Jose Rubens Pirani

Jose Rubens Pirani
University of São Paulo | USP · Department of Botany

Full Professor (Prof Titular)

About

447
Publications
110,158
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Introduction
Brazilian Botanist. Teacher and researcher at Universidade de São Paulo since 1984, Full Professor since 2004. Member of the International Association for Plant Taxonomy (IAPT) since 1989. Herbarium Curator (SPF) from 1991 up to 2009. General research on neotropical flora mainly through floristic and phytophysiognomical studies. Plant Systematics: phylogeny, evolution, and classification of families of the Order Sapindales in the neotropics, mainly Rutaceae and Simaroubaceae.
Additional affiliations
January 1984 - present
Universidade de São Paulo

Publications

Publications (447)
Article
Full-text available
Mikania is a pantropical genus of Asteraceae with ca. 450 species distributed mainly in South America. Although most of its species occur in forested phytophysiognomies, significant richness is found in the mountaintop grasslands known as campos rupestres in Brazil. Recent botanical exploration of campos rupestres areas outside their core distribut...
Article
Full-text available
For many regions, such as in South America, it is unclear how well the existent protected areas network (PAs) covers different taxonomic groups and if there is a coverage bias of PAs towards certain biomes or species. Publicly available occurrence data along with ecological niche models might help to overcome this gap and to quantify the coverage o...
Article
Full-text available
Flowers of Meliaceae are traditionally described as bisexual, but functionally unisexual flowers have been reported for many genera. For Trichilia, several reproductive systems have been previously reported: subdioecy, gynodioecy, polygamy and hermaphroditism. The aim of this study was to analyze the occurrence of floral dimorphism and sexual-funct...
Article
Full-text available
Sapindales comprise nine families with a mainly tropical distribution and include numerous species of high economic importance. Members of this order are known for the production of chemical constituents with medicinal properties, such as antioxidant, anti-inflammatory, and antimicrobial activity, as well as species with insecticidal properties. Su...
Article
Full-text available
Floral features contribute with remarkable additions to morphological studies and are widely used to address questions about the evolution and diversification of several groups of plants. Even though Simaroubaceae are a small monophyletic family, the few detailed structural analyses of reproductive organs and the floral diversity and variations alr...
Article
Full-text available
Rutaceae is a large family, particularly variable in fruits which have traditionally been used in the delimitation of infrafamilial taxa. Within the family, tribe Galipeeae stands out due to the high diversity of fruits with an exceptional complexity of structure and development, as well as various strategies of seed and fruit dispersal. To better...
Article
Full-text available
The present study aims to improve the knowledge of Simaroubaceae in the Reserva Ducke, Manaus, Amazonas. It is based on morphological analysis of herbaria collections and field expeditions. The family is represented in that area by six species belonging to four genera: Homalolepis (1 sp.), Picrolemma (1 sp.), Simaba (3 spp., including a new one des...
Article
Full-text available
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...
Article
Sapindales is a monophyletic order within the malvid clade of rosids. It represents an interesting group to address questions on floral structure and evolution due to a wide variation in reproductive traits. This review covers a detailed overview of gynoecium features, as well as a new structural study based on Trichilia pallens (Meliaceae), to pro...
Article
Full-text available
The Rutaceae are the largest family in number of species in the order Sapindales, with 162 genera and ca. 2085 species, mainly in (sub)tropical regions. The family is well distributed in the Americas, with 51 genera and 412–415 species, most of them in the tropical America, with 48 genera (46 endemic to this region), and 350–400 species. Forty-nine...
Article
In the prevailing savanna formations of the Cerrado biome, several plants show special morphological and anatomical features, such as cork bark, a thickened underground system and bud-forming underground structure. These traits have been considered to have evolved in distinct lineages as adaptations to drought, fire, or nutrient-deficient soils. Am...
Article
A new species, Mikania mellosilvae, from Bahia and Minas Gerais States, is described and illustrated. Until now, herbarium material of this species has been misidentified, as well as in articles referring to the collections, as Mikania candolleana Gardner. The similarities and differences between the two taxa are discussed. Although both species sh...
Article
Several structural attributes associated with the buds of shoot apices of angiosperms have been related to protection both at the mechanical and chemical defense levels. Although several characteristics related to the protection of shoot buds are known in different taxa of Sapindales, their occurrence in the neotropical genus Homalolepis (Simarouba...
Article
The Rutaceae Juss. is a plant family known as a producer of bioactive compounds, comprising several species used for disease treatment in folk medicine. Among Rutaceae genera, Esenbeckia Kunth includes 28 species distributed from Mexico through Argentina and in the West Indies. Some species such as E. alata (Triana) Triana & Planch., E. febrifuga (...
Article
Conchocarpus is the largest genus in the subtribe Galipeinae, tribe Galipeeae, distributed from Nicaragua to northern Bolivia and southern Brazil, with the center of species diversity in the Brazilian Atlantic Rainforest. Five species were recently segregated to a new genus (Dryades), thereby restoring the monophyly of Conchocarpus sensu stricto. I...
Article
Full-text available
Simaroubaceae are among the families whose circumscription radically changed over time, because phylogenetic analyses undertaken since 1995 demonstrated it was a polyphyletic group in its traditional delimitation. Currently, Simaroubaceae sensu stricto are a mostly pantropical, highly supported monophyletic group composed of 22 genera and approxima...
Article
The Sapindales comprise one of the hallmark orders in the Neotropics, being an important component of forested and open formations, especially in Brazil. In recent decades, there have been many efforts made to unravel the Brazilian flora and its distribution; among them is the Brazilian Flora 2020 Project, the main goal of which was to produce upda...
Article
Full-text available
Homalolepis was described by Turczaninow in 1848 and reestablished by Devecchi et al. in 2018, enclosing mostly the extra-Amazonian species previously included in two sections of Simaba Aubl.. We performed the first cytogenetic analysis in Homalolepis and, by surveying chromosome numbers of other Simaroubaceae representatives, reconstructed the evo...
Article
Full-text available
We assembled new plastomes of 19 species of Mikania and of Ageratina fastigiata, Litothamnus nitidus, and Stevia collina, all belonging to tribe Eupatorieae (Asteraceae). We analyzed the structure and content of the assembled plastomes and used the newly generated sequences to infer phylogenetic relationships and study the effects of different data...
Article
Full-text available
ABSTRACT This synopsis presents diagnostic characters and comments on morphological variability, distribution, and conservation of species of Byttnerieae (Malvaceae, Byttnerioideae) from the Atlantic Forest. Byttnerieae is represented by species from two allied genera in this phytogeographic domain: Ayenia L. and Byttneria Loefl. An extensive liter...
Article
Full-text available
Aldama (Heliantheae, Asteraceae) is a diverse genus in the sunflower family. To date, nearly 200 Asteraceae chloroplast genomes have been sequenced, but the plastomes of Aldama remain undescribed. Plastomes in Asteraceae usually show little sequence divergence, consequently, our hypothesis is that species of Aldama will be overall conserved. In thi...
Book
Full-text available
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...
Preprint
Full-text available
Published online in Frontiers of Biogeography's "in press" section (direct link: https://escholarship.org/uc/item/9wj3r67h).
Article
Full-text available
Subtribe Galipeinae (tribe Galipeeae) is the most diverse group of Rutaceae (the orange family) in the Neotropics, with 27 genera and ca. 130 species. The largest genus in the subtribe is Conchocarpus, with ca. 50 species, distributed from Central America to southern Brazil, and is particularly diverse in the Brazilian Atlantic Forest. The circumsc...
Article
Full-text available
Resumo Apresentamos o tratamento taxonômico das espécies de Simaroubaceae ocorrentes no Espírito Santo, Brasil. Este estudo é resultado da combinação de trabalho de campo e análise de espécimes depositados em herbários que abrigam coleções relevantes do Espírito Santo. A família está representada no estado por seis espécies pertencentes a três gêne...
Article
Full-text available
Subtribe Galipeinae (tribe Galipeeae) is the most diverse group of Rutaceae (the orange family) in the Neotropics, with 27 genera and ca. 130 species. The largest genus in the subtribe is Conchocarpus, with ca. 50 species, distributed from Central America to southern Brazil, and is particularly diverse in the Brazilian Atlantic Forest. The circumsc...
Article
The unique vegetation of rupestrian grassland (Campo Rupestre) is finely tuned to the strong environmental and edaphoclimatic filters that resulted in important adaptations and high levels of endemism. In this study, we intend to give another focus to the understanding of the identity of the rupestrian grasslands by observing their floristic relati...
Article
Revisiting biogeographical patterns is the first step towards fully assessing the natural history and conservation of particular lineages, an important effort in species-rich groups from heterogeneous or undercollected areas, such as South American Malvaceae. Here, we compile, synthetize and discuss a manually revisited distribution database built...
Article
Digital accessible knowledge of biodiversity data is an increasingly important source of information in studies of biogeography and conservation. These databases can also reveal temporal, spatial and taxonomical gaps in biodiversity documentation, even in areas that have been intensively studied and from where accurate species lists are available....
Article
Full-text available
Mountains are among the most biodiverse areas on the globe. In young moun- tain ranges, exceptional plant species richness is often associated with recent and rapid radiations linked to the mountain uplift itself. In ancient mountains, however, orogeny vastly precedes the evolution of vascular plants, so species richness has been explained by speci...
Book
Full-text available
Plantas e pólen em áreas urbanas: uso no paisagismo amigável aos polinizadores Plantas e pólen em áreas urbanas: uso no paisagismo amigável aos polinizadores Astrid de Matos Peixoto Kleinert Cláudia Inês da Silva (organizadoras)
Article
Full-text available
Picramniaceae is the only member of Picramniales which is sister to the clade (Sapindales (Huerteales (Malvales, Brassicales))) in the rosidsmalvids. Not much is known about most aspects of their ecology, geography, and morphology. The family is restricted to American tropics. Picramniaceae representatives are rich in secondary metabolites; some sp...
Article
Meliaceae are a mostly pantropical family in the Sapindales, bearing flowers typically provided with a staminal tube, formed by filaments that are fused partially or totally, although several genera of subfamily Cedreloideae have free stamens, which may be adnate to an androgynophore in some taxa. The fact that the family exhibits a wide diversity...
Article
Chresta is a genus mostly endemic to Brazil that presents several rupicolous species with naturally fragmented distributions. Aiming to facilitate studies about genetic diversity and structure in these species, we developed a set of 22 nuclear and 6 plastid microsatellite markers that are transferable among different species of the genus. We used p...
Article
Full-text available
We present the hitherto most comprehensive phylogenetic hypothesis for Baccharis. Our results confirm that subtribe Baccharidinae is a monogeneric group and support a broad circumscription of Baccharis as monophyletic with the inclusion of all genera that have been previously segregated from it (Baccharidastrum, Baccharidiopsis, Heterothalamulopsis...
Book
Full text available on https://www2.ib.usp.br/index.php?option=com_docman&task=doc_view&gid=80&tmpl=component&format=raw&Itemid=98
Article
Full-text available
Molecular phylogenetic studies separated and united a group of genera that constituted the Spathelia-Ptaeroxylon clade, in which Dictyoloma and Sohnreyia have been included. Our taxonomic interest in the Dictyoloma vandellianum and Sohnreyia excelsa stimulated an investigation of both species searching for limonoids. Leaves from D. vandellianum aff...
Article
The neotropical genus Nycticalanthus Ducke (1932: 341) belongs to Rutaceae and was described by Ducke in 1932. It was based on a single species (N. speciosus Ducke [1932: 341]) with no further species described subsequently. Therefore, it still is a monotypic genus. Nycticalanthus was morphologically characterized by its shrubby to arborescent habi...
Poster
Full-text available
Poster with some preliminary results of my master thesis with biodiversity & distribution of some South American subfamilies of Malvaceae. Presented at the 70th Brazilian National Congress of Botany, Maceió.
Article
Full-text available
Amazonia is one of the most diverse biomes worldwide, and, as well as luxuriant forest, it includes mountain areas which, despite their small surface area, display fascinating endemism. In these regions, the specificity of edaphic factors is mirrored by a highly specialised, isolated flora adapted to survive adverse conditions. The Serra dos Carajá...
Article
Full-text available
Asteraceae, or the sunflower family, is the largest family of flowering plants and is usually considered difficult to work with, not only due to its size, but also because of the abundant cases of polyploidy and ancient whole-genome duplications. Traditional molecular systematics studies were often impaired by the low levels of variation found in c...
Article
Pending taxonomic problems regarding Pterygota Schott & Endl. are related to troublesome circumscription and historical-nomenclatural issues. For instance, Pterygota brasiliensis Allemão is cited as Basiloxylon brasiliensis (Allemão) K.Schum in some publications, e.g. the Catalog of Plants and Fungi of Brazil (Forzza et al. 2010) and the Checklist...
Article
Galipeinae (Rutoideae) is the most species-rich subtribe of Rutaceae in the Neotropics. The taxonomy of Galipeinae is complex as molecular phylogenies demonstrate that rearrangements of genera are necessary to reach the monophyly of the subtribe. A few detailed studies have found variability in floral features, such as different patterns of organ f...
Article
A new circumscription of Chamaecrista sect. Chamaecrista ser. Coriaceae is presented based on the results of molecular and morphological analyses. The series is monophyletic upon exclusion of three species that were included within it by Irwin and Barneby. Morphological variation within the series is discussed. Characters previously neglected, such...
Article
The stems of Pilocarpus grandiflorus have afforded the new imidazole alkaloid 4,6-dehydro1,2,4,5-tetrahydro-2,5-dioxopilocarpine in addition to the 17 known compounds germanicol, βamiryn, ocotillone, stigmast-4-en-3-one, 3β-hydroxy-stigmast-5-en-7-one, 6β-hydroxy-stigmast-4- en-3-one, β-sitosterol, scopoletin, 3-(1’,1’-dimethylallyl)-scopoletin, el...
Preprint
Journal: Journal of Biogeography Aim: The Brazilian campo rupestre is a vegetation associated to ancient mountaintops in eastern South America, spread mainly over disjunct areas of the Espinhaço Range and the Chapada dos Veadeiros. These areas hold outstanding levels of plant diversity and endemism, but despite their uniqueness they have been negle...
Article
Chresta artemisiifolia, a new species from northern Bahia, is described and illustrated. This species occurs on rock outcrops amidst the dry Caatinga domain, and is morphologically related with C. harleyi, C. hatschbachii, C. martii and C. subverti-cillata. It is endemic to a region known as Boqueirão da Onça, where a national park has recently bee...
Article
Full-text available
A new classification of the subtribe Lychnophorinae is proposed based on the results of phylogenetic analyses. The subtribes Centratherinae and Sipolisiinae are synonyms of Lychnophorinae and three genera (Albertinia, Blanchetia, Gorceixia) are transferred to the subtribe. As now circumscribed, Lychnophorinae comprises 19 genera and 117 species dis...
Article
Full-text available
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...
Article
Schinus, best known by its few cultivated and invasive species, is the largest genus of Anacardiaceae in southern South America. It is remarkably diverse compared to closely related genera, with approximately 42 species, most of which occur in several arid vegetation types and extend into Andean and Atlantic moist forests. The most comprehensive ta...
Preprint
The subtribe Galipeinae (Rutaceae) is a flowering plant group endemic to the Neotropical region, with its center of diversity in the Brazilian Atlantic Forest. Here, we aim to describe and analyze the distribution patterns of the group in Brazil, in search for possible areas of endemism. We then discuss our results to contribute to the debate on th...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
Two new rupicolous and endangered species from the Caatinga are described and illustrated. Chresta heteropappa is restricted to the brejos de altitude (montane forests) from Northeastern Ceará, growing on granite inselbergs. Chresta subverticillata occurs in Northern Bahia, inhabiting quartzitic outcrops on the Chapada Diamantina mountain range. Re...
Article
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...
Article
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...
Article
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...
Article
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...
Article
Full-text available
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...