Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0163
R. C. Sodré, A. A. Alonso, Marcos José da Silva
Croton section Adenophylli is the largest section in the genus, with around 223 species distributed in the neotropical region. One of the main diagnostic characteristics of this section is the fruit columella, which has three prominent ascending terminal appendages. During a taxonomic review of this section in Brazil, we observed that C. campestris has a problematic taxonomic circumscription, thereby being confused with some other congeners. We investigate the circumscription of C. campestris through the examination of several herbarium specimens across its entire geographic range, and in its different habitats. We conducted macro-and micro-morphological studies as well as molecular analyses based on DNA sequences. Our results allow us to propose two new species ( C. hatschbachii and C. stellatorotatus ), update the nomenclature of C. campestris and C. subvillosus , and define the systematic positions, phylogenetic relationships, morphology and leaf anatomy of the above-mentioned taxa. The species are described, and their geographic distributions, morphological relationships, flowering and fruiting times, and conservation statuses are commented on. The two new species are also illustrated. Seventeen new synonyms, thirteen lectotypes and two neotypes are proposed. We also provide a key for the identification of 11 taxa belonging to the section Adenophylli , previously confused with C. campestris .
{"title":"Revised delimitation of Croton campestris (Euphorbiaceae), including description of two new species, molecular phylogenetic, anatomical and micromorphological data","authors":"R. C. Sodré, A. A. Alonso, Marcos José da Silva","doi":"10.1590/0102-33062021abb0163","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0163","url":null,"abstract":"Croton section Adenophylli is the largest section in the genus, with around 223 species distributed in the neotropical region. One of the main diagnostic characteristics of this section is the fruit columella, which has three prominent ascending terminal appendages. During a taxonomic review of this section in Brazil, we observed that C. campestris has a problematic taxonomic circumscription, thereby being confused with some other congeners. We investigate the circumscription of C. campestris through the examination of several herbarium specimens across its entire geographic range, and in its different habitats. We conducted macro-and micro-morphological studies as well as molecular analyses based on DNA sequences. Our results allow us to propose two new species ( C. hatschbachii and C. stellatorotatus ), update the nomenclature of C. campestris and C. subvillosus , and define the systematic positions, phylogenetic relationships, morphology and leaf anatomy of the above-mentioned taxa. The species are described, and their geographic distributions, morphological relationships, flowering and fruiting times, and conservation statuses are commented on. The two new species are also illustrated. Seventeen new synonyms, thirteen lectotypes and two neotypes are proposed. We also provide a key for the identification of 11 taxa belonging to the section Adenophylli , previously confused with C. campestris .","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"9 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88887110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062020abb0500
Bruna Farias de Santana, R. Voeks, L. S. Funch
{"title":"Quilombola Ethnomedicine: The Role of Age, Gender, and Culture Change","authors":"Bruna Farias de Santana, R. Voeks, L. S. Funch","doi":"10.1590/0102-33062020abb0500","DOIUrl":"https://doi.org/10.1590/0102-33062020abb0500","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"38 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88316170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0150
José Orlando Bispo dos Santos, Adriele Santana da Silva Oliveira Carneiro, Ilana Marques de Souza Dias, M. D. Saba, L. Lima, Francisco Hilder Magalhães-e-Silva
{"title":"Endemic Papilionoideae of the Caatinga: a contribution to the palynological knowledge of Leguminosae","authors":"José Orlando Bispo dos Santos, Adriele Santana da Silva Oliveira Carneiro, Ilana Marques de Souza Dias, M. D. Saba, L. Lima, Francisco Hilder Magalhães-e-Silva","doi":"10.1590/0102-33062021abb0150","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0150","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"74 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90594702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0124
Júlia Sonsin-Oliveira, Victor Hugo Dias Santiago, C. Fagg, R. Oliveira, Dulce Maria Sucena Rocha
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{"title":"Sucupira-branca (Pterodon - Fabaceae): does wood anatomy support the distinction among species and hybrid?","authors":"Júlia Sonsin-Oliveira, Victor Hugo Dias Santiago, C. Fagg, R. Oliveira, Dulce Maria Sucena Rocha","doi":"10.1590/0102-33062021abb0124","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0124","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"24 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84496161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0225
A. Ashraf, K. Habib, A. Khalid
{"title":"A new pruinose lichen species in genus Lobothallia (Megasporaceae, lichen forming Ascomycota) from Pakistan","authors":"A. Ashraf, K. Habib, A. Khalid","doi":"10.1590/0102-33062021abb0225","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0225","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"105 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73647268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0329
C. T. Oliveira, G. Antar, P. Gonella, J. Pirani
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，
{"title":"Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil","authors":"C. T. Oliveira, G. Antar, P. Gonella, J. Pirani","doi":"10.1590/0102-33062021abb0329","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0329","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"50 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75818634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062020abb0487
E. Pessoa, Maycon Jordan Costa da Silva, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, A. W. Ferreira
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，
{"title":"An updated checklist reveals strong incongruities with previous studies: insights after revisiting a regional orchid list","authors":"E. Pessoa, Maycon Jordan Costa da Silva, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, A. W. Ferreira","doi":"10.1590/0102-33062020abb0487","DOIUrl":"https://doi.org/10.1590/0102-33062020abb0487","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"18 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85899192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1677-941x-abb-2022-0007
C. Serrote, L. Reiniger, K. B. D. Silva, Charlene Moro Stefanel
Gene flow allows connectivity of geographically isolated populations and which genetic diversity is reduced. Understanding how gene flow occurs is essential to conservation and selection of priority populations for intervention. In this study, the rates of migration and selfing of Copaifera langsdorffii Desf. sampled in Cerrado fragments in the State of São Paulo, Brazil, were estimated through computer simulations. Different selfing and migration rates were tested and the combination that showed values of observed and expected heterozygosity closest to those previously obtained with microsatellite markers was selected. According to the simulations, selfing and migration were low. Due to the high geographical distances among the fragments, gene flow was limited and may have led to low genetic diversity in the fragments. It is recommend enriching the area with high genetic diversity germplasm and reducing disturbance to promote the occurrence of pollinators, in order to increase the genetic diversity.
{"title":"Gene flow affects the genetic diversity of Copaifera langsdorffii Desf. in Cerrado","authors":"C. Serrote, L. Reiniger, K. B. D. Silva, Charlene Moro Stefanel","doi":"10.1590/1677-941x-abb-2022-0007","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0007","url":null,"abstract":"Gene flow allows connectivity of geographically isolated populations and which genetic diversity is reduced. Understanding how gene flow occurs is essential to conservation and selection of priority populations for intervention. In this study, the rates of migration and selfing of Copaifera langsdorffii Desf. sampled in Cerrado fragments in the State of São Paulo, Brazil, were estimated through computer simulations. Different selfing and migration rates were tested and the combination that showed values of observed and expected heterozygosity closest to those previously obtained with microsatellite markers was selected. According to the simulations, selfing and migration were low. Due to the high geographical distances among the fragments, gene flow was limited and may have led to low genetic diversity in the fragments. It is recommend enriching the area with high genetic diversity germplasm and reducing disturbance to promote the occurrence of pollinators, in order to increase the genetic diversity.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"120 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86138152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1677-941x-abb-2021-0335
Maísa Barbosa Lauton, E. Gressler, Jaqueline Amorim de Oliveira, P. Simioni, Norberto Gomes Ribeiro-Júnior, O. Yamashita, I. Silva
Justicia calycina is a subshrub well distributed in northern South America. Despite its widespread occurrence, little is known about its anatomy and plasticity in different environments. Our study aimed to evaluate how leaf anatomical traits of J . calycina adjust in forest areas with variations in canopy openness in the Southern Amazon, Mato Grosso State, Brazil. Forest areas were: Open and Dense Ombrophilous Forest, and Seasonal Deciduous Forest (rocky outcrop). We performed anatomical measurements in leaves sampled on 10 individuals in each forest site, with the help of usual anatomy techniques. Foliar anatomy of J . calycina showed similar pattern among the studied forests, with significant difference (p<0.05) in four leaf traits among 22 studied: vascular bundle diameter, palisade parenchyma thickness, stomatal density and trichome density in adaxial epidermis. These leaf traits showed high plasticity index, with higher values in Dense Forest and in Deciduous Forest. Even though J . calycina showed overall little anatomical variation among forest types, the few attributes that differed are fundamental in the photosynthesis process. The adjustment in leaf anatomical traits under different luminosity conditions demonstrates a degree of phenotypic plasticity in the species, which contributes to its distribution in different forest phytophysiognomies in Brazilian Amazonia.
{"title":"Does the functional leaf anatomy of Justicia calycina (Acanthaceae) reflect variation across a canopy gradient in the Southern Brazilian Amazon?","authors":"Maísa Barbosa Lauton, E. Gressler, Jaqueline Amorim de Oliveira, P. Simioni, Norberto Gomes Ribeiro-Júnior, O. Yamashita, I. Silva","doi":"10.1590/1677-941x-abb-2021-0335","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2021-0335","url":null,"abstract":"Justicia calycina is a subshrub well distributed in northern South America. Despite its widespread occurrence, little is known about its anatomy and plasticity in different environments. Our study aimed to evaluate how leaf anatomical traits of J . calycina adjust in forest areas with variations in canopy openness in the Southern Amazon, Mato Grosso State, Brazil. Forest areas were: Open and Dense Ombrophilous Forest, and Seasonal Deciduous Forest (rocky outcrop). We performed anatomical measurements in leaves sampled on 10 individuals in each forest site, with the help of usual anatomy techniques. Foliar anatomy of J . calycina showed similar pattern among the studied forests, with significant difference (p<0.05) in four leaf traits among 22 studied: vascular bundle diameter, palisade parenchyma thickness, stomatal density and trichome density in adaxial epidermis. These leaf traits showed high plasticity index, with higher values in Dense Forest and in Deciduous Forest. Even though J . calycina showed overall little anatomical variation among forest types, the few attributes that differed are fundamental in the photosynthesis process. The adjustment in leaf anatomical traits under different luminosity conditions demonstrates a degree of phenotypic plasticity in the species, which contributes to its distribution in different forest phytophysiognomies in Brazilian Amazonia.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"86 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72881829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0117
V. N. Yoshikawa, M. Duarte, C. Ferreira
A new combination and a new status, Pachira manausensis , is here proposed. After making field observations and analyzing type and herbarium specimens, we realized that P. aquatica var. manausensis should be treated as a species due to many morphological and distribution differences compared to the typical variety. We provide detailed descriptions and a distribution map, table, key, and plate to distinguish both species using morphological characteristics. Typifications and nomenclatural notes for related names were performed
{"title":"Typification of names in Pachira aquatica Aubl. (Malvaceae, Bombacoideae) with a new combination and new status from the Brazilian Amazon forest","authors":"V. N. Yoshikawa, M. Duarte, C. Ferreira","doi":"10.1590/0102-33062021abb0117","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0117","url":null,"abstract":"A new combination and a new status, Pachira manausensis , is here proposed. After making field observations and analyzing type and herbarium specimens, we realized that P. aquatica var. manausensis should be treated as a species due to many morphological and distribution differences compared to the typical variety. We provide detailed descriptions and a distribution map, table, key, and plate to distinguish both species using morphological characteristics. Typifications and nomenclatural notes for related names were performed","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"14 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80213516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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