@article {20401, title = {The complete chloroplast genomes of the evergreen tree species Cinnamomum camphora and Cinnamomum parthenoxylon (Laurales: Lauraceae)}, year = {2019}, abstract = {

Complete chloroplast genomes were characterized for two economically important tree species, Cinnamomum camphora and Cinnamomum parthenoxylon. The chloroplast genomes are 152,721 bp (C. camphora) and 152,760 bp (C. parthenoxylon) long, respectively, and both comprise a pair of inverted repeat (IR) regions, separated by a large single-copy (LSC) region and a small single-copy (SSC) region. The same panel of 112 gene species were annotated for both species, including 78 protein-coding (PCG), 30 tRNA, and 4 rRNA gene species. Phylogenetic analysis suggests that the species delimitation and interrelationship of C. camphora and C. parthenoxylon may need further investigation.

}, doi = {10.1080/23802359.2019.1574677}, author = {Wu, Yi and Wei, Wei and Liu, Li and Liu, Gang and Guo, Qi-Qiang and Qian, Zeng-Qiang} } @article {20399, title = {A new species of Chlorocardium (Lauraceae) from Ecuador}, journal = {Novn}, volume = {27}, year = {2019}, month = {05/2019}, pages = {81-86}, chapter = {81}, abstract = {

Chlorocardium esmeraldense van der Werff, a new species from the Pacific coast of Ecuador, is described and illustrated. The circumscription of Chlorocardium Rohwer, H. G. Richt. \& van der Werff is widened. The genus now includes three species, one with tetramerous flowers and two with trimerous flowers.

}, keywords = {Chlorocardium, Ecuador, Lauraceae}, doi = {10.3417/2019348}, author = {van der Werff, Henk} } @article {20398, title = {A revision of Cinnamomum Schaeff. (Lauraceae) for Peninsular Malaysia and Singapore}, journal = {Gardens{\textquoteright} Bulletin Singapore}, volume = {71}, year = {2019}, pages = {89-139}, chapter = {89}, abstract = {

A revision of all species of the genus Cinnamomum Schaeff. (Lauraceae) occurring in Peninsular Malaysia and Singapore is presented with a summary of taxonomic history, notable features of morphology, a key to species, and a description, distribution map, Provisional IUCN Conservation Assessment for each species, together with notes on ecology and ethnobotany. In this revision, twenty-two distinct species are recognised, including one former variety that is elevated to species level as Cinnamomum selangorense (Ridl.) de Kok. Eleven names are lectotypified (Camphora inuncta Nees; Cinnamomum cinereum Gamble, C. graciliflorum Gamble, C. malaccense Meisn., C. ridleyi Gamble, C. rhynchophyllum Miq., C. sintoc Blume, C. subcuneatum Miq., C. velutinum Ridl., and C. vimineum Wall. ex Nees; Laurus malabathrum Wall. ex Nees), and five names are placed into synonymy for the first time. A small number of species are considered to have a Provisional IUCN Conservation Assessment of Least Concern, while most are either Endangered or Critically Endangered, with one species considered to be Data Deficient (Cinnamomum trintaense Kosterm.).

}, doi = {10.26492/gbs71(1).2019-07}, author = {Rogier P.J. de Kok} } @article {20397, title = {Incongruence of morphological determinations and DNA barcode sequences: a case study in Cinnamomum (Lauraceae)}, journal = {Willdenowia}, volume = {49}, year = {2019}, pages = {383-400}, chapter = {383}, abstract = {

In the course of molecular systematic studies of Lauraceae we received a sample of a plant cultivated under the name Cinnamomum porrectum in the Botanical Garden M\ünchen-Nymphenburg. Preliminary determinations, both morphologically based on the Flora of China (Li \& al. 2008) and by chloroplast sequences (psbA-trnH spacer, trnK intron including matK gene, trnL intron, trnL-trnF spacer and trnQ-rps16 spacer) obtained by Sanger sequencing suggested that it was C. camphora, still the plant looked different from other individuals of C. camphora cultivated in the botanical gardens of Berlin, Hamburg, Mainz, Munich and Oldenburg. Attempts to sequence the more informative nuclear internal transcribed spacer repeatedly led to mixed signals. We therefore used Illumina sequencing on a set of pre-amplified molecular markers (ITS, trnK 3\′ and 5\′ intron, trnL intron, and the intergenic spacers psbA-trnH, trnL-trnF, as well as parts of the trnQ-rps16 spacer), and downloaded available sequences of C. camphora and C. parthenoxylon from GenBank for comparison. Considerable differences were found among these sequences, but the haplotype groups do not coincide with the current species determinations. Particularly the internal transcribed spacer sequences are rather diverse, suggesting possible misidentifications, contaminations, and/or a common gene pool that is larger than anticipated. Concerning the plant in question, our results suggest that it may be a hybrid, with C. camphora as the maternal and another species, possibly C. parthenoxylon, as the paternal parent.

}, keywords = {Cinnamomum, interspecific hybridization, ITS, Lauraceae, matK, NGS, psbA-trnH spacer, trnK intron, trnL intron, trnL-trnF spacer, trnQ-rps16 spacer}, doi = {10.3372/wi.49.49309}, author = {Rohwer, Jens G. and Trofimov, Dimitrij and Mayland-Quellhorst, Eike and Albach, Dirk} } @article {20394, title = {A new species and new combinations of Neotropical Cinnamomum}, journal = {Novon}, volume = {27}, year = {2019}, month = {06/2019}, pages = {137-139}, chapter = {137}, abstract = {

A new species of Cinnamomum Schaeff. from the Pacific coast of Ecuador is described and discussed. Cinnamomum latifolium van der Werff is distinctive for its broad triplinerved leaves with canaliculate petioles, densely pubescent young twigs, and 2-locular inner stamens. In addition, six species recently described in Aiouea Aubl. should, in this author\’s opinion, be placed within Cinnamomum. The new combinations C.ampullaceum (Lorea-Hern.) van der Werff, C. hirsutum (Lorea-Hern.) van der Werff, C. paratriplinerve (Lorea-Hern.) van der Werff, C. pseudoglaziovii (Lorea-Hern.) van der Werff, C. rubrinervium (Lorea-Hern.) van derWerff, and C. uninervium (Lorea-Hern.) van der Werff are accordingly published. The author citation of the recently transferred C. baitelloanum van der Werff \& P.L.R. Moraes to Aiouea is rejected.

}, keywords = {Aiouea, Cinnamomum, Ecuador, Lauraceae, new species}, doi = {10.3417/2019346}, author = {van der Werff, Henk} } @article {20392, title = {Riqueza e endemismo de Lauraceae no Paran{\'a}: aspectos fitogeogr{\'a}ficos e {\'a}reas priorit{\'a}rias para a conserva{\c c}{\~a}o}, journal = {Rodrigu{\'e}sia}, volume = {70}, year = {2019}, pages = {1-14}, abstract = {

Lauraceae est\á entre as tr\ês principais fam\ílias do componente arb\óreo das florestas no Paran\á, sendo elemento frequente nos estudos fitossociol\ógicos e biogeogr\áficos. Apesar disso, a fam\ília continua insuficientemente conhecida no estado. Nossos objetivos foram: reconhecer as esp\écies de Lauraceae no Paran\á, relacionando-as com as unidades fitogeogr\áficas; mapear as regi\ões com maior riqueza de esp\écies e concentra\ç\ão de endemismos; identificar \áreas de complementaridade e compar\á-las com as \áreas priorit\árias para conserva\ç\ão. Para isso, n\ós utilizamos registros de cole\ç\ões de 23 herb\ários nacionais, totalizando 3.332 esp\écimes analisados, plotando suas coordenadas no mapa fitogeogr\áfico do estado. Constatamos que no Paran\á ocorrem 76 esp\écies, das quais onze s\ão citadas pela primeira vez no estado. A Floresta Ombr\ófila Densa abrange o maior n\úmero de esp\écies (59 spp.), seguida pela Floresta Ombr\ófila Mista (31 spp.), Floresta Estacional Semidecidual (23 spp.), Savana (9 spp.) e Estepe (2 spp.). As regi\ões da Serra do Mar e Vale do Ribeira apresentam a maior riqueza e endemismo. O Parque Estadual das Laur\áceas \é uma unidade de conserva\ç\ão estrat\égica, pois abriga dois ter\ços das esp\écies paranaenses, com sete end\êmicas.

Lauraceae are among the three main families of the arboreal component of the forests in Paran\á, being a frequent element in phytosociological and biogeographic studies. In spite of this, the family remains insufficiently known in the state. Our aims were: to recognize the species of Lauraceae in Paran\á, relating them to the phytogeographic units; map the regions with the greatest species richness and concentration of endemisms; identify complementarity areas and compare them with the priority areas for conservation. We used collection records from 23 national herbaria, totaling 3,332 specimens analyzed, plotting their geographic coordinates onto the phytogeographic map of the state. We found that there are 76 species in Paran\á, of which eleven are cited for the first time in the state. The Atlantic Rainforest contains the largest number of species (59 spp.), followed by the Araucaria Rainforest (31 spp.), Semideciduous Forest (23 spp.), Savanna (9 spp.), and Grasslands (2 spp.). The Serra do Mar and Ribeira Valley regions have the highest concentration of species, as well as the highest index of endemism. The Laur\áceas State Park is a strategic conservation unit, because it houses two thirds of the species of Paran\á, including seven endemic.

}, keywords = {Atlantic Forest, Biogeography, complementarity, endemism, priority areas}, doi = {10.1590/2175-7860201970044}, author = {Marcelo L Brotto and Uhlmann, Alexandre and Blum, Christopher T and Roderjan, Carlos V} } @article {20391, title = {Alseodaphnopsis (Lauraceae) revisited}, journal = {Blumea}, volume = {64}, year = {2019}, pages = {186-189}, chapter = {186}, abstract = {

Generic delimitations among the Asian members of the Persea group, including the recently described genus Alseodaphnopsis, are discussed. These genera, with the exception of Alseodaphnopsis, are characterized by reproductive characters. A study of flowers of Alseodaphnopsis species found that Alseodaphnopsis species have unisexual flowers and that Alseodaphnopsis is better defined by its unisexual flowers than by vegetative characters. This is the first report of the presence of unisexual flowers in any member of the Persea group.

}, doi = {10.3767/blumea.2019.64.02.10}, author = {van der Werff, Henk} } @article {20390, title = {Notes on Indian Neolitsea (Lauraceae){\textemdash}two new varietal combinations under N. cassia and N. foliosa and typification of five names}, journal = {Phytotaxa}, volume = {419}, year = {2019}, month = {10/2019}, pages = {209-214}, chapter = {209}, author = {Chakrabarty, Tapas} } @article {20389, title = {Plastid phylogenomics improve phylogenetic resolution in the Lauraceae}, year = {2019}, month = {08/2019}, abstract = {

The family Lauraceae is a major component of tropical and subtropical forests worldwide, and includes somecommercially important timber trees and medicinal plants. However, phylogenetic relationships within Lauraceae have long been problematic due to low sequence divergence in commonly used markers, even between morphologically distinct taxa within the family. Here wepresent phylogenetic analyses of 43 newly generated Lauraceae plastomes together with 77 plastomes obtained from GenBank, representing 24 genera of Lauraceae and 17 related families of angiosperms, plus nine barcodes from 19 additional species in 18 genera of Lauraceae, in order to reconstruct highly supported relationships for the Lauraceae. Our phylogeny supports the relationships: sisterhood of the Lauraceae and a clade containing Hernandiaceae and Monimiaceae, with Atherospermataceae and Gomortegaceae being the next sistergroups, followed by Calycanthaceae. Our results highlight a monophyletic Lauraceae, with nine well-supported clades as follows: Hypodaphnis clade, Beilschmiedia\–Cryptocarya clade, Cassytha clade, Neocinnamomum clade, Caryodaphnopsis clade, Chlorocardium\–Mezilaurus clade, Machilus\–Persea clade, Cinnamomum\–Ocotea clade, and Laurus\–Neolitsea clade. The topology recovered here is consistent with the patterns of plastome structural evolution and morphological synapomorphies reported previously. More specifically, flower sex, living type, inflorescence type, ovary position, anther locus number, leaf arrangement, leaf venation, lateral vein number, tree height, and inflorescence location all represent morphological synapomorphies of different lineages. Our findings have taxonomic implications and two new tribes, Caryodaphnopsideae and Neocinnamomeae, are described, and the composition of four other tribes is updated. The phylogeny recovered here provides a robust phylogenetic framework through which to address the evolutionary history of the Magnoliids, the third-largest group of Mesangiospermae.

}, keywords = {chloroplast, Laurales, magnoliids, phylogenetic relationships}, doi = {10.1111/jse.12536}, author = {Song, Yu and Yu, Wen-Bin and Tan, Yun-Hong and Jin, Jian-Jun and Wang, Bo and Yang, Jun-Bo and Liu, Bing and Corlett, Richard T} } @article {20388, title = {Persea himalayensis (Lauraceae), a superfluous name for Machilus odoratissima and second-step lectotypification of Machilus odoratissima}, journal = {Phytotaxa}, volume = {420}, year = {2019}, month = {10/2019}, pages = {91-94}, chapter = {91}, author = {Kumar, Anand} } @article {20386, title = {Plastome sequences help to improve the systematic position of trinerved Lindera species in the family Lauraceae}, journal = {PeerJ}, volume = {e7662}, year = {2019}, month = {10/2019}, pages = {1-17}, chapter = {1}, abstract = {

Lindera is a genus (c. 100 spp.) of trees belonging to the \“core Laureae\” group in the family Lauraceae. It is often confused with Litsea, and the systematics of the genus is unclear. Here, total 10 complete plastomes from nine trinerved Lindera species and another species Lindera obtusiloba (sect. Palminerviae Meissn.) were sequenced. Nine highly variable regions, trnH-GUG/psbA, psbM/trnD-GUC, petA/psbL, ndhF, trnL-UAG/ndhD, and ycf1, were identified among the 10 Lindera species. In addition, a total of 1,836 mutation events including six micro-inversions, 156 indels, and 1,674 substitutions, were also summarized. Comparing our sequences with other available plastomes in the \“core Laureae,\” we put forward that six hypervariable loci, trnH-GUG/psbA, ndhF, ndhF/rpl32, trl32/trnL-UAG, ndhD, and ycf1, could potentially be used as plastid barcode candidates for species identification. Further phylogenetic analyses were conducted using 49 complete Lauraceae plastomes. The results supported a close relationship among trinerved Lindera species and suggested an improved trinerved group comprising species of trinerved Lindera species and Iteadaphne caudate.

}, keywords = {Comparative genomics, Complete plastid genome, Lauraceae, Lindera, Phylogenetic relationship}, doi = {10.7717/peerj.7662}, author = {Tian, Xiangyu and Ye, Junwei and Song, Yu} } @article {20385, title = {Stout camphor tree genome fills gaps in understanding of flowering plant genome evolution}, year = {2019}, abstract = {

We present reference-quality genome assembly and annotation for the stout camphor tree (Cinnamomum kanehirae (Laurales, Lauraceae)), the first sequenced member of the Magnoliidae comprising four orders (Laurales, Magnoliales, Canellales and Piperales) and over 9,000 species. Phylogenomic analysis of 13 representative seed plant genomes indicates that magnoliid and eudicot lineages share more recent common ancestry than monocots. Two whole-genome duplication events were inferred within the magnoliid lineage: one before divergence of Laurales and Magnoliales and the other within the Lauraceae. Small-scale segmental duplications and tandem duplications also contributed to innovation in the evolutionary history of Cinnamomum. For example, expansion of the terpenoid synthase gene subfamilies within the Laurales spawned the diversity of Cinnamomum monoterpenes and sesquiterpenes.

}, author = {Chaw, Shu-Miaw and Liu, Yu-Ching and Wu, Yu-Wei and Wang, Han-Yu and Lin, Chan-Yi I and Wu, Chung-Shien and Ke, Huei-Mien and Chang, Lo-Yu and Hsu, Chih-Yao and Yang, Hui-Ting and Sudianto, Edi and Hsu, Min-Hung and Wu, Kun-Pin and Wang, Ling-Ni and Leebens-Mack, James H and Tsai, Isheng J} } @article {20377, title = {Two new species of Lauraceae from Esp{\'\i}rito Santo, Brazil}, journal = {Harvard Papers in Botany}, volume = {24}, year = {2019}, month = {12/2019}, pages = {249-268}, chapter = {249}, abstract = {

Two new species from the Brazilian Atlantic rainforest of Esp\írito Santo State, Licaria spiritusanctensis and Ocotea teresae, are described and illustrated. Their putative relationships within the respective genera are discussed. We also provide illustrations and comments on micromorphological and anatomical features of leaves of these new species, comparing them to those of congenerics and showing that they can be useful for recognition of different taxa.

}, keywords = {Leaf cuticle, leaf vascular bundle, Licaria, Ocotea, taxonomy}, doi = {10.3100/hpib.v24iss2.2019.n11}, author = {Pedro L.R. de Moraes and Fernandes, Tamiris B and Freitas Azevedo, Igor H and Barbosa, Tiago D M} } @article {20373, title = {Towards a phylogenetic classification of the Ocotea complex (Lauraceae): classification principles and reinstatement of Mespilodaphne}, journal = {Botanical Journal of the Linnean Society}, volume = {190}, year = {2019}, month = {04/2019}, pages = {25-50}, chapter = {25}, abstract = {

The large genus Ocotea (c. 400 species) has been known to be paraphyletic with respect to most other Neotropical genera of Lauraceae for almost 20 years, but a phylogenetic classification has not yet been proposed. Here we present a phylogenetic analysis, based on ITS and psbA-trnH sequences of 123 species from the Ocotea complex, focused on the Neotropical species with bisexual flowers. Our results show that several well-supported clades can be recognized morphologically. We discuss the principles of splitting monophyletic genera from large paraphyletic groups, and we reinstate the genus Mespilodaphne as a first step towards a phylogenetic classification. In addition, three species previously included in Aiouea are transferred to Damburneya.

}, keywords = {classification principles, fruit morphology, internal transcribed spacer, paraphyletic groups, phylogenetic analysis, psbA-trnH, stamen morphology}, doi = {10.1093/botlinnean/boz010}, author = {Trofimov, Dimitrij and Pedro L.R. de Moraes and Rohwer, Jens G.} }