02387nas a2200253   4500008004100000020001400041245017000055210006900225300001200294520156400306653001801870653002401888653001501912653001501927653001301942100001401955700001501969700001401984700002201998700002002020700001802040700002702058856004802085       2013                        eng d  a1759-683100aReassessing the taxonomic status of two enigmatic <i>Desmos </i>species (Annonaceae): Morphological and molecular phylogenetic support for a new genus, <i>Wangia</i>0 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/514701361nas a2200205   4500008004100000020002200041245012600063210006900189300000900258490000700267520068600274653001500960653001700975653002300992653002401015653002101039100002301060700002401083856004801107       2013                        eng d  a2118-9773|escape}00aPhylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia0 aPhylogeny of Miliusa Magnoliales Annonaceae Malmeoideae Miliusea  a1-210 v543 aThe molecular phylogeny of Miliusa (Annonaceae) is reconstructed, with 27 (of ca. 50) species included, using a combination of seven plastid markers ( rbcL exon, trnL intron, trnL-F spacer, matK exon, ndhF exon, psbA-trnH spacer, and ycf1 exon) constituting ca. 7 kb. In addition, two new species of Miliusa are described from the Malesian area: M. butonensis sp. nov. from Buton Island, Indonesia and M. viridiflora sp. nov. from Papua New Guinea. The former is included in the molecular phylogenetic analysis. The reconstructed phylogeny corresponds well to the informal morphological grouping proposed earlier. A revised key to 13 Austro-Malesian species of Miliusa is provided.10aAnnonaceae10aButon Island10aidentification key10amolecular phylogeny10aPapua New Guinea1 aChaowasku, Tanawat1 aKeßler, Paul, J.A.  uhttps://annonaceae.myspecies.info/node/4941