Gustavo Hiroaki Shimizu

• PhD
• PostDoc Position at State University of Campinas (UNICAMP)

The family Vochysiaceae A.St.-Hil. (Order: Myrtales) has been reported to occur in South and Central America and the equatorial region of West Africa. Six genera and approximately 160 species belonging to this family occur in Brazil. The objective of the present study was to morphologically describe the species of Vochysiaceae that occur in the Cer...

Background The "Serra da Concórdia" is part of the Atlantic Forest phytogeographical domain in the Brazilian state of Rio de Janeiro and it has a predominant phytophysiognomy of Semideciduous Seasonal Forest. This region underwent intense habitat loss and fragmentation during the 19th century, due to coffee plantations and later pastures. With the...

The Cyphomandra clade, a distinct group within the Solanum L. genus, is characterized by remarkable traits, including large chromosomes and big genome sizes. We aimed to investigate whether these features are conserved within the Cyphomandra clade and how they differentiate this group from other Solanum species. We elaborated karyotypes based on CM...

COLE TCH, CARVALHO FA, SHIMIZU G (2024) Filogenia das RUBIACEAE © Cole, Carvalho, Shimizu 2024 (CC-BY), Portuguese version of: COLE TCH (2024) RUBIACEAE Phylogeny Poster (RubPP) • seleção de gêneros principais da família do café • árvore hipotética baseada em dados filogenéticos moleculares • filogenia e classificação de acordo com Wikström et al....

Vismia is a neotropical genus and in Brazil it is currently represented by 30 species. Along with the study of the species that occur in this country, we assessed the nomenclatural questions involved with their names, and a first part of these results are presented. Twelve lectotypes, including one as a second-step, were designated for correct name...

The pantropical genus Connarus is the largest within Connaraceae and comprises ca. 80 species, most of which occur in the Neotropics. The genus is potentially economically important as several taxa produce metabolites of medicinal interest. Morphologically, Connarus differs from other members of the family mainly by the punctate perianth, the singl...

O Parque Nacional das Sempre Vivas (PNSV) é uma Unidade de Conservação de Proteção Integral, abrange os municípios de Bocaiúva, Buenópolis, Diamantina e Olhos d´Água, no estado de Minas Gerais, entre as coordenadas 43°46’37”S e 17° 48’22”W. A sede do Parque está localizada no município de Diamantina e dista cerca de 53 quilômetros da entrada princi...

Based on recent field work on an insular granitic outcrop in southeast Brazil, a new Tillandsia species was collected and described here. Tillandsia alcatrazensis belongs to T. subg. Anoplophytum and is morphologically similar to T. geminiflora, from which it differs by the larger size of the whole plant in flower, larger floral bracts and longer f...

Citizen science has the potential to increase the efficiency of scientific data collection. However, such initiatives often focus on unique taxa for each record, not necessarily involving interspecific interactions. Moreover, whether openly available unstructured citizen science data can contribute to better understand ecological patterns is still...

A Floresta Nacional do Tapajós (Flona Tapajós) é uma unidade de conservação (UC) de uso sustentável criada através do Decreto n° 73.684, de 19 de fevereiro de 1974. Delimitada a oeste pelo rio Tapajós e a leste pela rodovia BR-163, ao longo de sua história sua área original foi modificada diversas vezes, possuindo atualmente 527.319 hectares locali...

Aspidosperma is one of the most diverse and economically relevant taxa within Apocynaceae, leading to several taxonomic studies being carried out with the genus. However, since its species number varies widely depending on the treatment, questions regarding which species ought to be recognized in the genus are frequent. We addressed all names and d...

The new species Ouratea yamamotoana (Ochnaceae) from the Brazilian Atlantic Forest biodiversity hotspot is described and illustrated. The new species resembles Ouratea camposportoi, from which it differs by the persistent stipules, chartaceous leaves with cordate or slightly auriculate base, flowers with smaller pedicels, spathulate or elliptic pet...

Vochysia sobralii, a new species of Vochysiaceae endemic to the Serra do Cachimbo, in the state of Pará, Brazil, is described and illustrated in this study. The newly described species is included in Vochysia section Pachyantha, which comprises species with tomentose ovary and without petals. Additionally, two updated identification keys (one dicho...

Background and aims – Mitracarpus semirianus, an overlooked new species from the “campo rupestre” of the Chapada Diamantina, in the state of Bahia, northeastern Brazil, is here described and illustrated. Specimens of the new species have been previously identified as M. frigidus or M. lhotzkyanus, with which its distinction is discussed. We also pr...

The Atlantic Forest is one of the most threatened biomes in the world. Despite that, this biome still includes many areas that are poorly known floristically, including several protected areas, such as the "Floresta Nacional do Rio Preto" ("Flona do Rio Preto"), located in the Brazilian State of Espírito Santo. This study used a published vascular...

The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver-sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxo-nomic impediment to biodiversity research and conservation planning. The taxonomic impedi...

Premise To further advance the understanding of the species-rich, economically and ecologically important angiosperm order Myrtales in the rosid clade, comprising nine families, approximately 400 genera and almost 14,000 species occurring on all continents (except Antarctica), we tested the Angiosperms353 probe kit. Methods We combined high-throug...

The family Vochysiaceae, representative for Brazilian Cerrado, does not stand out in Caatinga environments. Due to the lack of studies that address the behavior of species of this family in disjunct Cerrado environments, this study aimed to investigate structural, ecological and phenological aspects of Qualea parviflora and Callisthene fasciculata...

The urge to organise the world around us is an essential part of human nature. Naming and categorising enable us to store and access information ef ciently. The need to name and categorise extends to the natural world and, in particular, to living organisms. The science underpinning this area of knowledge is called Taxonomy, and is as old as humani...

Premise: Despite the fast pace of exploration of the patterns and processes influencing Neotropical plant hyperdiversity, the taxa explored are mostly from large groups that are widely distributed, morphologically diverse, or economically important. Vochysiaceae is an example of an undersampled taxon, providing an excellent system for investigatin...

Phylogenomics has become increasingly popular in recent years mostly due to the increased affordability of next generation sequencing techniques. Phylogenomics has sparked interest in multiple fields of research, including systematics, ecology, epidemiology, and even personalized medicine, agriculture and pharmacy. Despite this trend, it is usually...

The current classification of angiosperms is based primarily on concatenated plastid markers and maximum likelihood (ML) inference. This approach has been justified by the assumption that plastid DNA (ptDNA) is inherited as a single locus and that its individual genes produce congruent trees. However, structural and functional characteristics of pt...

Popularmente conhecido como lacre, Vismia (Hypericaceae) é um gênero relativamente pouco estudado e que necessita de investigações detalhadas sobre caracteres diagnósticos que permitam distinguir suas espécies. No âmbito dos estudos morfológicos e taxonômicos em curso sobre o gênero, o presente trabalho teve como objetivos analisar e caracterizar a...

The Global Strategy for Plant Conservation (GSPC) was established by the Conference of Parties in 2002 to decrease the loss of plant diversity, reduce poverty and contribute to sustainable development. To achieve this overarching goal, the GSPC has established a series of targets, one of which is to ensure that plant diversity is well understood, s...

Vismia comprises approximately 60 neotropical species, 30 of which are known from Brazil. Most Brazilian species occur in the Amazon Forest, but seven occur in the Atlantic Forest. The most relevant characters for the identification of Vismia species are leaf indument, presence or absence of glands and/ or canals in the petals and sepals, number of...

RESUMO São apresentadas as espécies de Hypericaceae registradas para a Reserva Ducke, Estado do Amazonas, incluindo chave de identificação, descrições, ilustrações, comentários sobre distribuição geográfica e hábitats. A família está representada na área por cinco espécies do gênero Vismia: Vismia cauliflora, V. cayennensis, V. guianensis, V. japur...

With five neotropical genera and ca. 220 species, Vochysieae is the largest tribe of Vochysiaceae, comprising more than 90 % of its species. Preliminary phylogenetic analyses with matK sequence data indicated that Vochysieae may be paraphyletic, separated into the clades QRC (Qualea, Ruizterania and Callisthene) and VS (Vochysia, Salvertia). Whethe...

Vismia conduplicata, a new species of Hypericaceae from Mato Grosso state, Brazil, is described and illustrated. It is associated to "campos de murundus", a kind of Cerrado physiognomy with woody plants growing on earth mounds, in a grassland matrix. The species was included in Vismia sect. Trianthera, based on the number of stamens per stamen fasc...

Resumo O presente estudo florístico fornece chaves de identificação, descrições morfológicas, ilustrações e comentários para as espécies de Hypericaceae registradas no estado do Espírito Santo, Brasil. Foram encontradas uma espécie de Hypericum: H. brasiliense, comumente distribuída em áreas abertas das regiões Sudeste e Sul do Brasil, e seis espéc...

Resumo Nesta nota científica estão sendo apresentadas e discutidas as principais modificações que serão introduzidas no Código de Shenzhen, que deverá ser publicado em 2018, aprovadas durante a Sessão de Nomenclatura do XIX Congresso Internacional de Botânica realizado na China, em julho de 2017. Dentre as modificações mais importantes destacam-se:...

Significance Large floristic datasets that purportedly represent the diversity and composition of the Amazon tree flora are being widely used to draw conclusions about the patterns and evolution of Amazon plant diversity, but these datasets are fundamentally flawed in both their methodology and the resulting content. We have assembled a comprehensi...

This study presents the species of Vochysiaceae that occur in canga vegetation of Serra dos Carajás, in the Pará state, Brazil, including morphological descriptions, illustrations, and comments. Four species were recorded: Callisthene microphylla, Qualea multiflora, Q. parviflora and Vochysia haenkeana.

Vochysiaceae is represented in Brazil by ca. 160 species, distributed mainly the in Amazon Forest, Atlantic Forest, and Cerrado. The Diamantina Plateau is located between the north of Serra do Cipó and the south of Grão Mogol, in the Espinhaço Range central southern region. We have found 22 species of Vochysiaceae in the studied area, distributed a...

Qualea insignis , a new species of Vochysiaceae endemic to the Serra das Confusoes area, Piaui state, Brazil, is here described and illustrated. The species is placed in Qualea sect. Costatifolium , due to the number of secondary veins/cm and the inflorescence architecture. A comparison with Q. grandiflora and Q. parviflora , the other species of t...

Vochysia Aublet (1775: 18) encompasses ca. 140 species, distributed from Mexico to southern Brazil. They are mainly large trees, with spurred yellow flowers, usually 3-petaled and with a single fertile stamen (Kawasaki 2007). The genus was described by Aublet (1775) in his work on plants from French Guiana as ‘ Vochy ’, taken from a native name amo...

Portuguese version of interactive key for identification of the Vochysiaceae from Espinhaço Range, Brazil.

English version of interactive key for identification of the Vochysiaceae from Espinhaço Range, Brazil.

Documenting how diversity patterns vary at fine-and broad scales may help answer many questions in theoretical and applied ecology. However, studies tend to compare diversity patterns at the same scale and within the same taxonomic group, which limits the applicability and generality of the results. Here, we have investigated whether vegetation-dwe...

We surveyed a Cerrado and Riparian Forest vegetation area located at São Carlos Federal University (21°58’ S, 47°51’ W). The objective of the survey was to provide a full inventory of the area’s angiosperm flora. This inventory was conducted in a region in which few remnants of Cerrado and Riparian Forest are left because of the destruction of thes...

The study of the family Vochysiaceae is part of the project "Flora of Serra do Cipó, Minas Gerais, Brazil". The family is represented there by 22 species of the genera Callisthene, Qualea, Salvertia, and Vochysia, respectively with four, four, one and thirteen species. Key to the genera and species, descriptions, illustrations and comments on the g...

Vochysia microphylla is described and illustrated as a new species. It belongs to Vochysia section Ciliantha subsection Lutescentes. This new species is apparently endemic to the “campos rupestres” vegetation in Morro do Pilar and Itambé do Mato Dentro, Serra do Cipó, Minas Gerais, Brazil.

The Phanerogamic Flora of São Paulo State project has been dedicated to create an inventory of the flora for 20 years. More than 200 collaborators are involved, mostly from the State of São Paulo, with the contributions of researchers from other states and from abroad. Since 2001, seven books with monographs of 151 families were published, dealing...

Field Guide of Vochysiaceae from Serra do Cipó, Minas Gerais, Brazil