@article {20406, title = {High diversity of Lauraceae from the Oligocene of Ningming, South China}, journal = {Palaeoworld}, volume = {23}, year = {2014}, month = {09/2014}, pages = {336-356}, chapter = {336}, abstract = {

Lauraceae is among the largest and floristically most important woody plant families in subtropical and tropical zones. However, the Cenozoic fossil records of Lauraceae are mostly from mid-latitude regions. Here we described eight lauraceous species from the Oligocene of Ningming, Guangxi, South China on the basis of leaf compressions with cuticular structure, providing new evidence for high diversity of Lauraceae in the low latitude region of the northern hemisphere during the late Paleogene. The extant genera to which the Ningming Oligocene fossils are possibly closely related include Cinnamomum, Neolitsea, Litsea, Alseodaphne, Laurus, and Beilschmiedia. All of these extant genera except Laurus still exist in Guangxi today, whereas Laurus is currently distributed in the Mediterranean and adjacent regions. A cladistic analysis based on leaf architectural and leaf cuticular characters for Paleogene Lauraceae species in the world indicated a possible relationship between European and East Asian Paleogene species.

}, keywords = {Biogeography, Cladistic analysis, cuticle, High diversity, Lauraceae, Oligocene}, doi = {10.1016/j.palwor.2014.08.001}, author = {Shi, Gong-Le and Xie, Zhi-Ming and Li, Hao-Min} } @mastersthesis {20393, title = {Lauraceae no Parque Estadual das Laur{\'a}ceas - taxonomia, fitossociologia e fitogeografia}, volume = {PhD}, year = {2018}, pages = {233}, school = {Universidade Federal do Paran{\'a}}, address = {Curitiba}, abstract = {

O Parque Estadual das Laur\áceas \é o maior parque estadual no Paran\á, sul do Brasil. Localiza-se nos munic\ípios de Adrian\ópolis, Bocai\úva do Sul e Tunas do Paran\á, em uma \área montanhosa do Primeiro Planalto Paranaense, conhecida como Serra do A\çungui, a qual faz parte da bacia do rio Ribeira. O parque \é quase que totalmente coberto pela Floresta Ombr\ófila Densa e, como seu nome sugere, tem consider\ável presen\ça de \árvores da fam\ília Lauraceae. Apesar disso, faltava informa\ç\ão detalhada sobre esse grupo de plantas na \área. O objetivo principal desse trabalho \é gerar conhecimento sobre suas esp\écies, reunindo informa\ç\ões que possam auxiliar a gest\ão dessa unidade de conserva\ç\ão. No primeiro cap\ítulo n\ós apresentamos o tratamento taxon\ômico das esp\écies que ocorrem no parque e em sua zona de amortecimento. Foi elaborada chave de identifica\ç\ão, descri\ç\ões, dados sobre distribui\ç\ão geogr\áfica e fenologia, pranchas fotogr\áficas, al\ém de coment\ários que auxiliam a identifica\ç\ão de cada uma delas. Constatamos a exist\ência de 51 esp\écies distribu\ídas em dez g\êneros, o que representa a maior riqueza de esp\écies j\á registrada por um estudo taxon\ômico regionalizado para a fam\ília no sul do Brasil. No segundo cap\ítulo n\ós analisamos uma comunidade de Lauraceae dominante em um remanescente muito bem conservado dentro do parque, buscando descrever sua estrutura, e com isso, resgatar a discuss\ão sobre os est\ágios sucessionais das florestas sul brasileiras atrav\és da sua compara\ç\ão com diversos par\âmetros. Para isso, realizamos uma amostragem fitossociol\ógica de dois hectares de floresta. Constatamos que a fam\ília \é capaz de se organizar em uma comunidade complexa inserida na matriz florestal, com v\ários estratos, v\árias idades e v\árias esp\écies, com caracter\ísticas de est\ágio cl\ímax. Conclu\ímos tamb\ém que o parque possui uma associa\ç\ão vegetal tipo Ocotietum, que \é uma tend\ência para os est\ágios sucessionais mais desenvolvidos da Floresta Ombr\ófila Densa Montana subtropical. No terceiro cap\ítulo n\ós revisamos a distribui\ç\ão geogr\áfica das esp\écies que foram identificadas no parque, buscando compreender essa comunidade no contexto brasileiro, em especial no Bioma Mata Atl\ântica. Para isso, realizamos an\álises de similaridade flor\ística com outras 46 comunidades no bioma e tamb\ém an\álises de esp\écies indicadoras. Constatamos a forma\ç\ão de sete grupos flor\ísticos. A comunidade do parque ficou agrupada com outras quinze, todas situadas na regi\ão montanhosa ao longo da costa Atl\ântica, entre os estados do Rio de Janeiro e Santa Catarina. Esse grupo flor\ístico de Lauraceae \é aqui denominado como \“Serra do Mar\”, para o qual foram selecionadas 17 esp\écies indicadoras.

The Laur\áceas State Park is the largest state park in Paran\á, southern Brazil. It is located in the municipalities of Adrian\ópolis, Bocai\úva do Sul, and Tunas do Paran\á, on a mountainous area of Paran\á\’s First Plateau (Primeiro Planalto Paranaense) known as A\çungui mountain range, which is part of the Ribeira river basin. The park is nearly entirely covered by Atlantic Rainforest and, as its name suggests, it has a large presence of trees of the Lauraceae family. Nevertheless, detailed information about this group of plants in the area was lacking. The main goal of the present paper is to generate knowledge about its species, gathering information that may be helpful on the management of this conservation unit. In the first chapter we present the taxonomic treatment of the species that occur in the park and in its buffer zone. Identification keys, descriptions, data on geographic distribution and phenology, and photographic plates are provided, as well as comments that help to identify each species. We found 51 species distributed in ten genera, which represent the greatest species richness recorded by a regionalized taxonomic study for the family in southern Brazil. In the second chapter we analyzed a dominant community of Lauraceae in a very well preserved remnant within the park, aiming to describe its structure, and with this, we bring up the discussion about the succession stages of the Brazilian forests through the comparison of several parameters. For this, we performed a phytosociological sampling of two hectares of forest. We verified that the family is able to organize itself in a complex community inserted in the forest matrix, with several strata, several ages and several species, with characteristics of climax stage. We conclude also that the park has an Ocotietum type of vegetation, which is a tendency for the most developed successional stages of the subtropical Montane Atlantic Rainforest. In the third chapter we review the geographic distribution of the species that were identified in the park, searching to understand this community in the Brazilian context, especially in the Atlantic Forest Biome. For this, we performed analyses of floristic similarity including other 46 communities from the same biome, and also analyses of indicator species. Seven floristic groups were recovered. The park community was grouped with fifteen others, all located in the mountainous region along the Atlantic Ocean, between the states of Rio de Janeiro and Santa Catarina. This particular floristic group of Lauraceae is here named \"Serra do Mar\", for which 17 indicator species were selected.

}, keywords = {Atlantic Rainforest, Biogeography, Botany, Ecology, Forestry succession}, author = {Marcelo L Brotto} } @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 {20320, title = {Origins and evolution of cinnamon and camphor: A phylogenetic and historical biogeographical analysis of the Cinnamomum group (Lauraceae)}, journal = {Molecular Phylogenetics and Evolution}, volume = {96}, year = {2016}, pages = {33-44}, chapter = {33}, abstract = {

Tropical and subtropical amphi-Pacific disjunction is among the most fascinating distribution patterns, but received little attention. Here we use the fossil-rich Cinnamomum group, a primarily tropical and sub-tropical Asian lineage with some species distributed in Neotropics, Australasia and Africa to shed light upon this disjunction pattern. Phylogenetic and biogeographic analyses were carried out using sequences of three nuclear loci from 94 Cinnamomum group and 13 outgroup samples. Results show that although there are three clades within a monophyletic Cinnamomum group, Cinnamomum and previously recognized subdivisions within this genus were all rejected as natural groups. The Cinnamomum group appears to have originated in the widespread boreotropical paleoflora of Laurasia during the early Eocene (ca. 55 Ma). The formation and breakup of the boreotropics seems to have then played a key role in the formation of intercontinental disjunctions within the Cinnamomum group. The first cooling interval (50\–48 Ma) in the late early Eocene resulted in a floristic discontinuity between Eurasia and North America causing the tropical and subtropical amphi-Pacific disjunction. The second cooling interval in the mid-Eocene (42\–38 Ma) resulted in the fragmentation of the boreotropics within Eurasia, leading to an African\–Asian disjunction. Multiple dispersal events from North into South America occurred from the early Eocene to late Miocene and a single migration event from Asia into Australia appears to have occurred in the early Miocene.

}, keywords = {Amphi-Pacific disjunction, Biogeography, Boreotropical paleoflora, Cinnamomum group, Lauraceae, molecular phylogeny}, doi = {http://dx.doi.org/10.1016/j.ympev.2015.12.007}, author = {Huang, Jian-Feng and Li, Lang and van der Werff, Henk and Li, Hsi-Wen and Rohwer, Jens G. and Crayn, Darren M. and Meng, Hong-Hu and van der Merwe, Marlien and Conran, J. G. and Li, Jie} } @article {19803, title = {A phylogenetic analysis of the Cryptocarya group (Lauraceae), and relationships of Dahlgrenodendron, Sinopora, Triadodaphne, and Yasunia}, journal = {Phytotaxa}, volume = {158}, year = {2014}, month = {02/2014}, pages = {111-132}, chapter = {111}, abstract = {

A phylogenetic analysis based on nuclear ITS and plastid trnK intron sequences confirms that Dahlgrenodendron, Sinopora, Triadodaphne, and Yasunia are members of the Cryptocarya group, as expected from morphology.\  Dahlgrenodendron from South Africa is sister to Aspidostemon from Madagascar. Triadodaphne inaequitepala is nested within Endiandra (both from Australasia), and Yasunia from South America is nested among South American Beilschmiedia species. Sinopora is a member of the Beilschmiedia clade, but its precise position is still uncertain.\  Among large genera of the group, Cryptocarya is clearly monophyletic, and Endiandra appears to be as well, if T. inaequitepala is included. Beilschmiedia is paraphyletic with respect to (at least) Potameia and Yasunia. Most well-supported clades within genera are geographically homogeneous, except a clade including the Chilean Cryptocarya alba and two New Caledonian species. Both Beilschmiedia and Cryptocarya have reached the Americas more than once.\  Four-locular anthers are plesiomorphic in the Cryptocarya group; two-locular anthers have arisen by fusion of the two pollen sacs of a theca. In the plesiomorphic fruit type, the ovary is completely enclosed in receptacular tissue; a superior fruit, seated free on its pedicel, is a synapomorphy of the Beilschmiedia clade.

}, keywords = {Biogeography, evolution, floral morphology}, issn = {1179-3163}, doi = {http://dx.doi.org/10.11646/phytotaxa.158.2.1}, author = {Rohwer, Jens G. and Pedro L.R. de Moraes and Rudolph, Barbara and van der Werff, Henk} }