@article {johnson_revision_2019, title = {A revision of Meiogyne (Annonaceae) in Thailand, with descriptions of four new species}, journal = {Thai Forest Bulletin (Botany)}, volume = {47}, number = {1}, year = {2019}, month = {jun}, pages = {91{\textendash}107}, abstract = {We review the species diversity of the Asian genus Meiogyne (Annonaceae) in Thailand. Four new species, M. anomalocarpa, M. chiangraiensis, M. gardneri, and M. maxiflora, are described. Meiogyne anomalocarpa has the widest distribution of any Meiogyne species in Thailand, but the other three species are narrowly distributed. Meiogyne anomalocarpa and M. maxiflora have the axillary inflorescences typical of the genus, but in M. chiangraiensis and M. gardneri the inflorescences are flagelliform and arise from the lower trunk, a morphology previously unreported from members of this genus. The presence of M. chiangraiensis in northern Thailand extends the range of the genus significantly northward. Meiogyne caudata is reported as new to the flora of Thailand. Several Meiogyne specimens from southernmost Thailand previously identified as M. virgata in the past by various workers were found to be more similar to M. kanthanensis, recently described from Perak, Peninsular Malaysia. A key is provided for the eight species currently recognized as occurring in the country.}, keywords = {Annonaceae, Southeast Asia, taxonomy, tree diversity}, issn = {2465-423X}, doi = {10.20531/tfb.2019.47.1.13}, url = {https://www.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/165919}, author = {Johnson, David M. and Liu, Ming-Fai and Saunders, Richard M. K. and Chalermglin, Piya and Chaowasku, Tanawat} } @article {xue_new_2018, title = {A new Annonaceae genus, Wuodendron, provides support for a post-boreotropical origin of the Asian-Neotropical disjunction in the tribe Miliuseae}, journal = {Taxon}, volume = {67}, number = {2}, year = {2018}, pages = {250{\textendash}266}, abstract = {Recent 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{\textendash}12 Ma), highlighting the importance of post-boreotropical dispersal and vicariance in shaping intercontinental tropical disjunctions in Annonaceae.}, doi = {10.12705/672.2}, url = {https://www.ingentaconnect.com/contentone/iapt/tax/2018/00000067/00000002/art00003}, author = {Xue, Bine and Tan, Yun-Hong and Thomas, Daniel C. and Chaowasku, Tanawat and Hou, Xue-Liang and Saunders, Richard M. K.} } @article {guo_mega-phylogeny_2017, title = {A mega-phylogeny of the Annonaceae: taxonomic placement of five enigmatic genera and support for a new tribe, Phoenicantheae}, journal = {Scientific Reports}, volume = {7}, number = {1}, year = {2017}, pages = {7323}, abstract = {The 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{\textemdash}and two other genera (Froesiodendron and Melodorum) not yet sampled{\textemdash}are discussed, with recommendations for future research.}, issn = {2045-2322}, doi = {10.1038/s41598-017-07252-2}, url = {https://www.nature.com/articles/s41598-017-07252-2}, author = {Guo, Xing and Tang, Chin Cheung and Thomas, Daniel C. and Couvreur, Thomas L. P. and Saunders, Richard M. K.} } @article {saunders_mitrephora_2019, title = {Mitrephora monocarpa (Annonaceae): a new species from Surat Thani Province, Peninsular Thailand}, journal = {PhytoKeys}, volume = {121}, year = {2019}, month = {may}, pages = {73{\textendash}80}, abstract = {A new species, Mitrephora monocarpa R.M.K.Saunders \& Chalermglin, sp. nov. (Annonaceae), is described from Surat Thani Province in Peninsular Thailand. It resembles two other species, M. alba Ridl. and M. keithii Ridl., with which it is broadly sympatric, but can be distinguished by its solitary flowers (not borne in thyrsoid inflorescences as in most other Mitrephora species), single carpel per flower (and hence single monocarp per fruit) and the lack of a monocarp stipe. A key to the nine Mitrephora species in Thailand is provided.}, issn = {1314-2003}, doi = {10.3897/phytokeys.121.34271}, url = {https://phytokeys.pensoft.net/article/34271/}, author = {Saunders, Richard M. K. and Chalermglin, Piya} } @article {chen_two_2018, title = {Two new species and two new records of Artabotrys (Annonaceae) from Thailand}, journal = {PhytoKeys}, volume = {95}, year = {2018}, pages = {71{\textendash}81}, abstract = {Two new species of Artabotrys are described from Thailand. Artabotrys tanaosriensis J.Chen, Chalermglin \& R.M.K.Saunders, sp. nov., is similar to A. oblanceolatus Craib but differs in its symmetrical, cuneate or decurrent leaf base, externally distinct outer petal blades and claws, deltoid and undulate outer petal blades, rhomboid and undulate inner petal blades and shorter, subsessile and slightly beaked monocarps. Artabotrys spathulatus J.Chen, Chalermglin \& R.M.K.Saunders, sp. nov., is most similar to A. tanaosriensis but differs in having flat outer petal blades, broadly rhomboid outer petal claws, broadly spathulate and strongly concave inner petal blades and strongly beaked monocarps. Two new records for the Flora of Thailand are furthermore reported here: A. punctulatus C.Y.Wu ex S.H.Yuan and A. byrsophyllus I.M.Turner \& Utteridge, which were previously confused with A. aeneus Ast and A. grandifolius King, respectively. A key to Artabotrys species indigenous to Thailand is provided here.}, issn = {1314-2003}, doi = {10.3897/phytokeys.95.23434}, url = {https://phytokeys.pensoft.net/article/23434/}, author = {Chen, Junhao and Chalermglin, Piya and Saunders, Richard M. K.} } @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 {5687, title = {Further fragmentation of the polyphyletic genus Polyalthia (Annonaceae): molecular phylogenetic support for a broader delimitation of Marsypopetalum}, journal = {Systematics and BiodiversitySystematics and Biodiversity}, volume = {9}, number = {1}, year = {2011}, month = {2011/03/21}, pages = {17-26}, publisher = {Taylor \& Francis}, isbn = {1477-2000}, author = {Xue, Bine and Su, Yvonne C. F. and Mols, Johan B. and Ke{\ss}Ler, Paul J. A. and Saunders, Richard M. K.} } @article {5592, title = {An extended phylogeny of Pseuduvaria (Annonaceae) with descriptions of three new species and a reassessment of the generic status of Oreomitra}, journal = {Systematic BotanySystematic Botany}, volume = {35}, number = {1}, year = {2010}, pages = {30-39}, abstract = {Three new species of Pseuduvaria (Annonaceae) from Peninsular Thailand and Peninsular Malaysia are described and named as P. fragrans, P. gardneri, and P. glossopetala. A recent molecular phylogenetic study, based on 51 species (including P. fragrans), elucidated the evolutionary relationships within the genus. The present study includes P. gardneri and P. glossopetala in the phylogenetic analyses using maximum likelihood and Bayesian inference methods, based on five chloroplast regions (psbA-trnH spacer, trnL-F, matK, rbcL, and atpB-rbcL spacer). The new nomenclatural combination Pseuduvaria phuyensis is also validated in accordance with the phylogenetic analyses which show that Craibella phuyensis and Pseuduvaria form a well-supported monophyletic clade. The new species and new nomenclature combination bring the total number of species in Pseuduvaria to 56. The taxonomic status of the enigmatic monotypic genus Oreomitra from New Guinea is furthermore evaluated, and the name shown to be synonymous with Pseuduvaria.}, keywords = {classification, NEW GUINEA, PENINSULAR MALAYSIA, SYSTEMATICS, taxonomy, THAILAND}, author = {Su, Yvonne C. F. and Chaowasku, Tanawat and Saunders, Richard M. K.} } @article {5595, title = {Pollen structure, tetrad cohesion and pollen-connecting threads in Pseuduvaria (Annonaceae)}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {143}, number = {1}, year = {2003}, pages = {69-78}, author = {Su, Yvonne C. F. and Saunders, Richard M. K.} } @article {5597, title = {Phylogeny of the basal angiosperm genus Pseuduvaria (Annonaceae) inferred from five chloroplast DNA regions, with interpretation of morphological character evolution}, journal = {Molecular Phylogenetics and EvolutionMolecular Phylogenetics and Evolution}, volume = {48}, year = {2008}, pages = {188 - 206}, author = {Su, Y.C.F. and Smith, G.J.D. and Saunders, Richard M. K.} } @article {5538, title = {Five new nomenclatural combinations in Dasymaschalon and Goniothalamus (Annonaceae)}, journal = {Nordic Journal of BotanyNordic Journal of Botany}, volume = {29}, number = {6}, year = {2011}, pages = {674-676}, publisher = {Blackwell Publishing Ltd}, abstract = {Three new nomenclatural combinations are validated in Dasymaschalon (Annonaceae), with the elevation of varietal names to the specific rank: D. longiusculum (B{\^a}n) Jing Wang \& R. M. K. Saunders, D. megalanthum (Merr.) Jing Wang \& R. M. K. Saunders, and D. minutiflorum (Nurmawati) Jing Wang \& R. M. K. Saunders. New nomenclatural combinations are furthermore validated in Goniothalamus (Annonaceae), following the successful conservation of the generic name over Richella. Two species names in Richella are here transferred to Goniothalamus as G. monospermus (A. Gray) R. M. K. Saunders and G. obtusatus (Baill.) R. M. K. Saunders.}, isbn = {1756-1051}, author = {Saunders, Richard M. K. and Wang, Jing} } @article {5539, title = {Proposal to conserve the name Enicosanthum against Monoon (Annonaceae)}, journal = {TaxonTaxon}, volume = {60}, number = {1}, year = {2011}, pages = {236-237}, author = {Saunders, Richard M. K. and Xue, B.} } @article {5532, title = {Floral evolution in the Annonaceae: hypotheses of homeotic mutations and functional convergence}, journal = {Biological ReviewsBiological Reviews}, volume = {85}, year = {2010}, note = {***}, pages = {571{\textendash}591}, author = {Saunders, Richard M. K.} } @article {5533, title = {The diversity and evolution of pollination systems in Annonaceae}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {169}, number = {1}, year = {2012}, pages = {222-244}, publisher = {Blackwell Publishing Ltd}, abstract = {The pollination biology of Annonaceae has received considerable attention, with data now available for >~45\% of the genera (or genus-equivalent clades) included in recent molecular phylogenetic analyses. This provides a basis for understanding evolutionary shifts in the pollination system within the family. The present study focuses on subfamilies Anaxagoreoideae, Ambavioideae and Annonoideae, for which robust, well-resolved phylogenetic trees are available. Information is summarized on the pollination biology of individual clades and the evolutionary adaptations favouring different pollinator guilds evaluated. Although the majority of species of Annonaceae are pollinated by small beetles, five other pollinator groups are known: large beetles, thrips, flies, bees and cockroaches. Small-beetle pollination is inferred as the ancestral pollination system, with all other systems being derived. Evolutionary shifts to pollination by large beetles, thrips and flies are unlikely to have been significantly constrained by previous adaptations favouring pollination by small beetles, as many of the adaptations to these different pollinator guilds are similar (including protogyny, partially enclosed floral chambers and olfactory cues). In contrast, however, the evolutionary shift to bee pollination has presumably been constrained by both protogyny (as pollen-collecting bees are unlikely to visit pistillate-phase flowers) and the presence of floral chambers.~{\textcopyright} 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 222{\textendash}244.}, keywords = {cantharophily, pollination ecology, reproductive biology}, isbn = {1095-8339}, author = {Saunders, Richard M. K.} } @article {5537, title = {Phylogenetic affinities of Polyalthia species (Annonaceae) with columellar-sulcate pollen: Enlarging the Madagascan endemic genus Fenerivia}, journal = {TaxonTaxon}, volume = {60}, year = {2011}, pages = {1407-1416}, author = {Saunders, Richard M. K. and Su, Y.F.C. and Xue, B.} } @article {5398, title = {Functional Monoecy Due to Delayed Anther Dehiscence: A Novel Mechanism in Pseuduvaria mulgraveana (Annonaceae)}, journal = {PLoS ONEPLoS ONE}, volume = {8}, number = {3}, year = {2013}, pages = {e59951}, publisher = {Public Library of Science}, abstract = {

Unlike most genera in the early-divergent angiosperm family Annonaceae, Pseuduvaria exhibits a diversity of floral sex expression. Most species are structurally andromonoecious (or possibly androdioecious), although the hermaphroditic flowers have been inferred to be functionally pistillate, with sterile staminodes. Pseuduvaria presents an ideal model for investigating the evolution of floral sex in early-divergent angiosperms, although detailed empirical studies are currently lacking. The phenology and pollination ecology of the Australian endemic species Pseuduvaria mulgraveana are studied in detail, including evaluations of floral scent chemistry, pollen viability, and floral visitors. Results showed that the flowers are pollinated by small diurnal nitidulid beetles and are protogynous. Pollen from both hermaphroditic and staminate flowers are shown to be equally viable. The structurally hermaphroditic flowers are nevertheless functionally pistillate as anther dehiscence is delayed until after petal abscission and hence after the departure of pollinators. This mechanism to achieve functional unisexuality of flowers has not previously been reported in angiosperms. It is known that protogyny is widespread amongst early-divergent angiosperms, including the Annonaceae, and is effective in preventing autogamy. Delayed anther dehiscence represents a further elaboration of this, and is effective in preventing geitonogamy since very few sexually mature flowers occur simultaneously in an individual. We highlight the necessity for field-based empirical interpretations of functional floral sex expression prior to evaluations of evolutionary processes.

}, author = {Pang, Chun-Chiu and Scharaschkin, Tanya and Su, Yvonne C. F. and Saunders, Richard M. K.} } @article {5397, title = {The evolution of alternative mechanisms that promote outcrossing in Annonaceae, a self-compatible family of early-divergent angiosperms}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, year = {2013}, pages = {n/a-n/a}, abstract = {Annonaceae flowers are generally hermaphroditic and show high levels of outcrossing, but unlike many other early-divergent angiosperms lack a self-incompatibility mechanism. We reassess the diversity of mechanisms that have evolved to avoid self-pollination in the family. Protogyny occurs in all hermaphroditic flowers in the family, preventing autogamy but not geitonogamy. Herkogamy is rare in Annonaceae and is likely to be less effective as beetles move randomly around the flowers in search of food and/or mates. Geitonogamy is largely avoided in Annonaceae by combining protogyny with floral synchrony, manifested as either pistillate/staminate-phase synchrony (in which pistillate-phase and staminate-phase flowers do not co-occur on an individual) or heterodichogamy (in which two phenologically distinct and reproductively isolated morphs coexist in populations). Unisexual flowers have evolved independently in several lineages, mostly as andromonoecy (possibly androdioecy). Functionally monoecious populations have evolved from andromonoecious ancestors through the loss of staminate function in structurally hermaphroditic flowers. This has been achieved in different ways, including incomplete pollen/stamen development and delayed anther dehiscence. Angiosperms display an enormous diversity of mechanisms to promote xenogamy, many of which are easily overlooked without fieldwork. Floral phenology is particularly important, especially cryptic differences in timing of organ maturation or abscission.~{\textcopyright} 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 00, 000{\textendash}000.}, keywords = {autogamy, delayed anther dehiscence, dichogamy, dioecy, floral synchrony, geitonogamy, herkogamy, incomplete pollen development, protogyny, self-incompatibility, xenogamy}, isbn = {1095-8339}, author = {Pang, Chun-Chiu 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 {4981, title = {Early evolutionary history of the flowering plant family Annonaceae: steady diversification and boreotropical geodispersal}, journal = {Journal of BiogeographyJournal of Biogeography}, volume = {38}, number = {4}, year = {2011}, pages = {664-680}, publisher = {Blackwell Publishing Ltd}, abstract = {Abstract Aim Rain forest-restricted plant families show disjunct distributions between the three major tropical regions: South America, Africa and Asia. Explaining these disjunctions has become an important challenge in biogeography. The pantropical plant family Annonaceae is used to test hypotheses that might explain diversification and distribution patterns in tropical biota: the museum hypothesis (low extinction leading to steady accumulation of species); and dispersal between Africa and Asia via Indian rafting versus boreotropical geodispersal. Location Tropics and boreotropics. Methods Molecular age estimates were calculated using a Bayesian approach based on 83\% generic sampling representing all major lineages within the family, seven chloroplast markers and two fossil calibrations. An analysis of diversification was carried out, which included lineage-through-time (LTT) plots and the calculation of diversification rates for genera and major clades. Ancestral areas were reconstructed using a maximum likelihood approach that implements the dispersal{\textendash}extinction{\textendash}cladogenesis model. Results The LTT plots indicated a constant overall rate of diversification with low extinction rates for the family during the first 80~Ma of its existence. The highest diversification rates were inferred for several young genera such as Desmopsis, Uvariopsis and Unonopsis. A boreotropical migration route was supported over Indian rafting as the best fitting hypothesis to explain present-day distribution patterns within the family. Main conclusions Early diversification within Annonaceae fits the hypothesis of a museum model of tropical diversification, with an overall steady increase in lineages possibly due to low extinction rates. The present-day distribution of species within the two largest clades of Annonaceae is the result of two contrasting biogeographic histories. The {\textquoteleft}long-branch clade{\textquoteright} has been diversifying since the beginning of the Cenozoic and underwent numerous geodispersals via the boreotropics and several more recent long-distance dispersal events. In contrast, the {\textquoteleft}short-branch clade{\textquoteright} dispersed once into Asia via the boreotropics during the Early Miocene and further dispersal was limited.}, keywords = {Biogeographic hypothesis testing, boreotropical hypothesis, diversification rates, Indian rafting, K/Pg boundary, LTT plots, molecular dating, museum model}, isbn = {1365-2699}, author = {Couvreur, Thomas L. P. and Pirie, Michael D. and Chatrou, Lars W. and Saunders, Richard M. K. and Su, Yvonne C. F. and Richardson, James E. and Erkens, Roy H. J.} } @article {4952, title = {The natural history of Annonaceae}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {169}, number = {1}, year = {2012}, pages = {1-4}, publisher = {Blackwell Publishing Ltd}, isbn = {1095-8339}, author = {Chatrou, Lars W. and Erkens, Roy H. J. and Richardson, James E. and Saunders, Richard M. K. and Fay, Michael F.} } @article {4957, title = {A new subfamilial and tribal classification of the pantropical flowering plant family Annonaceae informed by molecular phylogenetics}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {169}, number = {1}, year = {2012}, pages = {5-40}, publisher = {Blackwell Publishing Ltd}, abstract = {The pantropical flowering plant family Annonaceae is the most species-rich family of Magnoliales. Despite long-standing interest in the systematics of Annonaceae, no authoritative classification has yet been published in the light of recent molecular phylogenetic analyses. Here, using the largest, most representative, molecular dataset compiled on Annonaceae to date, we present, for the first time, a robust family-wide phylogenetic tree and subsequent classification. We used a supermatrix of up to eight plastid markers sequenced from 193 ingroup and seven outgroup species. Some of the relationships at lower taxonomic levels are poorly resolved, but deeper nodes generally receive high support. Annonaceae comprises four major clades, which are here given the taxonomic rank of subfamily. The description of Annonoideae is amended, and three new subfamilies are described: Anaxagoreoideae, Ambavioideae and Malmeoideae. In Annonoideae, seven tribes are recognized, one of which, Duguetieae, is described as new. In Malmeoideae, seven tribes are recognized, six of which are newly described: Dendrokingstonieae, Fenerivieae, Maasieae, Malmeeae, Monocarpieae and Piptostigmateae. This new subfamilial and tribal classification is discussed against the background of previous classifications and characters to recognize subfamilies are reviewed.~{\textcopyright} 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 5{\textendash}40.}, keywords = {plastid markers, subfamilies, supermatrix, tribes}, isbn = {1095-8339}, author = {Chatrou, Lars W. and Pirie, Michael D. and Erkens, Roy H. J. and Couvreur, Thomas L. P. and Neubig, Kurt M. and Abbott, J. Richard and Mols, Johan B. and Maas, Jan W. and Saunders, Richard M. K. and Chase, Mark W.} } @article {692, title = {Pruning the polyphyletic genus Polyalthia (Annonaceae) and resurrecting the genus Monoon}, journal = {Taxon}, volume = {65}, year = {2012}, chapter = {1021-1039}, url = {http://www.ingentaconnect.com/content/iapt/tax/2012/00000061/00000005/art00009}, author = {Xue, Bine and Su, Yvonne C. F. and Thomas, Daniel C. and Saunders, Richard M. K.} } @article {668, title = {The diversity and evolution of pollination systems in Annonaceae}, journal = {Botanical Journal of the Linnean Society}, volume = {169}, number = {1}, year = {2012}, pages = {222-244}, publisher = {Blackwell Publishing Ltd}, abstract = {The pollination biology of Annonaceae has received considerable attention, with data now available for >~45\% of the genera (or genus-equivalent clades) included in recent molecular phylogenetic analyses. This provides a basis for understanding evolutionary shifts in the pollination system within the family. The present study focuses on subfamilies Anaxagoreoideae, Ambavioideae and Annonoideae, for which robust, well-resolved phylogenetic trees are available. Information is summarized on the pollination biology of individual clades and the evolutionary adaptations favouring different pollinator guilds evaluated. Although the majority of species of Annonaceae are pollinated by small beetles, five other pollinator groups are known: large beetles, thrips, flies, bees and cockroaches. Small-beetle pollination is inferred as the ancestral pollination system, with all other systems being derived. Evolutionary shifts to pollination by large beetles, thrips and flies are unlikely to have been significantly constrained by previous adaptations favouring pollination by small beetles, as many of the adaptations to these different pollinator guilds are similar (including protogyny, partially enclosed floral chambers and olfactory cues). In contrast, however, the evolutionary shift to bee pollination has presumably been constrained by both protogyny (as pollen-collecting bees are unlikely to visit pistillate-phase flowers) and the presence of floral chambers.~{\textcopyright} 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 222{\textendash}244.}, keywords = {cantharophily, pollination ecology, reproductive biology}, isbn = {1095-8339}, url = {http://dx.doi.org/10.1111/j.1095-8339.2011.01208.x}, author = {Saunders, Richard M. K.} } @article {600, title = {Molecular phylogenetics of Uvaria (Annonaceae): relationships with Balonga, Dasoclema and Australian species of Melodorum}, journal = {Botanical Journal of the Linnean Society}, volume = {163}, number = {1}, year = {2010}, pages = {33-43}, publisher = {Blackwell Publishing Ltd}, abstract = {An extended molecular phylogenetic analysis of Uvaria (Annonaceae) is presented, using maximum parsimony, maximum likelihood and Bayesian methods, based on sequences of four plastid DNA regions (matK, psbA-trnH spacer, rbcL and trnL-F). The additional taxa include the monotypic West African genus Balonga, the monotypic South-East Asian genus Dasoclema and seven Australian representatives of the genus Melodorum. The results indicate that all of these taxa are nested within a well-supported clade otherwise consisting of Uvaria species, indicating that their taxonomic treatment needs to be reassessed. The distinguishing morphological characteristics of the taxa are re-evaluated and interpreted as specialized adaptations of the basic Uvaria structure. The genus Uvaria is accordingly extended following the transfer of these species, necessitating six new nomenclatural combinations and two replacement names.~{\textcopyright} 2010 The Linnean Society of London, Botanical Journal of the Linnean Society, 2010, 163, 33{\textendash}43.}, keywords = {classification, molecular phylogeny, nomenclature, plastid DNA, SYSTEMATICS}, isbn = {1095-8339}, url = {http://dx.doi.org/10.1111/j.1095-8339.2010.01045.x}, author = {Zhou, Linlin and Su, Yvonne C. F. and Chalermglin, Piya and Saunders, Richard M. K.} }