A review of the genus Semele (Ruscaceae) systematics in Madeira
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.13/3187 |
Resumo: | The present study attempts to review the systematics of Semele (Ruscaceae) in Madeira, based on phenotypic diversity. The variation in some vegetative (climbing shoot, second-order branches or ‘phylloclades’) and sexual (inflorescence and flowers) characters was analysed in 115 plant specimens from 30 field populations, herbaria of the Costa collection and Madeira Botanical Garden (MADJ) and certain gardens. Thirty-one quantitative and qualitative characters have been utilized in the analysis. Kaiser–Meyer–Olkin (KMO) analysis indicates adequate sampling. Principal component analysis (PCA) reveals that the spatial distribution of individuals has a discontinuous behaviour. Principal coordinate analysis (PCO) utilizing the Gower coefficient on standardized data revealed a significantly discontinuous distribution of individuals, such that two different clusters can be defined. The Student’s t-test and Tukey test on separate characters, when individuals were classified according to the Costa classification, confirms the significant differences between grouping accessions. This leads to the recognition of two species within the genus in Madeira. Literature and herbarium studies show that these two taxa are conspecific with Semele androgyna (L.) Kunth sensu stricto (s.s.) and Semele menezesi Costa sensu lato (s.l.). A separated statistical analysis of the S. androgyna cluster shows the possible existence of additional subgroups. Based on field population distribution, ecological behaviour and variation in features, we propose the recognition of two species, S. androgyna (L.) Kunth and S. menezesi (Costa) Pinheiro de Carvalho, and two subspecies S. androgyna (L.) Kunth androgyna Pinheiro de Carvalho and S. androgyna (L.) Kunth pterygophora Pinheiro de Carvalho. |
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A review of the genus Semele (Ruscaceae) systematics in MadeiraMorphological variationSemele androgynaS. menezesiSpecies differentiationMadeira (Portugal).Faculdade de Ciências da VidaThe present study attempts to review the systematics of Semele (Ruscaceae) in Madeira, based on phenotypic diversity. The variation in some vegetative (climbing shoot, second-order branches or ‘phylloclades’) and sexual (inflorescence and flowers) characters was analysed in 115 plant specimens from 30 field populations, herbaria of the Costa collection and Madeira Botanical Garden (MADJ) and certain gardens. Thirty-one quantitative and qualitative characters have been utilized in the analysis. Kaiser–Meyer–Olkin (KMO) analysis indicates adequate sampling. Principal component analysis (PCA) reveals that the spatial distribution of individuals has a discontinuous behaviour. Principal coordinate analysis (PCO) utilizing the Gower coefficient on standardized data revealed a significantly discontinuous distribution of individuals, such that two different clusters can be defined. The Student’s t-test and Tukey test on separate characters, when individuals were classified according to the Costa classification, confirms the significant differences between grouping accessions. This leads to the recognition of two species within the genus in Madeira. Literature and herbarium studies show that these two taxa are conspecific with Semele androgyna (L.) Kunth sensu stricto (s.s.) and Semele menezesi Costa sensu lato (s.l.). A separated statistical analysis of the S. androgyna cluster shows the possible existence of additional subgroups. Based on field population distribution, ecological behaviour and variation in features, we propose the recognition of two species, S. androgyna (L.) Kunth and S. menezesi (Costa) Pinheiro de Carvalho, and two subspecies S. androgyna (L.) Kunth androgyna Pinheiro de Carvalho and S. androgyna (L.) Kunth pterygophora Pinheiro de Carvalho.The authors are grateful to Mr Francisco Fernandes, Madeira Botanical Garden, Priest Nóbrega and Mr Rogério Correia for help in the monitoring of plant populations and fieldwork and to Dr Grahm Queen curator of MADM herbarium for access to the Costa herbarium collection. This work has been financially supported by FCT (Portuguese Foundation for Science and Technology) and PRAXIS XXI, through the CEM (Centre for Macaronesian Studies) and CRUP (Dean Council of Portuguese University)/British Council.Linnean Society of LondonDigitUMaCarvalho, Miguel Ângelo Almeida Pinheiro deWilcock, Christopher CharlesSantos, Teresa Maria Marques dosLucas, Iolanda Catarina ValeGanança, José Filipe TeixeiraFranco, EmanuelThangadurai, DevarajanRao, Doulathabad MuralidharaSousa, Nélia Freitas2021-03-19T13:03:53Z2004-01-01T00:00:00Z2004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/3187engCarvalho, M. A. A. P., Wilcock, C. C., Santos, T. M., Lucas, I. C. V., Ganança, J. F. T., Franco, Emanuel, ... & Sousa, N. F. (2004). A review of the genus Semele (Ruscaceae) systematics in Madeira. Botanical Journal of the Linnean Society, 146(4), 483-497. 10.1111/j.1095-8339.2004.00351.x10.1111/j.1095-8339.2004.00351.xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T12:56:07Zoai:digituma.uma.pt:10400.13/3187Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:06:08.317771Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
title |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
spellingShingle |
A review of the genus Semele (Ruscaceae) systematics in Madeira Carvalho, Miguel Ângelo Almeida Pinheiro de Morphological variation Semele androgyna S. menezesi Species differentiation Madeira (Portugal) . Faculdade de Ciências da Vida |
title_short |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
title_full |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
title_fullStr |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
title_full_unstemmed |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
title_sort |
A review of the genus Semele (Ruscaceae) systematics in Madeira |
author |
Carvalho, Miguel Ângelo Almeida Pinheiro de |
author_facet |
Carvalho, Miguel Ângelo Almeida Pinheiro de Wilcock, Christopher Charles Santos, Teresa Maria Marques dos Lucas, Iolanda Catarina Vale Ganança, José Filipe Teixeira Franco, Emanuel Thangadurai, Devarajan Rao, Doulathabad Muralidhara Sousa, Nélia Freitas |
author_role |
author |
author2 |
Wilcock, Christopher Charles Santos, Teresa Maria Marques dos Lucas, Iolanda Catarina Vale Ganança, José Filipe Teixeira Franco, Emanuel Thangadurai, Devarajan Rao, Doulathabad Muralidhara Sousa, Nélia Freitas |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
DigitUMa |
dc.contributor.author.fl_str_mv |
Carvalho, Miguel Ângelo Almeida Pinheiro de Wilcock, Christopher Charles Santos, Teresa Maria Marques dos Lucas, Iolanda Catarina Vale Ganança, José Filipe Teixeira Franco, Emanuel Thangadurai, Devarajan Rao, Doulathabad Muralidhara Sousa, Nélia Freitas |
dc.subject.por.fl_str_mv |
Morphological variation Semele androgyna S. menezesi Species differentiation Madeira (Portugal) . Faculdade de Ciências da Vida |
topic |
Morphological variation Semele androgyna S. menezesi Species differentiation Madeira (Portugal) . Faculdade de Ciências da Vida |
description |
The present study attempts to review the systematics of Semele (Ruscaceae) in Madeira, based on phenotypic diversity. The variation in some vegetative (climbing shoot, second-order branches or ‘phylloclades’) and sexual (inflorescence and flowers) characters was analysed in 115 plant specimens from 30 field populations, herbaria of the Costa collection and Madeira Botanical Garden (MADJ) and certain gardens. Thirty-one quantitative and qualitative characters have been utilized in the analysis. Kaiser–Meyer–Olkin (KMO) analysis indicates adequate sampling. Principal component analysis (PCA) reveals that the spatial distribution of individuals has a discontinuous behaviour. Principal coordinate analysis (PCO) utilizing the Gower coefficient on standardized data revealed a significantly discontinuous distribution of individuals, such that two different clusters can be defined. The Student’s t-test and Tukey test on separate characters, when individuals were classified according to the Costa classification, confirms the significant differences between grouping accessions. This leads to the recognition of two species within the genus in Madeira. Literature and herbarium studies show that these two taxa are conspecific with Semele androgyna (L.) Kunth sensu stricto (s.s.) and Semele menezesi Costa sensu lato (s.l.). A separated statistical analysis of the S. androgyna cluster shows the possible existence of additional subgroups. Based on field population distribution, ecological behaviour and variation in features, we propose the recognition of two species, S. androgyna (L.) Kunth and S. menezesi (Costa) Pinheiro de Carvalho, and two subspecies S. androgyna (L.) Kunth androgyna Pinheiro de Carvalho and S. androgyna (L.) Kunth pterygophora Pinheiro de Carvalho. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01T00:00:00Z 2004-01-01T00:00:00Z 2021-03-19T13:03:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.13/3187 |
url |
http://hdl.handle.net/10400.13/3187 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carvalho, M. A. A. P., Wilcock, C. C., Santos, T. M., Lucas, I. C. V., Ganança, J. F. T., Franco, Emanuel, ... & Sousa, N. F. (2004). A review of the genus Semele (Ruscaceae) systematics in Madeira. Botanical Journal of the Linnean Society, 146(4), 483-497. 10.1111/j.1095-8339.2004.00351.x 10.1111/j.1095-8339.2004.00351.x |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Linnean Society of London |
publisher.none.fl_str_mv |
Linnean Society of London |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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