Alice Calvente

Federal University of Rio Grande do Norte | IIP · Departamento de Botânica e Zoologia

Premise: Cacti are characteristic elements of the Neotropical flora and of major interest for biogeographic, evolutionary, and ecological studies. Here we test global biogeographic boundaries for Neotropical Cactaceae using specimen-based occurrences coupled with data from visual observations, as a means to tackle the known collection biases in th...

Premise: Cacti are characteristic elements of the Neotropical flora and of major interest for biogeographic, evolutionary, and ecological studies. Here we test global biogeographic boundaries for Neotropical Cactaceae using specimen-based occurrences coupled with data from visual observations, including citizen science records, as a means to tackle...

https://fieldguides.fieldmuseum.org/pt-br/guias/guia/1440

RESUMO Praças públicas são áreas verdes urbanas que promovem a valorização da natureza, oferecendo oportunidades de lazer, interação com a comunidade e hábitos saudáveis. A vegetação em praças públicas promove sombreamento e influencia a estética dos espaços públicos atuando na saúde mental e física da população. Pode apresentar elementos seleciona...

The Central Mountain Region of Espírito Santo state is located in the Atlantic Forest domain in eastern Brazil, which is the third largest center of diversity and endemism for Cactaceae. The state has 42 native species and 13 genera of this family. The aim of this study was to conduct a floristic-taxonomic study of Cactaceae in the Central Mountain...

Cereinae comprises 14 genera distributed in Neotropical dry forest formations such as in the Caatingas of northeastern Brazil or in rocky outcrops in the north of southeastern Brazil. Historically, the taxonomy of the group has been very controversial, especially regarding generic circumscriptions, and phylogenetic relationships within the group ar...

In this paper we present an overview of the abstracts, scientific and social programs, field trips, and achievements in terms of participant number, represented countries, sponsorships, and themes treated during the Sixth International Conference on the Comparative Biology of Monocotyledons that took place in Natal, Brazil, October 7 th-12 th 2018....

Plant blindness" is affecting humans' relationships with plants, which has negative consequences for both science and conservation. It is, therefore, important to find new ways to promote societal interest in botany and plants. One possibility is encouraging the use of informal settings to promote curiosity and provide education to students. Forest...

This work presents the species of Cactaceae occurring in the state of Rio de Janeiro, distributed in “restingas” and the Atlantic forest. 13 genera, 50 species and 8 subspecies are described and illustrated. The genus Rhipsalis is the most diverse in number of species and distributed in most regions of the state. Identification keys, descriptions,...

Species occurrence records provide the basis for many biodiversity studies. They derive from georeferenced specimens deposited in natural history collections and visual observations, such as those obtained through various mobile applications. Given the rapid increase in availability of such data, the control of quality and accuracy constitutes a pa...

The aim of this paper was to investigate the phylogenetic relationships within Pilosocereus (Cactaceae, Cactoideae), one of the most emblematic genera of cacti of the Neotropical dry woodlands. The genus includes 42 species and eight subspecies placed in two subgenera: Pilosocereus subg. Pilosocereus and Pilosocereus subg. Gounellea. We used an exp...

After a revision of the genus Araeococcus Brong. two distinct morpho-biogeographical groups, also supported by anatomical characters, became evident and contradictory. Thus, here we elevate a subgenus to the generic level and propose the new Pseudareococcus to accommodate species bearing a unique combination of vegetative, reproductive and biogeogr...

Urgent strategies for the conservation of the Neotropical flora are needed in the face of accelerated habitat loss and a severe biodiversity crisis. To assess the conservation status and to propose protection programs for taxa under potential risk, such as the Cactaceae, a group strongly affected by disturbances and habitat loss, detailed data desc...

Species occurrence records provide the basis for many biodiversity studies. They derive from geo-referenced specimens deposited in natural history collections and visual observations, such as those obtained through various mobile applications. Given the rapid increase in availability of such data, the control of quality and accuracy constitutes a p...

Local, polemic, floristic, personal, independent, artistic, lacking any respect for traditional styles of scientific journals, or their metrics, questioning why reviewers and editors are not paid by publishers that charge for subscriptions of their journals, in this paper we propose a local journal called PlantNow, that will act locally, enhancing...

Flowers of Cactaceae have a peculiar structure. As in all Angiosperms, their flowers are modified shoots, but in this family the shoot is more complex: it is externally covered by stem tissue. The cactus flowers show a wide variety of forms, sizes and structural characters related to the evolutionary history of their lineages. This richness in morp...

Cactaceae are a highly endangered plant family with economical and ornamental potential. One of its centers of diversity and endemism is in Eastern Brazil, including the Atlantic Forest in the state of Espírito Santo. The latest Brazilian global floristic inventory recorded 41 cactus species for this state, however an exclusive study about Cactacea...

A National Forest Inventory (NFI) encompassing the entire territory of Brazil is in progress. It is coordinated and promoted by the Brazilian Forest Service of the Ministry of Environment. In each state, the NFI collaborates with local herbaria by receiving collected plant material and performing species identification. Consultants are hired by the...

This work presents an updated checklist of the Bignoniaceae from the Brazilian state of Rio Grande do Norte (RN), and information on the patterns of geographic distribution of individual species within two RN biomes. Forty-three native species distributed in 18 Bignoniaceae genera were recorded for RN. The species richness found for RN in this stud...

Pilosocereus is a large genus of Cactaceae with 42 species of columnar cacti distributed in the Americas. In this work we investigate the phylogenetics and evolutionary history of Pilosocereus based in plastid and nuclear DNA sequences. We use phylogenetic trees obtained as a basis to analyse infrageneric relationships and to study the evolution of...

Pilosocereus oligolepis is a species of Cactaceae that is known only from three old type collections in Brazil (Roraima state) and Guyana. It is the only species of this genus to occur in northern Brazil. Due to the paucity of specimens and lack of precise locality data we undertook fieldwork in different vegeta- tion types of Roraima aiming to fin...

This paper records the first occurrence of Aechmea muricata (Bromeliaceae, Bromelioideae) in the state of Rio Grande do Norte, northeastern Brazil. The taxon was found inside the Mata Estrela Private Reserve, Baía Formosa municipality, southern Rio Grande do Norte. This finding is important to increase the data about the Flora of Rio Grande do Nort...

Este trabalho apresenta o estudo taxonômico de Cactaceae no estado do Paraná. A metodologia inclui a análise de coleções de herbário e realização de coletas em todos os biomas do estado. Doze gêneros e 26 espécies nativas foram inventariados para o estado. Os gêneros mais ricos são Rhipsalis, representado por 11 espécies, Lepismium (4) e Schlumberg...

A taxonomic survey of the Cactaceae from Paraná state, Brazil, is presented here. Methodology includes an analysis of herbarium specimens and fieldwork in all biomes in the state. Twelve genera and 26 native species were catalogued for Paraná. The richest genera are Rhipsalis, with 11 species, Lepismium (4), and Schlumbergera (2). The other genera...

The goal of the present study was the anatomical analysis of the species belonging to the subgenus Erythrorhipsalis aiming to identify diagnostic features and potential synapomorphies. Six out of the nine species were collected and processed for anatomical study. The species have uniseriate or multisseriate epidermis; parallelocytic stomata; collen...

In this paper we describe the first occurrences of the genus Cryptanthus in the state of Rio Grande do Norte (RN), establishing a new northern distribution limit for the genus. Additionally, we report the finding of three forms of C. zonatus growing in sympatry within two different localities in Rio Grande do Norte along with the phenotypic variati...

Most Cactaceae have succulent stems and inhabit dry or arid areas, but some are epiphytes of humid regions. Rhipsalis is the largest genus of epiphytic cacti. Species of Rhipsalis are notoriously difficult to identify, and the subgeneric classification of the genus has remained controversial. Between 1837 and 1995, eight different subgeneric classi...

The genus Alcantarea comprises near 30 species endemic to rocky outcrops from eastern Brazil. Most species are ornamental and several are threatened due to habitat loss and over collection. In this paper we examine the phylogenetics of Alcantarea and its relationship with the Brazilian members of Vriesea, a genus of which Alcantarea has been treate...

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Tribe Rhipsalideae is composed of unusual epiphytic or lithophytic cacti that inhabit humid tropical and subtropical forests. Members of this tribe present a reduced vegetative body, a specialized adventitious root system, usually spineless areoles and flowers and fruits reduced in size. Despite the debate surrounding the classification of Rhipsali...

O PAN Cactáceas tem como objetivo promover a conservação efetiva e a redução de risco de extinção de espécies de cactáceas no Brasil. Ele abrange 28 espécies ameaçadas de extinção, bem como estabelece estratégias para proteção de outras consideradas em risco. O Plano é composto por três metas, com as suas respectivas ações, cuja previsão de impleme...

Leaves comprise most of the vegetative body of tank bromeliads and are usually subjected to strong longitudinal gradients. For instance, while the leaf base is in contact with the water accumulated in the tank, the more light-exposed middle and upper leaf sections have no direct access to this water reservoir. Therefore, the present study attempted...

A new species of Rhipsalis (Cactaceae) from Rio de Janeiro State, in southwestern Brazil, is described and illustrated. The new Rhipsalis aurea is circumscribed in the subgenus Erythrorhipsalis and is morphologically most similar to R. pulchra Loefgr., but is distinct by the smaller, sub-erect habit, smaller secondary stem segments of determinate g...

Several species of the genus Rhipsalis (Cactaceae) are extremely important as ornamentals and are endangered in their natural habitat. However, only a few studies have addressed its taxonomy, morphology (including anatomy), phylogeny and evolutionary history. Consequently, the limited knowledge of the genus coupled with the problematic delimitation...

This paper contains the floristic inventory for the Cactaceae occurring in the Natural Municipal Park of Prainha, located at 23°02' 41''S 43°30' 40''W, in the Rio de Janeiro Municipality, Rio de Janeiro State, Brazil. The area is a threatened native Atlantic Forest remnant with no floristic inventory. Ten Cactaceae genera occur in the Park, which a...

RESUMO Este trabalho apresenta a listagem, distribuição geográfica e estado de conservação das espécies de Cactaceae no estado do Rio de Janeiro. Foram utilizadas como referência as coleções dos principais herbários do estado e a literatura especializada. Os resultados apontam a ocorrência de 45 espécies subordinadas a 13 gêneros. Dez espécies fora...

(Checklist, geografic distribution and conservation of the Cactaceae species of Rio de Janeiro State, Brazil) This work presents the Cactaceae checklist with geographical distribution and conservation status for the Rio de Janeiro State. The collections of the main herbaria in the State and the related bibliographywere used assource of data. The re...