Pub Date : 2015-07-31DOI: 10.14522/DARWINIANA.2014.31.641
H. F. Gutiérrez
Recent phylogenetic studies provide evidence that the group of species considered under Pennisetum, Cenchrus, and Odontelytrum have a common origin and, therefore, their unification and transfer to the genus Cenchrus has been proposed. Nevertheless, no taxonomic treatment which includes all species is available up to now. The purpose of this study is to perform a taxonomic revision of the American species of the genus Cenchrus s.l. (excluding the monotypic genus Odontelytrum , native to Africa). An expanded description of the genus and a key to identify the species is given. For each species, detailed descriptions, the current synonyms, geographic distribution, observations, and illustrations are presented. In total, 41 species are recognized (11 endemic and 8 are adventitious and /or naturalized). Lectotypes are here designated for the following taxa: Gymnotrix chilensis, G. mexicana, G. geniculata, Pennisetum villosum var. humile, P. lanuginosum, Cenchrus crinitus, C. mutilatus, C. palmeri, C. setosus, C. spinifex and, C. muricatus Phil. Four new synonyms ( Gymnotrix distachya, G. rigida var. longiseta, Pennisetum nervosum var. laxiusculum and C. echinatus fo. longispina ) are proposed and one neotype is suggested for Pennisetum latifolium . In addition, the geographical distribution of C. mutilatus expands to Bolivia.
{"title":"LAS ESPECIES AMERICANAS DEL GÉNERO CENCHRUS S.L. (POACEAE, PANICOIDEAE, PANICEAE)","authors":"H. F. Gutiérrez","doi":"10.14522/DARWINIANA.2014.31.641","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.31.641","url":null,"abstract":"Recent phylogenetic studies provide evidence that the group of species considered under Pennisetum, Cenchrus, and Odontelytrum have a common origin and, therefore, their unification and transfer to the genus Cenchrus has been proposed. Nevertheless, no taxonomic treatment which includes all species is available up to now. The purpose of this study is to perform a taxonomic revision of the American species of the genus Cenchrus s.l. (excluding the monotypic genus Odontelytrum , native to Africa). An expanded description of the genus and a key to identify the species is given. For each species, detailed descriptions, the current synonyms, geographic distribution, observations, and illustrations are presented. In total, 41 species are recognized (11 endemic and 8 are adventitious and /or naturalized). Lectotypes are here designated for the following taxa: Gymnotrix chilensis, G. mexicana, G. geniculata, Pennisetum villosum var. humile, P. lanuginosum, Cenchrus crinitus, C. mutilatus, C. palmeri, C. setosus, C. spinifex and, C. muricatus Phil. Four new synonyms ( Gymnotrix distachya, G. rigida var. longiseta, Pennisetum nervosum var. laxiusculum and C. echinatus fo. longispina ) are proposed and one neotype is suggested for Pennisetum latifolium . In addition, the geographical distribution of C. mutilatus expands to Bolivia.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"29 1","pages":"114-200"},"PeriodicalIF":0.0,"publicationDate":"2015-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76032557","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 : 2015-02-27DOI: 10.14522/darwiniana.2014.481.36
N. Bacigalupo, E. R. Guaglianone, M. E. M. D. Romero
{"title":"Susana Crespo 7-VII-1928 - 30-V-2010","authors":"N. Bacigalupo, E. R. Guaglianone, M. E. M. D. Romero","doi":"10.14522/darwiniana.2014.481.36","DOIUrl":"https://doi.org/10.14522/darwiniana.2014.481.36","url":null,"abstract":"","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"36 1","pages":"113-114"},"PeriodicalIF":0.0,"publicationDate":"2015-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86704996","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 : 2015-02-27DOI: 10.14522/DARWINIANA.2014.381-2.160
C. C. Xifreda, A. M. Sanso
Morphological observations on pollen grains of Alvaradoa subovata Cronquist (Simaroubaceae) and Roupala brasiliensis Klotzch (Proteaceae) obtained from TEM complement previous studies of Xifreda & Sanso (1998). With the aim of giving details of the morphology and accuracy to the descriptive terminology, exine stratification is described and new observations on pollen grains obtained from SEM are added.
{"title":"Adenda y precisiones sobre la morfología polínica en Alvaradoa subovata (Simaroubaceae) y Roupala brasiliensis (Proteaceae)","authors":"C. C. Xifreda, A. M. Sanso","doi":"10.14522/DARWINIANA.2014.381-2.160","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.381-2.160","url":null,"abstract":"Morphological observations on pollen grains of Alvaradoa subovata Cronquist (Simaroubaceae) and Roupala brasiliensis Klotzch (Proteaceae) obtained from TEM complement previous studies of Xifreda & Sanso (1998). With the aim of giving details of the morphology and accuracy to the descriptive terminology, exine stratification is described and new observations on pollen grains obtained from SEM are added.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"1 1","pages":"43-45"},"PeriodicalIF":0.0,"publicationDate":"2015-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75834419","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 : 2015-02-27DOI: 10.14522/DARWINIANA.2014.383-4.166
S. Aliscioni
Paspalum L. has a large number of species with a wide morphological variability and extensive geographical distribution. Species of the genus grow in very diverse habitats, from humid or aquatic environments to dry places with clay or sandy soils, frequently saline. Given the diversity of habitats where the species of Paspalum occur, foliar anatomical characters were studied in order to explain different adaptative strategies. A description of the foliar anatomy of the genus is given, and several characters are discussed in relationship to the habitat.
{"title":"ANATOMÍA ECOLÓGICA DE ALGUNAS ESPECIES DEL GÉNERO PASPALUM (POACEAE, PANICOIDEAE, PANICEAE)","authors":"S. Aliscioni","doi":"10.14522/DARWINIANA.2014.383-4.166","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.383-4.166","url":null,"abstract":"Paspalum L. has a large number of species with a wide morphological variability and extensive geographical distribution. Species of the genus grow in very diverse habitats, from humid or aquatic environments to dry places with clay or sandy soils, frequently saline. Given the diversity of habitats where the species of Paspalum occur, foliar anatomical characters were studied in order to explain different adaptative strategies. A description of the foliar anatomy of the genus is given, and several characters are discussed in relationship to the habitat.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"228 1","pages":"187-207"},"PeriodicalIF":0.0,"publicationDate":"2015-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76991493","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 : 2015-01-01DOI: 10.14522/DARWINIANA.2015.31.645
P. Gonzáles, E. Navarro, M. Chanco, A. Cano
{"title":"Nototriche carabayensis (Malvaceae), a new species from the high Andes of Peru","authors":"P. Gonzáles, E. Navarro, M. Chanco, A. Cano","doi":"10.14522/DARWINIANA.2015.31.645","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2015.31.645","url":null,"abstract":"","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"1 1","pages":"108-113"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89164600","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 : 2014-12-31DOI: 10.14522/DARWINIANA.2014.22.584
Agostina B. Sassone, Silvia Arroyo-Leuenberger, Liliana M. Giussani
Based on morphological, anatomical, and phylogenetic studies within subfamily Allioideae, a new circumscription of tribe Leucocoryneae is presented including six American genera: Beauverdia , Ipheion , Leucocoryne , Nothoscordum , Tristagma and Zoellnerallium . A synopsis of tribe Leucocoryneae, comprising its description (as amended), a key to tribes, a key to genera within Leucocoryneae, genera descriptions and their geographical distribution are included.
{"title":"NUEVA CIRCUNSCRIPCION DE LA TRIBU LEUCOCORYNEAE (AMARYLLIDACEAE, ALLIOIDEAE)","authors":"Agostina B. Sassone, Silvia Arroyo-Leuenberger, Liliana M. Giussani","doi":"10.14522/DARWINIANA.2014.22.584","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.22.584","url":null,"abstract":"Based on morphological, anatomical, and phylogenetic studies within subfamily Allioideae, a new circumscription of tribe Leucocoryneae is presented including six American genera: Beauverdia , Ipheion , Leucocoryne , Nothoscordum , Tristagma and Zoellnerallium . A synopsis of tribe Leucocoryneae, comprising its description (as amended), a key to tribes, a key to genera within Leucocoryneae, genera descriptions and their geographical distribution are included.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"48 1","pages":"197-206"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88016916","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 : 2014-12-31DOI: 10.14522/DARWINIANA.2014.22.625
M. E. Múlgura, M. M. Ponce, R. Kiesling
{"title":"Encarnación Rosa Guaglianone (1932-2014)","authors":"M. E. Múlgura, M. M. Ponce, R. Kiesling","doi":"10.14522/DARWINIANA.2014.22.625","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.22.625","url":null,"abstract":"","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"42 1","pages":"284-289"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90268260","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 : 2014-12-31DOI: 10.14522/DARWINIANA/2014.22.602
M. A. Ganem, G. Giudice, O. Ahumada, M. L. Luna, Marcelo Arana
{"title":"First record of Asplenium harpeodes (Aspleniaceae) for the Argentinian flora","authors":"M. A. Ganem, G. Giudice, O. Ahumada, M. L. Luna, Marcelo Arana","doi":"10.14522/DARWINIANA/2014.22.602","DOIUrl":"https://doi.org/10.14522/DARWINIANA/2014.22.602","url":null,"abstract":"","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"13 1","pages":"237-242"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82770443","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 : 2014-12-31DOI: 10.14522/DARWINIANA.2014.22.602
M. A. Ganem, M. D. Arana, M. L. Luna, Osvaldo Ahumada, G. E. Giudice
Se da a conocer el primer hallazgo de Asplenium harpeodes para la Argentina. Esta especie crece en las provincias de Jujuy y Salta, en las Yungas. Se presenta la descripcion e ilustracion del taxon y se brindan datos de su distribucion y habitat. Se brinda una clave para diferenciar esta especie de las mas afines con lamina pinnada.
{"title":"PRIMER REGISTRO DE ASPLENIUM HARPEODES (ASPLENIACEAE) PARA LA FLORA ARGENTINA","authors":"M. A. Ganem, M. D. Arana, M. L. Luna, Osvaldo Ahumada, G. E. Giudice","doi":"10.14522/DARWINIANA.2014.22.602","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.22.602","url":null,"abstract":"Se da a conocer el primer hallazgo de Asplenium harpeodes para la Argentina. Esta especie crece en las provincias de Jujuy y Salta, en las Yungas. Se presenta la descripcion e ilustracion del taxon y se brindan datos de su distribucion y habitat. Se brinda una clave para diferenciar esta especie de las mas afines con lamina pinnada.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"121 1","pages":"237-242"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76125066","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 : 2014-12-31DOI: 10.14522/DARWINIANA.2014.22.622
D. Cacharani, Mario Ramos, O. G. Martínez
Cacharani, D. A.; M. Ramos & O. G. Martinez. Two new fern records from Northwestern Argentina. Darwiniana, nueva serie 2(2): 277-283. Adiantum peruvianum (Pteridaceae) and Serpocaulon polystichum (Polypodiaceae) are recorded for the first time for Argentina in this paper. These new records were collected during trips to La Caldera and Chicoana department in Salta province. The diagnostic characters are described and illustrated, a keys for identification of species and distribution map are provided.
{"title":"DOS NUEVOS REGISTROS DE HELECHOS PARA EL NOROESTE ARGENTINO","authors":"D. Cacharani, Mario Ramos, O. G. Martínez","doi":"10.14522/DARWINIANA.2014.22.622","DOIUrl":"https://doi.org/10.14522/DARWINIANA.2014.22.622","url":null,"abstract":"Cacharani, D. A.; M. Ramos & O. G. Martinez. Two new fern records from Northwestern Argentina. Darwiniana, nueva serie 2(2): 277-283. Adiantum peruvianum (Pteridaceae) and Serpocaulon polystichum (Polypodiaceae) are recorded for the first time for Argentina in this paper. These new records were collected during trips to La Caldera and Chicoana department in Salta province. The diagnostic characters are described and illustrated, a keys for identification of species and distribution map are provided.","PeriodicalId":39378,"journal":{"name":"Darwiniana","volume":"25 1","pages":"277-283"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83684512","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}
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