Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273047
Patrick de Oliveira, C. R. Benevides, Alexandre Verçosa Greco, Luciene Campos São Leão, A. T. A. Rodarte, H. A. Lima
Abstract Fruits have a wide variety of morphological and phenological characteristics that have been related to environmental conditions and seed dispersal mode. In this paper, we describe the fruit morphology, the fruiting phenology and infer dispersal patterns of 52 species from restinga of Maricá, Rio de Janeiro, in order to understand the richness and temporal variation of these resources in the community. Fleshy, indehiscent, and colored fruits, typical of zoochory, predominate in the restinga (77.8%). Anemochoric fruits represent 13.3%. In 42% of zoochoric species, fruits go through three to five colors until maturity, and different stages of ripeness can be observed on the same plant. A constant supply of zoochoric and anemochoric fruits was observed throughout the year. Unlike flowering, there were no significant correlations between fruiting activity and intensity and abiotic factors. For the community studied, the fruiting pattern observed also contrasts with flowering, due to the lower seasonality, and intensity suggesting that biotic factors, such as seed dispersers (in the case of zoochoric fruits) may have relevance in determining fruit ripening and seed dispersal periods in coastal environments.
{"title":"Fruiting phenology and dispersal syndromes in a sandy coastal plain in southeastern Brazil","authors":"Patrick de Oliveira, C. R. Benevides, Alexandre Verçosa Greco, Luciene Campos São Leão, A. T. A. Rodarte, H. A. Lima","doi":"10.1590/2175-7860202273047","DOIUrl":"https://doi.org/10.1590/2175-7860202273047","url":null,"abstract":"Abstract Fruits have a wide variety of morphological and phenological characteristics that have been related to environmental conditions and seed dispersal mode. In this paper, we describe the fruit morphology, the fruiting phenology and infer dispersal patterns of 52 species from restinga of Maricá, Rio de Janeiro, in order to understand the richness and temporal variation of these resources in the community. Fleshy, indehiscent, and colored fruits, typical of zoochory, predominate in the restinga (77.8%). Anemochoric fruits represent 13.3%. In 42% of zoochoric species, fruits go through three to five colors until maturity, and different stages of ripeness can be observed on the same plant. A constant supply of zoochoric and anemochoric fruits was observed throughout the year. Unlike flowering, there were no significant correlations between fruiting activity and intensity and abiotic factors. For the community studied, the fruiting pattern observed also contrasts with flowering, due to the lower seasonality, and intensity suggesting that biotic factors, such as seed dispersers (in the case of zoochoric fruits) may have relevance in determining fruit ripening and seed dispersal periods in coastal environments.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67283530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273067
D. E. F. Barbosa, Geicilaine Alves Basilio, Helvécio Rodrigues Pereira Filho, S. G. Furtado, Luiz Menini Neto
Abstract Studies conducted on vascular epiphytes in Minas Gerais have revealed high richness in the seasonal semi-deciduous forests (SSF) in comparison with those of other Brazilian states. This study aimed to present a vascular epiphyte checklist of the Serra do Relógio (SR) in the Atlantic Forest of Minas Gerais, in order to analyze the similarity between two areas in different altitudes, as well as to discuss the high richness recorded for this synusia in the SSFs of this state. The survey was performed in two conservation units (CUs) apart from each other approximately 6 km and with elevations varying between ~500 and 1,434 m. The data were obtained from published articles and fieldwork performed between the years 2016 and 2019. We recorded 158 species distributed in 76 genera and 22 families. This richness is greater than those found in some ombrophilous forests, which was an unexpected result due to the high moisture of this phytophysionomy. Although approximately 66% of the species found in the SR are anemochoric and the compared CUs are geographically close, the similarity was only 22%, suggesting that the difference in altitude between the areas and the history of use can impose filters that influence the floristic composition of each one area. These results highlight the importance of preserving the forest remnants in Brazil and creating and maintain CUs to protect them.
摘要对米纳斯吉拉斯州维管附生植物的研究表明，与巴西其他州相比，米纳斯吉拉斯州的季节性半落叶林(SSF)丰富度较高。本研究旨在提出米纳斯吉拉斯州大西洋森林中Serra do Relógio (SR)的维管附生植物清单，以分析两个不同海拔地区的相似性，并讨论在该州的SSFs中记录的这种联系物的高丰富度。调查在两个保护区(cu)进行，彼此相距约6公里，海拔在~500至1,434米之间。数据来自2016年至2019年期间发表的文章和实地调查。共记录到22科76属158种。这种丰富度比在一些无亲缘林中发现的要大，这是由于这种植物生理的高水分而意想不到的结果。虽然在SR中发现的物种中约有66%是风性的，并且比较的库在地理上接近，但相似性仅为22%，这表明地区之间的海拔差异和使用历史可以施加过滤器，影响每个地区的植物区系组成。这些结果突出了保护巴西森林遗迹以及创建和维护森林保护区以保护它们的重要性。
{"title":"Vascular epiphytes of the Serra do Relógio: the surprising richness of the seasonal forests in the mountains of Minas Gerais, Southeastern Brazil","authors":"D. E. F. Barbosa, Geicilaine Alves Basilio, Helvécio Rodrigues Pereira Filho, S. G. Furtado, Luiz Menini Neto","doi":"10.1590/2175-7860202273067","DOIUrl":"https://doi.org/10.1590/2175-7860202273067","url":null,"abstract":"Abstract Studies conducted on vascular epiphytes in Minas Gerais have revealed high richness in the seasonal semi-deciduous forests (SSF) in comparison with those of other Brazilian states. This study aimed to present a vascular epiphyte checklist of the Serra do Relógio (SR) in the Atlantic Forest of Minas Gerais, in order to analyze the similarity between two areas in different altitudes, as well as to discuss the high richness recorded for this synusia in the SSFs of this state. The survey was performed in two conservation units (CUs) apart from each other approximately 6 km and with elevations varying between ~500 and 1,434 m. The data were obtained from published articles and fieldwork performed between the years 2016 and 2019. We recorded 158 species distributed in 76 genera and 22 families. This richness is greater than those found in some ombrophilous forests, which was an unexpected result due to the high moisture of this phytophysionomy. Although approximately 66% of the species found in the SR are anemochoric and the compared CUs are geographically close, the similarity was only 22%, suggesting that the difference in altitude between the areas and the history of use can impose filters that influence the floristic composition of each one area. These results highlight the importance of preserving the forest remnants in Brazil and creating and maintain CUs to protect them.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67283685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273040
Priscila Silva Miranda, T. S. Oliveira, E. Luz, M. Santos, J. Bezerra
Abstract The Ascomycota population in the litter of Inga edulis and Lafoensia pacari trees was identified and its richness was evaluated. The collections were carried out from October 2018 to July 2019. Twenty fallen leaves were collected in different stages of decomposition. The leaf samples were carefully washed in running water and incubated in humid chambers. The fungal structures were mounted in PVLG resin and observed under a light microscope. The identification was done by consulting the specific literature. Distribution studies included richness, frequency, constancy, and similarity of the fungal populations. The total richness was 48 species and 36 genera corresponding to 58.33% in I. edulis and 60.41% in L. pacari. Most taxa had sporadic frequency and accidental constancy. There was low similarity between plant species. Ascomycota populations are well represented in Inga edulis and Lafoensia pacari litter. Richness, frequency, constancy, and similarity of these populations varied little in function of the collection date, climate and host plant. Lower richness observed in the second collection may reflect the effect of reduced humidity observed in that time of the year.
{"title":"Ascomycota in the litter of Inga edulis and Lafoensia pacari in an Atlantic Forest remnant in southeastern Bahia state, Brazil","authors":"Priscila Silva Miranda, T. S. Oliveira, E. Luz, M. Santos, J. Bezerra","doi":"10.1590/2175-7860202273040","DOIUrl":"https://doi.org/10.1590/2175-7860202273040","url":null,"abstract":"Abstract The Ascomycota population in the litter of Inga edulis and Lafoensia pacari trees was identified and its richness was evaluated. The collections were carried out from October 2018 to July 2019. Twenty fallen leaves were collected in different stages of decomposition. The leaf samples were carefully washed in running water and incubated in humid chambers. The fungal structures were mounted in PVLG resin and observed under a light microscope. The identification was done by consulting the specific literature. Distribution studies included richness, frequency, constancy, and similarity of the fungal populations. The total richness was 48 species and 36 genera corresponding to 58.33% in I. edulis and 60.41% in L. pacari. Most taxa had sporadic frequency and accidental constancy. There was low similarity between plant species. Ascomycota populations are well represented in Inga edulis and Lafoensia pacari litter. Richness, frequency, constancy, and similarity of these populations varied little in function of the collection date, climate and host plant. Lower richness observed in the second collection may reflect the effect of reduced humidity observed in that time of the year.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67283750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273042
Jaíne Maria Silva Parentes, L. Cavalcanti
Abstract Hemitrichia leiocarpa was collected in the state of Pernambuco, northeastern Brazil, in 1968, and five decades passed before its second collection in the country. The species was rediscovered in the Pedra Talhada Biological Reserve, municipality of Quebrangulo, state of Alagoas, 225 km from the first location. A description of specimens that sporulated in moist chamber culture prepared with ground litter and deposited in the Myxomycetes collection of the UFP Herbarium is provided. Detailed and updated information on the worldwide geographical distribution of the species is provided, as well as information on substrates and microhabitats based on bibliographic sources and herbarium catalogues. The species can be considered near threatened (NT) based on IUCN criteria and its inclusion in the Brazilian Red List of Threatened Species is recommended.
{"title":"Rediscovery of Hemitrichia leiocarpa (Trichiales, Myxomycetes) in Brazil","authors":"Jaíne Maria Silva Parentes, L. Cavalcanti","doi":"10.1590/2175-7860202273042","DOIUrl":"https://doi.org/10.1590/2175-7860202273042","url":null,"abstract":"Abstract Hemitrichia leiocarpa was collected in the state of Pernambuco, northeastern Brazil, in 1968, and five decades passed before its second collection in the country. The species was rediscovered in the Pedra Talhada Biological Reserve, municipality of Quebrangulo, state of Alagoas, 225 km from the first location. A description of specimens that sporulated in moist chamber culture prepared with ground litter and deposited in the Myxomycetes collection of the UFP Herbarium is provided. Detailed and updated information on the worldwide geographical distribution of the species is provided, as well as information on substrates and microhabitats based on bibliographic sources and herbarium catalogues. The species can be considered near threatened (NT) based on IUCN criteria and its inclusion in the Brazilian Red List of Threatened Species is recommended.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67283833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273086
L. C. Reis, V. M. B. Freitas, S. P. Q. Scalon, A. Foresti, D. Dresch, C. C. Santos
Abstract This study aimed to evaluate the potential of shading in reducing the stressful effect of water restriction on photosynthetic and antioxidant metabolism, favoring the growth of Ormosia arborea seedlings and the recovery metabolic. The shadings levels studied were: 0, 30 and 70%. Two water regimes were implemented: control, in which the plants were irrigated at 75% of soil water retention capacity and water restriction, in which the irrigation was suspended until the photosynthetic rate reached values close to zero (P0), period at which the seedlings were re-irrigated. There were two evaluation periods: P0 and recovery. We observed that water restriction reduced photosynthetic metabolism, growth and quality of O. arborea seedlings by increasing the activity of antioxidant enzymes. The seedlings present higher quality index, stomatal conductance, intrinsic carboxylation efficiency and transpiration when cultivated under 70% shading in recovery. The stressful effect of water restriction was mitigated by the shading of 70%, where the seedlings were able to recover, resuming their photosynthetic metabolism and quality after resumption of irrigation. In addition, 0% shading is not indicated for this species.
{"title":"Does shading mitigate water restriction in Ormosia arborea seedlings?","authors":"L. C. Reis, V. M. B. Freitas, S. P. Q. Scalon, A. Foresti, D. Dresch, C. C. Santos","doi":"10.1590/2175-7860202273086","DOIUrl":"https://doi.org/10.1590/2175-7860202273086","url":null,"abstract":"Abstract This study aimed to evaluate the potential of shading in reducing the stressful effect of water restriction on photosynthetic and antioxidant metabolism, favoring the growth of Ormosia arborea seedlings and the recovery metabolic. The shadings levels studied were: 0, 30 and 70%. Two water regimes were implemented: control, in which the plants were irrigated at 75% of soil water retention capacity and water restriction, in which the irrigation was suspended until the photosynthetic rate reached values close to zero (P0), period at which the seedlings were re-irrigated. There were two evaluation periods: P0 and recovery. We observed that water restriction reduced photosynthetic metabolism, growth and quality of O. arborea seedlings by increasing the activity of antioxidant enzymes. The seedlings present higher quality index, stomatal conductance, intrinsic carboxylation efficiency and transpiration when cultivated under 70% shading in recovery. The stressful effect of water restriction was mitigated by the shading of 70%, where the seedlings were able to recover, resuming their photosynthetic metabolism and quality after resumption of irrigation. In addition, 0% shading is not indicated for this species.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67284226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273102
P. Silva, A. Costa, Adinan Alves da Silva, Carlos Ribeiro Rodrigues, Leandro Carlos
Abstract Phosphorus (P) is one of the nutrients most required by plants, especially in the initial phase, however, there are species whose growth effects promoted by phosphorus are still unknown. Therefore, this study aimed to test whether increasing levels of phosphorus influence the physiological and morphological behavior and the quality of seedlings of Guazuma ulmifolia. For that purpose, the seedlings were grown in a substrate produced only with Dystrophic RED LATOSOL (Oxisol) under a completely randomized design and subjected to five levels of phosphorus (0, 100, 200, 300, and 400 mg dm-3 ). At 120 days, the biometric and physiological evaluations were performed, and the chlorophyll indices, biomass, allometric relationships, Dickson Quality Index, and the phosphorus content were determined. The data were subjected to analysis of variance by the F-test and subsequently to regression analysis and Pearson’s linear correlation. Phosphorus fertilization promoted significant gains (p ? 0.05) for all variables morphological e physiological, except for the specific leaf area and allometric relationships. The phosphorus content was positively correlated with all tested variables. Based on the results obtained, it is concluded that the seedlings responded positively to phosphorus fertilization. Furthermore, phosphorus fertilization promoted better physiological and morphological performance and higher seedling quality.
{"title":"Physiological and morphological responses of seedlings of Guazuma ulmifolia (Malvaceae) grown under phosphorus levels","authors":"P. Silva, A. Costa, Adinan Alves da Silva, Carlos Ribeiro Rodrigues, Leandro Carlos","doi":"10.1590/2175-7860202273102","DOIUrl":"https://doi.org/10.1590/2175-7860202273102","url":null,"abstract":"Abstract Phosphorus (P) is one of the nutrients most required by plants, especially in the initial phase, however, there are species whose growth effects promoted by phosphorus are still unknown. Therefore, this study aimed to test whether increasing levels of phosphorus influence the physiological and morphological behavior and the quality of seedlings of Guazuma ulmifolia. For that purpose, the seedlings were grown in a substrate produced only with Dystrophic RED LATOSOL (Oxisol) under a completely randomized design and subjected to five levels of phosphorus (0, 100, 200, 300, and 400 mg dm-3 ). At 120 days, the biometric and physiological evaluations were performed, and the chlorophyll indices, biomass, allometric relationships, Dickson Quality Index, and the phosphorus content were determined. The data were subjected to analysis of variance by the F-test and subsequently to regression analysis and Pearson’s linear correlation. Phosphorus fertilization promoted significant gains (p ? 0.05) for all variables morphological e physiological, except for the specific leaf area and allometric relationships. The phosphorus content was positively correlated with all tested variables. Based on the results obtained, it is concluded that the seedlings responded positively to phosphorus fertilization. Furthermore, phosphorus fertilization promoted better physiological and morphological performance and higher seedling quality.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67284694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273104
G. O. Almeida, Carlos Leandro Costa Silva, João André Ximenes Mota, M. Rodal, Wanessa Nepomuceno Ferreira, Maria Amanda Menezes Silva
Abstract We tested the hypothesis that of the species studied in the Brazilian Semiarid, the ones most functionally similar to tree Azadirachta indicawould be more affected by this exotic species during germination and early development. At first, we produced a crude extract of A. indica fresh leaves in six different dilutions. We placed 25 seeds of four native species ( Cenostigma pyramidale, Libidibia ferrea, Mimosa caesalpiniifolia, and Amburana cearensis) to germinate in Petri dishes for each dilution, with four replicates for each species. We assessed: radicle length, emergence percentage, emergence speed index, and mean emergence time. We conducted an experiment in a greenhouse to assess how the exotic plant affected the development of individual plants of the studied species. We planted five seeds of each native species alone and five in interaction with the exotic species using ten 20-l buckets. The experiment lasted four months, and the functional attributes of the individuals were collected. Among the native species analyzed, according to the cluster analysis using the functional attributes of the species planted alone, M. caesalpiniifolia, C. pyramidaleand L. ferreawere functionally more similar to the exotic species. In the germination experiment, the extract affected only root length, regardless of the functional similarity. We noticed that only M. caesalpiniifoliahad its early development strongly inhibited when planted in interaction with the exotic species. Although the functional similarity between the exotic and the native species did not influence germination, it negatively affected the development.
{"title":"Do native plant species functionally similar to invasive species suffer more impacts from the invasion in seasonally dry tropical forests?","authors":"G. O. Almeida, Carlos Leandro Costa Silva, João André Ximenes Mota, M. Rodal, Wanessa Nepomuceno Ferreira, Maria Amanda Menezes Silva","doi":"10.1590/2175-7860202273104","DOIUrl":"https://doi.org/10.1590/2175-7860202273104","url":null,"abstract":"Abstract We tested the hypothesis that of the species studied in the Brazilian Semiarid, the ones most functionally similar to tree Azadirachta indicawould be more affected by this exotic species during germination and early development. At first, we produced a crude extract of A. indica fresh leaves in six different dilutions. We placed 25 seeds of four native species ( Cenostigma pyramidale, Libidibia ferrea, Mimosa caesalpiniifolia, and Amburana cearensis) to germinate in Petri dishes for each dilution, with four replicates for each species. We assessed: radicle length, emergence percentage, emergence speed index, and mean emergence time. We conducted an experiment in a greenhouse to assess how the exotic plant affected the development of individual plants of the studied species. We planted five seeds of each native species alone and five in interaction with the exotic species using ten 20-l buckets. The experiment lasted four months, and the functional attributes of the individuals were collected. Among the native species analyzed, according to the cluster analysis using the functional attributes of the species planted alone, M. caesalpiniifolia, C. pyramidaleand L. ferreawere functionally more similar to the exotic species. In the germination experiment, the extract affected only root length, regardless of the functional similarity. We noticed that only M. caesalpiniifoliahad its early development strongly inhibited when planted in interaction with the exotic species. Although the functional similarity between the exotic and the native species did not influence germination, it negatively affected the development.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67284714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273106
E. Urtubey
Abstract As part of studies on South American Hieracium subg. Chionoracium, sect. Piloselliformia (Asteraceae: Cichorieae) in the present work are proposed four lectotypifications, one neotypification, and comments regarding previous nomenclatural decisions within the group.
{"title":"Lectotypifications, neotypification, and nomenclatural observations for species of Hieracium subg. Chionoracium sect. Piloselliformia (Asteraceae: Cichorieae)","authors":"E. Urtubey","doi":"10.1590/2175-7860202273106","DOIUrl":"https://doi.org/10.1590/2175-7860202273106","url":null,"abstract":"Abstract As part of studies on South American Hieracium subg. Chionoracium, sect. Piloselliformia (Asteraceae: Cichorieae) in the present work are proposed four lectotypifications, one neotypification, and comments regarding previous nomenclatural decisions within the group.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67284824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273108
Miguel da Silva Santos, D. Endres Júnior, A. Droste
Abstract Pleroma asperius is a shrubby Melastomataceae endemic to southern Brazil and threatened with extinction in the Rio Grande do Sul (RS) state. Aiming to better understand the distribution of the species in different environments in RS and contribute to its conservation, a literature review, searches on online platforms and field expeditions were carried out. From 270 records obtained, ninety-one presented location data and were treated as distinct occurrence points, six of them located in Conservation Units (CUs). Maps for P. asperius occurrence (82 non-overlapping points) were constructed, with layers referring to relief, biomes with phytogeographic regions, and hydrographic basins. Most points are below 50 m.a.s.l. in altitude (86.8%). The Pampa biome and Pioneer Formations have the highest percentages of occurrence points (74.4 and 71.9%, respectively). The interpolation of the occurrence points with environmental data characterized the preferential distribution of P. asperius in low-altitude areas, especially in wetlands and in the Pioneer Formations. These environments undergo intense changes by anthropic interventions. We draw attention to the low number of occurrence points in UCs. We still recommend to review the conservation status of P. asperius, include it for recomposing vegetation in degraded areas and create more CUs in the Pampa biome.
{"title":"Distribution of Pleroma asperius (Melastomataceae) in Rio Grande do Sul, Brazil: spatial analysis for conservation strategie","authors":"Miguel da Silva Santos, D. Endres Júnior, A. Droste","doi":"10.1590/2175-7860202273108","DOIUrl":"https://doi.org/10.1590/2175-7860202273108","url":null,"abstract":"Abstract Pleroma asperius is a shrubby Melastomataceae endemic to southern Brazil and threatened with extinction in the Rio Grande do Sul (RS) state. Aiming to better understand the distribution of the species in different environments in RS and contribute to its conservation, a literature review, searches on online platforms and field expeditions were carried out. From 270 records obtained, ninety-one presented location data and were treated as distinct occurrence points, six of them located in Conservation Units (CUs). Maps for P. asperius occurrence (82 non-overlapping points) were constructed, with layers referring to relief, biomes with phytogeographic regions, and hydrographic basins. Most points are below 50 m.a.s.l. in altitude (86.8%). The Pampa biome and Pioneer Formations have the highest percentages of occurrence points (74.4 and 71.9%, respectively). The interpolation of the occurrence points with environmental data characterized the preferential distribution of P. asperius in low-altitude areas, especially in wetlands and in the Pioneer Formations. These environments undergo intense changes by anthropic interventions. We draw attention to the low number of occurrence points in UCs. We still recommend to review the conservation status of P. asperius, include it for recomposing vegetation in degraded areas and create more CUs in the Pampa biome.","PeriodicalId":38672,"journal":{"name":"Rodriguesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67284870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/2175-7860202273109
E. Souza, Francisco Álvaro Almeida Nepomuceno, Francisco Diego Sousa Santos, Francisco Fernandes de Araújo, Izaíra Vasconcelos Nepomuceno, Alexandre Souza de Paula, V. O. Amorim, M. S. Branco, Samuel Trajano Rabelo, David Mendes Macelli Pinto, João Batista Silva do Nascimento, M. F. Moro
Abstract The Seasonally Dry Tropical Forests and Woodlands biome (SDTFW) has its largest nucleus in the Caatinga domain. We characterized the flora and physiognomy of the vegetation in the Pedra da Andorinha Wildlife Refuge (RPA), in Ceará, Brazil. Plant collections were made between March/2015 and May/2021, applying usual botanical methods. All material was deposited in HUVA herbarium. The phytosociological studies covered five 50 m x 50 m plots established (1.25 ha) in which all individuals with diameters at soil level ³ 3 cm were inventoried. We identified 266 vascular plants species distributed among 185 genera and 67 families, including one fern (Marsilea deflexa - Marsileaceae). Fabaceae had the greatest species richness (38 spp.), while Ipomoea was the richest genus (9 spp.). 43.6% of all plant species were herbaceous, with a predominance of therophytes (57.5% of all herbaceous plants). The phytosociological study sampled 1,988 individuals distributed among 24 species of 13 families. The species with the greatest important value were Cordia oncocalyx (Boraginaceae) and Croton blanchetianus (Euphorbiaceae). We classify the local physiognomy as typical caatinga sensu stricto vegetation and rocky vegetation on inselbergs and outcrops. We highlight the richness of herbaceous plants in the local community, which surpass the richness of the woody component.
摘要/ Abstract摘要:季节性干旱热带森林和林地生物群系(SDTFW)在Caatinga域具有最大的核。对巴西塞埃尔 Pedra da Andorinha野生动物保护区(RPA)的植被区系和地貌特征进行了研究。植物采集时间为2015年3月至2021年5月，采用常规植物学方法。所有材料均存放于HUVA植物标本室。植物社会学研究覆盖了建立的5个50 m × 50 m的样地(1.25 ha)，其中所有直径在土壤水平³3 cm的个体都被调查。共鉴定出维管植物266种，分属67科185属，其中蕨类植物1种(Marsilea deflexa - Marsileaceae)。豆科物种丰富度最高(38种)，豆科物种丰富度最高(9种)。草本植物占43.6%，以植生植物为主，占草本植物的57.5%。植物社会学研究取样1988个个体，分布在13科24种。其中最具重要价值的种为菖蒲科(Cordia oncocalyx)和大戟科(Croton blanchetianus)。我们将当地的地貌分为典型的严格意义上的植被和岩石植被。我们强调了当地群落中草本植物的丰富度，这超过了木本成分的丰富度。
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