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 plant species list for this protected area from the "Catálogo de Plantas das Unidades de Conservação do Brasil" as the basis to synthesise the species richness, endemism, conservation and new species occurrences found in the "Flona do Rio Preto". The published list of vascular plants was based on field expeditions conducted between 2018 and 2020 and data obtained from herbarium collections available in online databases. Overall, 722 species were documented for the "Flona do Rio Preto", 711 of which are native to Brazil and 349 are endemic to the Atlantic Forest. In addition, 60 species are geographically disjunct between the Atlantic and the Amazon Forests. Most of the documented species are woody and more than 50% of these are trees. Twenty-three species are threatened (CR, EN and VU), while five are Data Deficient (DD). Thirty-two species are new records for the State of Espírito Santo. Our results expand the knowledge of the flora of the Atlantic Forest and provide support for the development of new conservation policies for this protected area.
Sapotaceae is historically known as having a tricky and challenging taxonomy due to tangled morphologic heterogeneity. Consequently, this resulted in a large number of described genera and binomials. After Pennington’s Flora Neotropica work, several of those nomenclature issues were resolved. Nevertheless, many binomials remain unsolved and up for typification. Thus, following the International Code of Nomenclature for Algae, Fungi and Plants, we propose 74 new lectotype designations, four of these are second-step typifications.
Based on recent collections and fieldwork efforts, we provide an updated list of Sapotaceae of Espírito Santo state, Brazil and, in addition, we present the expanded geographical distribution of Manilkara multifida T.D. Penn. and Pouteria atlantica Alves‐Araújo & M.Alves, two endangered tree species from Atlantic forest with a poorly known biology. They are new records for Espírito Santo state‐Brazil and southeastern Brazil. We also emend the species original description by providing descriptions and images of the fruits and seeds for both species, as well as maps of the current geographical distributions, color photographs, and taxonomic comments.
Although extrafloral nectaries (EFNs) are reported as extremely important to understand ecological interactions, the diversity of EFN-bearing plants remains underappreciated. In Brazil, studies are concentrated in Cerrado and extremely poorly known in other phytogeographic domains, such as Atlantic forest. Thus, this study provides one of the first checklists of angiosperms with EFNs in a protected area of the Brazilian Atlantic forest, bringing information about the richness, location of EFNs on the plant's organs, as well as plant's habit and conservation status. A total of 93 EFN-bearing species belonging to 61 genera and 29 families is reported, which corresponds to 16.5 % of the local flora. The vast majority has not been evaluated for their conservation status, and twenty species are endemic to the Brazilian Atlantic forest. Vines and trees are the predominant plant habits and EFNs are mostly found on leaves. More than half of the species (53.7 %) comprises new additions to the world list of EFN-bearing plants, including the first record in Dilleniaceae. Our findings show a large number of EFN-bearing plant species from a single and small protected area in the Brazilian Atlantic forest. It reinforces the lack of studies of this nature, where further investigations are strongly recommended.
Macrophytes are plant organisms that live partially or totally submerged in water, being fixed and free. The Doce River is one of the main rivers in southeastern Brazil and, in 2015, it was hit by ore tailings from the Fundão dam burst in Mariana, Minas Gerais. This work aims to provide a floristic survey of macrophytes in the lower Doce River basin and to compare the species composition between lentic and lotic environments. Expeditions were carried out monthly from October 2018 to September 2019, in five stations in lotic and six in lentic environments. A total of 105 species belonging to 33 families of vascular plants were recorded, among them 14 are new occurrences for Espírito Santo state. Richest families were Poaceae (23 spp.) and Cyperaceae (22 spp.). Amphibious/emerging plants were the most representative (46 spp.). NMDS analysis revealed that the composition of the lotic and lentic environments are different.
The present work, which is part of a series of taxonomic monographs, aims to provide useful taxonomic features for distinguishing species of Cactaceae from Itaúnas State Park-Brazil. After performing field expeditions and observations, and analysis of herbaria vouchers, a total of five species of Cactaceae is herein recorded: Brasiliopuntia brasiliensis (Least Concern), Cereus fernambucensis subsp. fernambucensis (Least Concern), Melocactus violaceus subsp. violaceus (Vulnerable), Pereskia aculeata (Least Concern), and Pilosocereus arrabidae (Near Threatened). Leaf (when present) and cladodes morphology, and presence or absence of cephalium are the most useful characters to specific delimitation. Key identification, descriptions, photographs, taxonomic comments, geographic distribution and habitat data are herein provided.
Two new occurrences of Aristolochia in Brazil are reported here. Aristolochia cremersii, hitherto known from French Guiana, was collected in Oriximiná/Pará, and A. argentina, with previously known distribution in Argentina, Bolivia and Paraguay, was recorded in Bodoquena/Mato Grosso do Sul. The latter species was identified based on photographic records. We provide descriptions, morphological comments, a preliminary extinction risk assessment (with one of them applying the rapid Least Concern method) and illustration/images of the 2 species, and finally discuss the use of photographs as valuable scientific records.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
334 Leonard St
Brooklyn, NY 11211
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.