@article {5688, title = {Pruning the polyphyletic genus Polyalthia (Annonaceae) and resurrecting the genus Monoon}, journal = {TaxonTaxon}, volume = {61}, number = {5}, year = {2012}, pages = {1021-1039}, abstract = {The 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.}, keywords = {Annonaceae, ENICOSANTHUM, HAPLOSTICHANTHUS, MOLECULAR PHYLOGENETICS, MONOON, nomenclature, POLYALTHIA, taxonomy, WOODIELLANTHA}, author = {Xue, Bine and Su, Yvonne C. F. and Thomas, Daniel C. and Saunders, Richard M. K.} } @article {5147, title = {Reassessing the taxonomic status of two enigmatic Desmos species (Annonaceae): Morphological and molecular phylogenetic support for a new genus, Wangia}, journal = {Journal of Systematics and EvolutionJournal of Systematics and Evolution}, year = {2013}, pages = {n/a-n/a}, abstract = {The 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 {\textquotedblleft}cryptoapertures{\textquotedblright}. 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.}, keywords = {Dasymaschalon, molecular phylogeny, morphology, Phaeanthus, taxonomy}, isbn = {1759-6831}, author = {Guo, Xing and Wang, Jing and Xue, Bine and Thomas, Daniel C. and Su, Yvonne C. F. and Tan, Yun-Hong and Saunders, Richard M. K.} } @article {4940, title = {Miliusa codonantha (Annonaceae), a new species from the Indian eastern Himalaya, with a new combination, M. dioeca}, journal = {Willdenowia - Annals of the Botanic Garden and Botanical Museum Berlin-DahlemWilldenowia - Annals of the Botanic Garden and Botanical Museum Berlin-Dahlem}, volume = {43}, number = {1}, year = {2013}, pages = {101-105}, abstract = {A new species from the Indian eastern Himalaya, Miliusa codonantha, is described and illustrated. It chiefly differs from M. macrocarpa, its most morphologically similar species, in having smaller flowers and considerably fewer stamens and carpels per flower. In addition, a new combination is made for another species of Miliusa also occurring on the Indian subcontinent: M. dioeca (basionym: Uvaria dioeca). The two species as well as M. macrocarpa are placed in the previously recognized M. campanulata group. The names U. dioeca and its heterotypic synonym M. wallichiana are lectotypified.}, keywords = {INDIA, Malmeoideae, MILIUSEAE, nomenclature, SYSTEMATICS, taxonomy}, author = {Chaowasku, Tanawat} }