00660nas a2200181 4500008004100000245015100041210006900192300001100261490000700272100001400279700002300293700002300316700002200339700002200361700002100383700002600404856004800430 2017 eng d00aCutting up the climbers: Evidence for extensive polyphyly in Friesodielsia (Annonaceae) necessitates generic realignment across the tribe Uvarieae0 aCutting up the climbers Evidence for extensive polyphyly in Frie a3–190 v661 aGuo, Xing1 aHoekstra, Paul, H.1 aTang, Chin, Cheung1 aThomas, Daniel, C1 aWieringa, Jan, J.1 aChatrou, Lars, W1 aSaunders, Richard, MK uhttps://annonaceae.myspecies.info/node/575702606nas a2200181 4500008004100000245014900041210006900190300001400259490000700273520193400280100001402214700001802228700002202246700002302268700001902291700002702310856008702337 2018 eng d00aA new Annonaceae genus, Wuodendron, provides support for a post-boreotropical origin of the Asian-Neotropical disjunction in the tribe Miliuseae0 anew Annonaceae genus Wuodendron provides support for a postboreo a250–2660 v673 aRecent molecular and morphological studies have clarified generic circumscriptions in Annonaceae tribe Miliuseae and resulted in the segregation of disparate elements from the previously highly polyphyletic genus Polyalthia s.l. Several names in Polyalthia nevertheless remain unresolved, awaiting assignment to specific genera, including Polyalthia litseifolia. Phylogenetic analyses of seven chloroplast regions (atpB-rbcL, matK, ndhF, psbA-trnH, rbcL, trnL-F, ycf1; ca. 8.3 kb, 116 accessions, including representatives of all currently accepted genera in subfamily Malmeoideae) unambiguously placed Polyalthia litseifolia in a clade with three accessions from Thailand, which have previously been shown to represent an undescribed genus sister to the Neotropical clade (Desmopsis, Sapranthus, Stenanona, Tridimeris) in the predominantly Asian tribe Miliuseae. The collective clade is sister to Meiogyne. Polyalthia litseifolia shares several diagnostic characters with most species in the Neotropical genera and Meiogyne, including: petals that are similar in shape and size in both whorls; multiple ovules per ovary in one or two rows; and lamelliform endosperm ruminations. It is distinct in being deciduous, bearing subpetiolar buds and having inflorescences growing from the leaf scar of the dropped leaves. Morphological comparisons and phylogenetic analyses corroborate its recognition as a new genus, which is formally described and illustrated here as Wuodendron. Polyalthia litseifolia is furthermore found to be conspecific with Desmos praecox, and the latter name is used as the basis for the name of the type. Molecular divergence time estimates under an uncorrelated lognormal relaxed clock place the Wuodendron-Neotropical clade split within the Miocene (ca. 14–12 Ma), highlighting the importance of post-boreotropical dispersal and vicariance in shaping intercontinental tropical disjunctions in Annonaceae.1 aXue, Bine1 aTan, Yun-Hong1 aThomas, Daniel, C1 aChaowasku, Tanawat1 aHou, Xue-Liang1 aSaunders, Richard, M K uhttps://www.ingentaconnect.com/contentone/iapt/tax/2018/00000067/00000002/art0000302134nas a2200181 4500008004100000022001400041245012900055210006900184300000900253490000600262520151500268100001401783700002301797700002201820700002801842700002701870856005501897 2017 eng d a2045-232200aA mega-phylogeny of the Annonaceae: taxonomic placement of five enigmatic genera and support for a new tribe, Phoenicantheae0 amegaphylogeny of the Annonaceae taxonomic placement of five enig a73230 v73 aThe Annonaceae, the largest family in the early-divergent order Magnoliales, comprises 107 genera and c. 2,400 species. Previous molecular phylogenetic studies targeting different taxa have generated large quantities of partially overlapping DNA sequence data for many species, although a large-scale phylogeny based on the maximum number of representatives has never been reconstructed. We use a supermatrix of eight chloroplast markers (rbcL, matK, ndhF, psbA-trnH, trnL-F, atpB-rbcL, trnS-G and ycf1) to reconstruct the most comprehensive tree to date, including 705 species (29%) from 105 genera (98%). This provides novel insights into the relationships of five enigmatic genera (Bocagea, Boutiquea, Cardiopetalum, Duckeanthus and Phoenicanthus). Fifteen main clades are retrieved in subfamilies Annonoideae and Malmeoideae collectively, 14 of which correspond with currently recognised tribes. Phoenicanthus cannot be accommodated in any existing tribe, however: it is retrieved as sister to a clade comprising the tribes Dendrokingstonieae, Monocarpieae and Miliuseae, and we therefore validate a new tribe, Phoenicantheae. Our results provide strong support for many previously recognised groups, but also indicate non-monophyly of several genera (Desmopsis, Friesodielsia, Klarobelia, Oxandra, Piptostigma and Stenanona). The relationships of these non-monophyletic genera—and two other genera (Froesiodendron and Melodorum) not yet sampled—are discussed, with recommendations for future research.1 aGuo, Xing1 aTang, Chin, Cheung1 aThomas, Daniel, C1 aCouvreur, Thomas, L. P.1 aSaunders, Richard, M K uhttps://www.nature.com/articles/s41598-017-07252-202361nas a2200265 4500008004100000245009300041210006900134300001400203490000700217520158500224653001501809653001701824653002101841653002801862653001101890653001701901653001501918653001301933653001801946100001401964700002001978700002201998700002702020856004802047 2012 eng d00aPruning the polyphyletic genus Polyalthia (Annonaceae) and resurrecting the genus Monoon0 aPruning the polyphyletic genus Polyalthia Annonaceae and resurre a1021-10390 v613 aThe highly polyphyletic status of the species-rich genus Polyalthia (Annonaceae) remains one of the most significant impediments to revisionary and floristic taxonomic research in the family. Although Polyalthia has recently been reduced in taxonomic scope, the remaining species in the genus still form a phylogenetically disparate and morphologically heterogeneous assemblage. We use maximum parsimony, maximum likelihood and Bayesian phylogenetic reconstructions based on chloroplast DNA sequence data (matK, rbcL, trnL-F) to show that the remaining Polyalthia species segregate into three clades: a clade sister to Miliusa; a clade that also includes all Enicosanthum and Woodiellantha species sampled, sister to Neo-uvaria; and a clade that also includes all Haplostichanthus species sampled, inferred (based on previous research) to be sister to Popowia. Diagnostic morphological and anatomical characters are evaluated for the latter two clades, and diagnostic leaf and seed characters identified. Based on these results, the generic name Monoon is resurrected for the clade that includes Enicosanthum and Woodiellantha, following the transfer of 37 species from Polyalthia s.l., 18 species from Enicosanthum and the single Woodiellantha species. The generic name Haplostichanthus is furthermore synonymised with Polyalthia s.str., necessitating nine nomenclatural changes, including six new combinations and three replacement names.10aAnnonaceae10aENICOSANTHUM10aHAPLOSTICHANTHUS10aMOLECULAR PHYLOGENETICS10aMONOON10anomenclature10aPOLYALTHIA10ataxonomy10aWOODIELLANTHA1 aXue, Bine1 aSu, Yvonne, C F1 aThomas, Daniel, C1 aSaunders, Richard, M K uhttps://annonaceae.myspecies.info/node/568802387nas a2200253 4500008004100000020001400041245017000055210006900225300001200294520156400306653001801870653002401888653001501912653001501927653001301942100001401955700001501969700001401984700002201998700002002020700001802040700002702058856004802085 2013 eng d a1759-683100aReassessing the taxonomic status of two enigmatic Desmos species (Annonaceae): Morphological and molecular phylogenetic support for a new genus, Wangia0 aReassessing the taxonomic status of two enigmatic iDesmos ispeci an/a-n/a3 aThe systematic position of two enigmatic Annonaceae species from China, Desmos saccopetaloides and Desmos yunnanensis, has been controversial, with both species having been transferred between several different genera within subfamilies Annonoideae and Malmeoideae. Phylogenetic analyses of eight chloroplast regions (matK, ndhF, ndhF-rpl32, psbA-trnH, rbcL, rpl32-trnL, trnL-F, and ycf1; ca. 9.2 kb, 66 taxa) unambiguously placed D. saccopetaloides in a subclade of tribe Miliuseae, nested among the genera Monoon, Neo-uvaria, Phaeanthus, Sageraea, and Stelechocarpus. This relationship was also supported by endosperm rumination patterns in the seed; other morphological characters furthermore indicated that D. saccopetaloides has closer affinities with Monoon, Neo-uvaria, and Phaeanthus rather than either Sageraea or Stelechocarpus. Desmos saccopetaloides is distinguished from these genera by its leaf-opposed inflorescences, sepaloid outer petals, saccate inner petals with basal glandular tissue, moniliform monocarps with uniseriate seeds, and rectangular disulculate pollen with two “cryptoapertures”. On the basis of the combined molecular phylogenetic and morphological data, we propose a new genus, Wangia, to accommodate D. saccopetaloides. The molecular phylogenetic analyses furthermore indicated that Desmos yunnanensis belongs to the genus Dasymaschalon: examination of the type collections revealed that it is conspecific with Dasymaschalon obtusipetalum, although the combination Dasymaschalon yunnanense has nomenclatural priority.10aDasymaschalon10amolecular phylogeny10amorphology10aPhaeanthus10ataxonomy1 aGuo, Xing1 aWang, Jing1 aXue, Bine1 aThomas, Daniel, C1 aSu, Yvonne, C F1 aTan, Yun-Hong1 aSaunders, Richard, M K uhttps://annonaceae.myspecies.info/node/514700510nas a2200133 4500008004100000245009300041210006900134490000700203100001400210700002000224700002200244700002700266856008300293 2012 eng d00aPruning the polyphyletic genus Polyalthia (Annonaceae) and resurrecting the genus Monoon0 aPruning the polyphyletic genus Polyalthia Annonaceae and resurre0 v651 aXue, Bine1 aSu, Yvonne, C F1 aThomas, Daniel, C1 aSaunders, Richard, M K uhttp://www.ingentaconnect.com/content/iapt/tax/2012/00000061/00000005/art00009