Pub Date : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18854
Norberto H. Montaldo, Anita I. Mantese, G. Roitman
: Breeding system and pollination of woody species in a subtropical forest invaded by alien plants. In the riparian forest of Punta Lara (Buenos Aires province, Argentina) seven woody bird-dispersed species coexist, five of which are native (Ocotea acutifolia, Allophylus edulis, Myrsine laetevirens, Blepharocalyx salicifolius and Citharexylum montevidense), and two are invasive aliens (Rubus ulmifolius and Ligustrum lucidum). While seed dispersal of these species has been studied, other aspects of their reproduction are unknown. In this paper we studied the breeding systems, the quality of the pollination service they receive and their floral visitors. All species are xenogamous. One species (M. laetevirens) is anemophilous and the others are visited mostly by Diptera, Hymenoptera and Lepidoptera. For most of the native species the pollination service seems insufficient. In A. edulis and B. salicifolius natural fruit set was lower than that of hand cross-pollinated flowers, only O. acutifolia and the two exotic showed stigmatic pollen loads sufficient to achieve maximum seed production. A possible explanation for the patterns found lies in the reduction of populations of native species due to the expansion of the aliens, particularly L. lucidum.
{"title":"Sistema reproductivo y polinización de especies leñosas en una selva subtropical invadida por plantas exóticas","authors":"Norberto H. Montaldo, Anita I. Mantese, G. Roitman","doi":"10.31055/1851.2372.V52.N4.18854","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18854","url":null,"abstract":": Breeding system and pollination of woody species in a subtropical forest invaded by alien plants. In the riparian forest of Punta Lara (Buenos Aires province, Argentina) seven woody bird-dispersed species coexist, five of which are native (Ocotea acutifolia, Allophylus edulis, Myrsine laetevirens, Blepharocalyx salicifolius and Citharexylum montevidense), and two are invasive aliens (Rubus ulmifolius and Ligustrum lucidum). While seed dispersal of these species has been studied, other aspects of their reproduction are unknown. In this paper we studied the breeding systems, the quality of the pollination service they receive and their floral visitors. All species are xenogamous. One species (M. laetevirens) is anemophilous and the others are visited mostly by Diptera, Hymenoptera and Lepidoptera. For most of the native species the pollination service seems insufficient. In A. edulis and B. salicifolius natural fruit set was lower than that of hand cross-pollinated flowers, only O. acutifolia and the two exotic showed stigmatic pollen loads sufficient to achieve maximum seed production. A possible explanation for the patterns found lies in the reduction of populations of native species due to the expansion of the aliens, particularly L. lucidum.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"37 1","pages":"675-687"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78102742","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18871
F. Ratto, A. Bartoli
During the revision of South American species of Gutierrezia (Asteraceae, Astereae) taxonomic novelties were established: (1) two new varieties were described, Gutierrezia mandonii var. anomala from northwestern Argentina, and Gutierrezia isernii var. nivea from central and western Argentina; and (2) the species Gutierrezia pulviniformis was included as a new synonym of Gutierrezia spathulata.
在南美洲菊科菊科古铁雷齐亚(Gutierrezia mandonii var. anomala)和阿根廷中部和西部古铁雷齐亚(Gutierrezia isernii var. nivea)的物种修订过程中，发现了两个新变种;(2)将pulviniformis作为Gutierrezia spathulata的新名种。
{"title":"Taxonomic novelties in South American species of Gutierrezia (Asteraceae, Astereae)","authors":"F. Ratto, A. Bartoli","doi":"10.31055/1851.2372.V52.N4.18871","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18871","url":null,"abstract":"During the revision of South American species of Gutierrezia (Asteraceae, Astereae) taxonomic novelties were established: (1) two new varieties were described, Gutierrezia mandonii var. anomala from northwestern Argentina, and Gutierrezia isernii var. nivea from central and western Argentina; and (2) the species Gutierrezia pulviniformis was included as a new synonym of Gutierrezia spathulata.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"6 1","pages":"779-785"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82626065","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18842
M. M. Aleman, P. S. Hoc, D. L. Spahr, C. Yáñez, Carlos Anselmo Gomez
: Fusion, sculptures and ornamentation of the corolla pieces of 17 species of Papilionoideae. The species of subfamily Papilionoideae present flowers with a complex architecture, with elaborated petals in which it has been documented the presence of auricles and callosities, appendixes or spurs that joint the pieces of the corolla and also microsculpturings on the wings. In this study, we analyze the morphology of the petals of 17 species of Papilionoideae (Leguminosae) native of Salta province, Argentina. The lower margins of the keel were fused in all of the species, through different types of fusion of epidermal cells. Only a few species presented fusion in the upper margin of the keel. All the species showed sculpturings in the petals, which would joint some of the pieces of the corolla. They also exhibit ornaments or microsculpturings in the basal region of the adaxial surface of the wings that may act as a grip for pollinators when they land on the flower. The petals of the Papilionoideae flowers presented characteristics that could restrict the type of pollinator able to activate the different mechanisms of pollination that allow them to access the rewards enclosed by the keel.
{"title":"Fusión, esculturas y ornamentaciones de las piezas de la corola de 17 especies de Papilionoideae","authors":"M. M. Aleman, P. S. Hoc, D. L. Spahr, C. Yáñez, Carlos Anselmo Gomez","doi":"10.31055/1851.2372.V52.N4.18842","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18842","url":null,"abstract":": Fusion, sculptures and ornamentation of the corolla pieces of 17 species of Papilionoideae. The species of subfamily Papilionoideae present flowers with a complex architecture, with elaborated petals in which it has been documented the presence of auricles and callosities, appendixes or spurs that joint the pieces of the corolla and also microsculpturings on the wings. In this study, we analyze the morphology of the petals of 17 species of Papilionoideae (Leguminosae) native of Salta province, Argentina. The lower margins of the keel were fused in all of the species, through different types of fusion of epidermal cells. Only a few species presented fusion in the upper margin of the keel. All the species showed sculpturings in the petals, which would joint some of the pieces of the corolla. They also exhibit ornaments or microsculpturings in the basal region of the adaxial surface of the wings that may act as a grip for pollinators when they land on the flower. The petals of the Papilionoideae flowers presented characteristics that could restrict the type of pollinator able to activate the different mechanisms of pollination that allow them to access the rewards enclosed by the keel.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"77 1","pages":"623-646"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86885690","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18857
J. R. Giacosa, D. A. Gorrer, G. Giudice, M. L. Luna
The spore germination and gametophyte development of Ctenitis submarginalis from Punta Lara Natural Reserve, Buenos Aires province were studied as a contribution to the conservation of the species in this protected area. Spores collected from natural populations were sowing in Dyer medium and germinated in six day with a percentaje of 88 % fifteen days after sowing. The germination is Vittaria type and the gametophyte development is Aspidium type. The gametophyte of Ctenitis submarginalis is cordate, with a deep notch and well developed and symmetric wings. The gametangia appear 50 days after sowing. The sporophyte emerges 190 days after sowing and two different hairs were observed in the first lamina. The in-vitro spore germination is a successful method for obtaining numerous sporophytes of Ctenitis submarginalis. The sporophytes obtained were gradually acclimated, transplanted to its natural habitat in the reserve and will be monitored frequently to contribute to the conservation of the species.
{"title":"Gametophyte development and conservation of Ctenitis submarginalis (Dryopteridaceae) in Buenos Aires Province, Argentina","authors":"J. R. Giacosa, D. A. Gorrer, G. Giudice, M. L. Luna","doi":"10.31055/1851.2372.V52.N4.18857","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18857","url":null,"abstract":"The spore germination and gametophyte development of Ctenitis submarginalis from Punta Lara Natural Reserve, Buenos Aires province were studied as a contribution to the conservation of the species in this protected area. Spores collected from natural populations were sowing in Dyer medium and germinated in six day with a percentaje of 88 % fifteen days after sowing. The germination is Vittaria type and the gametophyte development is Aspidium type. The gametophyte of Ctenitis submarginalis is cordate, with a deep notch and well developed and symmetric wings. The gametangia appear 50 days after sowing. The sporophyte emerges 190 days after sowing and two different hairs were observed in the first lamina. The in-vitro spore germination is a successful method for obtaining numerous sporophytes of Ctenitis submarginalis. The sporophytes obtained were gradually acclimated, transplanted to its natural habitat in the reserve and will be monitored frequently to contribute to the conservation of the species.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"69 1 1","pages":"697-703"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83322233","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 : 2017-12-15DOI: 10.31055/1851.2372.v52.n4.18844
M. Barría, Martina Crettón, Celeste Gurín, M. Arce, Enrique Rost, M. Mazzuca
Woody plants constitute a vital food reserve for the herbivores inhabiting the Patagonian steppe. In a preliminary study, some of these plants showed a high content of ether extract (FAT). To determine whether the low availability of nitrogen in soils leads to low forage quality and whether a high FAT content correlates with a high amount of nutritive lipids, namely fatty acids (FA), chemical parameters of forage quality of aerial parts of thirteen woody plants from this steppe were analyzed. Plants showed moderate or low crude protein (CP) content, and, independently of the FAT content, all samples had approximately the same total content of FA (TFA), with an average of 1% of dry matter. The highest CP content was found in aerial parts of Atriplex lampa (13%), Atriplex sagittifolia (10%), Adesmia salamancensis (10%) and seeds of Retanilla patagonica (22%). This parameter and the values of digestibility (DMD) defined these four species as those with best forage quality. Except for A. lampa and Berberis microphylla, which have been previously studied in other regions of Argentina, this is the first report on the nutritional quality of woody species from the Patagonian steppe.
{"title":"Contenido de nutrientes de especies leñosas en la estepa patagónica, Argentina.","authors":"M. Barría, Martina Crettón, Celeste Gurín, M. Arce, Enrique Rost, M. Mazzuca","doi":"10.31055/1851.2372.v52.n4.18844","DOIUrl":"https://doi.org/10.31055/1851.2372.v52.n4.18844","url":null,"abstract":"Woody plants constitute a vital food reserve for the herbivores inhabiting the Patagonian steppe. In a preliminary study, some of these plants showed a high content of ether extract (FAT). To determine whether the low availability of nitrogen in soils leads to low forage quality and whether a high FAT content correlates with a high amount of nutritive lipids, namely fatty acids (FA), chemical parameters of forage quality of aerial parts of thirteen woody plants from this steppe were analyzed. Plants showed moderate or low crude protein (CP) content, and, independently of the FAT content, all samples had approximately the same total content of FA (TFA), with an average of 1% of dry matter. The highest CP content was found in aerial parts of Atriplex lampa (13%), Atriplex sagittifolia (10%), Adesmia salamancensis (10%) and seeds of Retanilla patagonica (22%). This parameter and the values of digestibility (DMD) defined these four species as those with best forage quality. Except for A. lampa and Berberis microphylla, which have been previously studied in other regions of Argentina, this is the first report on the nutritional quality of woody species from the Patagonian steppe.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"53 1","pages":"663-674"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74169020","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18861
L. Carbone, Natalia Aguirre-Acosta, Julia Tavella, Ramiro Aguilar
Floristic changes induced by fire frequency in Chaco Serrano. The Sierras Chicas from Cordoba is the mountain range with the highest fire frequency in central Argentina. However, the response to fire frequency of Chaco Serrano plant communities has not yet been assessed. Based on 23-year fire history, we surveyed all vascular plants in unburned, low and high fire frequency sites in the Chaco Serrano district located on Sierras Chicas from Cordoba. We found that fire frequency induces changes in vegetation structure, plant richness, and composition. Specifically, we observed a decrease in total plant richness at sites with a higher number of fire events. All life forms showed decreases in richness to the effects of fire, except the graminoids that showed no changes. In addition, we recorded a change in the species composition between the burned sites (both frequencies) and unburned sites, evidenced through the emergence of indicator species that define both conditions. These results indicate that fire is a strong ecological process that shapes plant communities, selecting species with life history traits (i.e., resprouting and lifespan) that confer adaptative value to new environmental conditions imposed by the regime of high fire frequency.
{"title":"Cambios florísticos inducidos por la frecuencia de fuego en el Chaco Serrano.","authors":"L. Carbone, Natalia Aguirre-Acosta, Julia Tavella, Ramiro Aguilar","doi":"10.31055/1851.2372.V52.N4.18861","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18861","url":null,"abstract":"Floristic changes induced by fire frequency in Chaco Serrano. The Sierras Chicas from Cordoba is the mountain range with the highest fire frequency in central Argentina. However, the response to fire frequency of Chaco Serrano plant communities has not yet been assessed. Based on 23-year fire history, we surveyed all vascular plants in unburned, low and high fire frequency sites in the Chaco Serrano district located on Sierras Chicas from Cordoba. We found that fire frequency induces changes in vegetation structure, plant richness, and composition. Specifically, we observed a decrease in total plant richness at sites with a higher number of fire events. All life forms showed decreases in richness to the effects of fire, except the graminoids that showed no changes. In addition, we recorded a change in the species composition between the burned sites (both frequencies) and unburned sites, evidenced through the emergence of indicator species that define both conditions. These results indicate that fire is a strong ecological process that shapes plant communities, selecting species with life history traits (i.e., resprouting and lifespan) that confer adaptative value to new environmental conditions imposed by the regime of high fire frequency.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"14 1","pages":"753-778"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86578383","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18855
Lorena Ashworth, Julia L. Camina, Guillermo Funes
Physical seed dormancy in Lepechinia floribunda (Lamiaceae): a medicinal native shrub. Lepechinia floribunda is an aromatic and medicinal shrub with multiple uses. The low germination of its seeds is the main limiting trait for propagation. The goal of this study was to test the presence of physical seed dormancy in L. floribunda and to assess the effectiveness of time of storage and different pregermination treatments in order to overcome such dormancy. We conducted an imbibition experiment and tested germination in seeds stored for 0, 90, 270, and 1050 days, which were subjected to pretreatments of thermal (water at 100°C) and chemical scarification (sulphuric acid). Seeds of L. floribunda have physical dormancy, and the most effective treatment to break it was sulphuric acid, surpassing 70% of germination. Time of storage did not affect the state of dormancy, and the viability of seeds was maintained high for at least 3 years. Results from this study will help to establish strategies of sexual propagation of this native useful plant species.
{"title":"Dormición física en Lepechinia floribunda (Lamiaceae): Un arbusto nativo de interés medicinal","authors":"Lorena Ashworth, Julia L. Camina, Guillermo Funes","doi":"10.31055/1851.2372.V52.N4.18855","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18855","url":null,"abstract":"Physical seed dormancy in Lepechinia floribunda (Lamiaceae): a medicinal native shrub. Lepechinia floribunda is an aromatic and medicinal shrub with multiple uses. The low germination of its seeds is the main limiting trait for propagation. The goal of this study was to test the presence of physical seed dormancy in L. floribunda and to assess the effectiveness of time of storage and different pregermination treatments in order to overcome such dormancy. We conducted an imbibition experiment and tested germination in seeds stored for 0, 90, 270, and 1050 days, which were subjected to pretreatments of thermal (water at 100°C) and chemical scarification (sulphuric acid). Seeds of L. floribunda have physical dormancy, and the most effective treatment to break it was sulphuric acid, surpassing 70% of germination. Time of storage did not affect the state of dormancy, and the viability of seeds was maintained high for at least 3 years. Results from this study will help to establish strategies of sexual propagation of this native useful plant species.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"14 8 1","pages":"689-696"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80659664","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18860
María Lis Echeverría, E. L. Camadro
Chrysolaena flexuosa is a South American species of potential ornamental value (basic chromosome number of x=10). Diploid (n=10) and tetraploid (n=20) cytotypes have been reported for its distribution area, although one hexaploid (n=30-32ca.) cytotype has been reported for its most southern distribution. To investigate if ploidy and latitude are positively related in Ch. flexuosa natural populations and if sexual polyploidization could have had a role in the origin of the polyploid cytotypes, we determined chromosome numbers, DNA content, and pollen viability and size, and analyzed microsporogenesis in samples of seven Argentinian accessions. Two of the northeastern accessions were diploid and one was tetraploid, whereas the four southeastern accessions were hexaploid. Ploidy levels determined both by chromosome countings and flow cytometry coincided, although monoploid genome size significantly decreased with increasing ploidy. In all accessions, variability was observed for pollen viability and size, as well as for large (presumably 2n) pollen production. This variability was underlined by abnormal cytological events in meiosis and at the tetrad stage (lagging chromosomes, parallel spindles, triads). The results would indicate that there is, apparently, a positive relation between ploidy and latitude, and suggest a likely role of sexual polyploidization in the origin, establishment and expansion of Ch. flexuosa populations.
{"title":"Número de cromosomas, anomalías meióticas y formación de polen 2n en accesiones de la especie silvestre Chrysolaena flexuosa (Vernonieae, Compositae) de su rango de distribución en Argentina.","authors":"María Lis Echeverría, E. L. Camadro","doi":"10.31055/1851.2372.V52.N4.18860","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18860","url":null,"abstract":"Chrysolaena flexuosa is a South American species of potential ornamental value (basic chromosome number of x=10). Diploid (n=10) and tetraploid (n=20) cytotypes have been reported for its distribution area, although one hexaploid (n=30-32ca.) cytotype has been reported for its most southern distribution. To investigate if ploidy and latitude are positively related in Ch. flexuosa natural populations and if sexual polyploidization could have had a role in the origin of the polyploid cytotypes, we determined chromosome numbers, DNA content, and pollen viability and size, and analyzed microsporogenesis in samples of seven Argentinian accessions. Two of the northeastern accessions were diploid and one was tetraploid, whereas the four southeastern accessions were hexaploid. Ploidy levels determined both by chromosome countings and flow cytometry coincided, although monoploid genome size significantly decreased with increasing ploidy. In all accessions, variability was observed for pollen viability and size, as well as for large (presumably 2n) pollen production. This variability was underlined by abnormal cytological events in meiosis and at the tetrad stage (lagging chromosomes, parallel spindles, triads). The results would indicate that there is, apparently, a positive relation between ploidy and latitude, and suggest a likely role of sexual polyploidization in the origin, establishment and expansion of Ch. flexuosa populations.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"65 1","pages":"737-752"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84926923","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18872
F. Luebert
The genera of Heliotropiaceae in Argentina. The generic delimitation within Heliotropiaceae has changed in the past years. However, these changes are not reflected in recent taxonomic publications on the group in Argentina. In this contribution, the taxonomy of the genera of Heliotropiaceae in Argentina is updated and all accepted species are enumerated. Brief generic descriptions and a key to distinguish the genera are provided. The genera of Heliotropiceae accepted in this work are Euploca, Heliotropium, Ixorhea and Myriopus, all of them present in Argentina. Lectotypes for Heliotropium hasslerianum (?Euploca hassleriana) and Heliotropium patagonicum are here selected and the new combination Heliotropium lilloi (based on Tournefortia lilloi) is proposed in order to complete the taxonomic treatment of the family in Argentina.
{"title":"Los géneros de Heliotropiaceae en Argentina","authors":"F. Luebert","doi":"10.31055/1851.2372.V52.N4.18872","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18872","url":null,"abstract":"The genera of Heliotropiaceae in Argentina. The generic delimitation within Heliotropiaceae has changed in the past years. However, these changes are not reflected in recent taxonomic publications on the group in Argentina. In this contribution, the taxonomy of the genera of Heliotropiaceae in Argentina is updated and all accepted species are enumerated. Brief generic descriptions and a key to distinguish the genera are provided. The genera of Heliotropiceae accepted in this work are Euploca, Heliotropium, Ixorhea and Myriopus, all of them present in Argentina. Lectotypes for Heliotropium hasslerianum (?Euploca hassleriana) and Heliotropium patagonicum are here selected and the new combination Heliotropium lilloi (based on Tournefortia lilloi) is proposed in order to complete the taxonomic treatment of the family in Argentina.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":"4 1","pages":"787-796"},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83581083","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 : 2017-12-15DOI: 10.31055/1851.2372.V52.N4.18873
M. C. Luján, G. Barboza, G. J. Martínez
: Confluence of ethnomedical experiences and use of medicinal plants of practitioners native to Translasierra Valley (San Javier Department), Cordoba, Argentina. The valley named as Valle de Traslasierra extends over the western mountainside of the Sierras de Los Comechingones hills. Its characteristic distance from large cities changed qualitatively due to major migration flows. This study aims at characterizing the ethnomedicine and natural pharmacopoeia in the region. We followed qualitative and quantitative methods representative of the ethnobotanical approach. We evidenced a vast and varied therapeutics exerted by native practitioners with a total of 676 medicinal uses corresponding to 231 taxa and 84 botanical families. An analysis of frequency of uses and taxa was also carried out through descriptive statistics. The families with higher number of cited taxa and medicinal use are Asteraceae, Lamiaceae, Fabaceae, Rosaceae and Verbenaceae. The most commonly found applications were those related to gastrointestinal disorders, followed by those related to pneumology and cardiology. From the taxa with the largest number of applications, 60% comprise introduced species and 40% consist of wild native species. Finally, the narratives show that native practitioners, while keeping alive practices based on popular medical knowledge, they have incorporated various therapeutic practices and representations, especially from alternative medicine, thus forming a vast natural pharmacopoeia with multiple meanings, typical of multicultural contexts.
:阿根廷科尔多瓦transasierra山谷(圣哈维尔省)土著从业者的民族医学经验和药用植物使用的融合。这个山谷被命名为Valle de Traslasierra，它延伸到sierra de Los Comechingones山的西部山腰上。由于大规模的人口流动，其与大城市的特征距离发生了质的变化。本研究旨在对该地区的民族药和天然药典进行特征分析。我们采用了具有代表性的民族植物学方法的定性和定量方法。我们证明了一个巨大的和不同的治疗发挥了本土从业者与总共676药用用途对应的231分类群和84植物学家族。通过描述性统计对其使用频率和分类群进行了分析。被引分类群数量和药用价值较高的科为菊科、兰科、豆科、蔷薇科和马鞭草科。最常见的应用是与胃肠道疾病相关的，其次是与肺炎和心脏病相关的。在应用数量最多的分类群中，60%为引进物种，40%为野生本地物种。最后，这些叙述表明，当地从业者在保留基于流行医学知识的实践的同时，还将各种治疗实践和表现形式，特别是替代医学的实践和表现形式结合起来，从而形成了一个具有多种含义的庞大的天然药典，具有典型的多元文化背景。
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