes and peduncles were studied using light and scanning electron microscopy. Inflorescences are bractless spikes with flowers arranged in trimerous whorls. Except in the inflorescence tip (where the flower groundplan is variable), flowers possess two tepals in transversal-abaxial positions, six stamens in two trimerous whorls and four carpels in median and transversal positions. Fruits are indehiscent. The shared possession of orthotropous ovules supports the molecular phylogenetic placement of Maundia as sister to a large clade including Potamogetonaceae and related families. Maundia and Aponogeton spp. share the same highly unusual floral groundplan, a homoplastic similarity that can be explained by spatial constraints in developing inflorescences. The nucellar coenocyte of Maundia appears to be unique among monocots. As Maundia exhibits a mosaic of features characteristic of other families of tepaloid core Alismatales, its segregation as a separate family is plausible.

10aanatomy10aAponogetonaceae10abract10aflower10afruit10aJuncaginaceae10aMaundiaceae10anucellus10aovule10aPotamogetonaceae10atepal10avasculature1 aSokoloff, Dmitry, D.1 aMering, Sabine1 aJacobs, Surrey, W L1 aRemizowa, Margarita uhttps://juncaginaceae.myspecies.info/node/58801157nas a2200193 4500008004100000245011400041210006900155300001000224490000700234520050600241653001700747653002400764653001400788653001400802653002700816653001700843100001900860856008400879 2013 eng d00aTetroncium and its only species, T. magellanicum (Juncaginaceae): distribution, ecology and lectotypification0 aTetroncium and its only species T magellanicum Juncaginaceae dis a13-240 v433 a

Tetroncium magellanicum (Juncaginaceae) was described by Willdenow in 1808, based on material collected by Commerson at the Strait of Magellan during Bougainville's voyage around the world. Type material of this species was traced and a lectotype for the name is designated. A description of the species and notes on its ecology and conservation status are provided. For the first time, a detailed map showing the known distribution area of T. magellanicum is presented.

10aGough Island10aHerbarium Willdenow10alectotype10apeatlands10asouthern South America10atypification1 aMering, Sabine uhttp://www.ingentaconnect.com/content/bgbm/will/2013/00000043/00000001/art0000202259nas a2200205 4500008004100000245009900041210006900140260003600209300001000245520162200255653001601877653001501893653001101908653001201919653001501931653001501946100001901961700002501980856004802005 2010 eng d00aPhylogeny, systematics, and recircumscription of Juncaginaceae - a cosmopolitan wetland family0 aPhylogeny systematics and recircumscription of Juncaginaceae a c aAarhusbAarhus University Press a55-793 a

Juncaginaceae are a small monocot family of mostly coastal and wetland herbs of almost cosmopolitan distribution. A phylogenetic analysis of the family and members of Alismatales was conducted to clarify the circumscription of Juncaginaceae and to understand intrafamilial relationships. For the first time, all genera associated with the family in the past were analysed together. Two plastid (rbcL and matK) and one mitochondrial gene (atpA) were sequenced. The separate and combined analysis of the three markers showed that Juncaginaceae are not monophyletic in their current circumscription. The family is re-circumscribed to exclude Maundia which is proposed to belong to a separate family Maundiaceae. In the new classification Juncaginaceae comprise three genera: Tetroncium, Cycnogeton, and Triglochin. Tetroncium is weakly supported as sister to the rest of the family. The reinstated Cycnogeton (formerly included in Triglochin) is highly supported as sister to Triglochin s.s. The enigmatic Lilaea is nested within Triglochin s.s. and highly supported as sister to the T. bulbosa complex. The results of the molecular analysis are discussed in combination with morphological characters. A key to the genera of the family is presented, and six new combinations are proposed: Cycnogeton alcockiae, Cycnogeton dubium, Cycnogeton microtuberosum, Cycnogeton multifructum, Cycnogeton rheophilum, and Triglochin scilloides.

10aAlismatales10aCycnogeton10aLilaea10aMaundia10aTetroncium10aTriglochin1 aMering, Sabine1 aKadereit, Joachim, W uhttps://juncaginaceae.myspecies.info/node/302053nas a2200301 4500008004100000245009800041210006900139300001200208490000700220520114200227653002601369653001901395653001201414653003301426653001801459653003501477653001501512653001301527653001701540653001301557653001501570653001701585100002301602700001901625700002101644700002501665856006101690 2010 eng d00aRevision of the Mediterranean and Southern African Triglochin bulbosa complex (Juncaginaceae)0 aRevision of the Mediterranean and Southern African Triglochin bu a353-3980 v673 a

The Triglochin bulbosa complex (Juncaginaceae) from the Mediterranean region and Africa is revised. One new species, Triglochin buchenaui Köcke, Mering & Kadereit, and two new subspecies, Triglochin bulbosa subsp. calcicola Mering, Köcke & Kadereit and Triglochin bulbosa subsp. quarcicola Mering, Köcke & Kadereit, are described from South Africa. The only two Mediterranean taxa in the complex (Triglochin barrelieri, T. laxiflora) are elevated to species rank. Altogether seven species and four subspecies are recognised: Triglochin barrelieri, T. buchenaui, T. bulbosa subsp. bulbosa, T. bulbosa subsp. calcicola, T. bulbosa subsp. quarcicola, T. bulbosa subsp. tenuifolia, T. compacta, T. elongata, T. laxiflora and T. milnei. An identification key, detailed descriptions and accounts of the ecology and distribution of the taxa are provided. An IUCN conservation status is proposed for each taxon.

10aCape Floristic Region10aCape Peninsula10aecology10aIUCN conservation assessment10aJuncaginaceae10aMediterranean Floristic Region10amorphology10arevision10aSouth Africa10ataxonomy10aTriglochin10atypification1 aKöcke, Valerie, A1 aMering, Sabine1 aMucina, Ladislav1 aKadereit, Joachim, W uhttp://journals.cambridge.org/abstract_S0960428610000041