Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae)
Senecio pauciflorus and S. indecorus (= Packera pauciflora and P. indecora ) are autogamous, high polyploid species with similar geographic ranges in North America. Their east‐west distribution pattern including a disjunction in California is unusual within the aureoid Senecio complex and may provid...
Published in: | Nordic Journal of Botany |
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crwiley:10.1111/j.1756-1051.1994.tb00584.x 2023-12-03T10:17:46+01:00 Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) Bain, John F. Whitton, Jeannette 1994 http://dx.doi.org/10.1111/j.1756-1051.1994.tb00584.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1994.tb00584.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1994.tb00584.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 14, issue 2, page 193-199 ISSN 0107-055X 1756-1051 Plant Science Ecology, Evolution, Behavior and Systematics journal-article 1994 crwiley https://doi.org/10.1111/j.1756-1051.1994.tb00584.x 2023-11-09T13:58:44Z Senecio pauciflorus and S. indecorus (= Packera pauciflora and P. indecora ) are autogamous, high polyploid species with similar geographic ranges in North America. Their east‐west distribution pattern including a disjunction in California is unusual within the aureoid Senecio complex and may provide insights into the origins of the aureoid complex. Taxonomic treatment of the two taxa has varied in the past due to the similarity and variability of the taxa. Results of morphological analyses of 192 herbarium specimens show that the taxa are best treated as two distinct species and that infraspecifìc variation is not related to geographical distribution. Separation of taxa remains difficult. California specimens are the most difficult to classify and may represent the ancestral group. Based on morphology and chromosome number it is suggested that the 5. pauciflorus‐S. indecorus group may have originated from the arctic‐alpine aureoid group including S. cymbalaria . Article in Journal/Newspaper Arctic Wiley Online Library (via Crossref) Arctic Nordic Journal of Botany 14 2 193 199 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology, Evolution, Behavior and Systematics Bain, John F. Whitton, Jeannette Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
topic_facet |
Plant Science Ecology, Evolution, Behavior and Systematics |
description |
Senecio pauciflorus and S. indecorus (= Packera pauciflora and P. indecora ) are autogamous, high polyploid species with similar geographic ranges in North America. Their east‐west distribution pattern including a disjunction in California is unusual within the aureoid Senecio complex and may provide insights into the origins of the aureoid complex. Taxonomic treatment of the two taxa has varied in the past due to the similarity and variability of the taxa. Results of morphological analyses of 192 herbarium specimens show that the taxa are best treated as two distinct species and that infraspecifìc variation is not related to geographical distribution. Separation of taxa remains difficult. California specimens are the most difficult to classify and may represent the ancestral group. Based on morphology and chromosome number it is suggested that the 5. pauciflorus‐S. indecorus group may have originated from the arctic‐alpine aureoid group including S. cymbalaria . |
format |
Article in Journal/Newspaper |
author |
Bain, John F. Whitton, Jeannette |
author_facet |
Bain, John F. Whitton, Jeannette |
author_sort |
Bain, John F. |
title |
Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
title_short |
Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
title_full |
Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
title_fullStr |
Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
title_full_unstemmed |
Taxonomìc analysis of Senecio pauciflorus and S. indecorus (Asteraceae) |
title_sort |
taxonomìc analysis of senecio pauciflorus and s. indecorus (asteraceae) |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1994.tb00584.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1994.tb00584.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1994.tb00584.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Nordic Journal of Botany volume 14, issue 2, page 193-199 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1994.tb00584.x |
container_title |
Nordic Journal of Botany |
container_volume |
14 |
container_issue |
2 |
container_start_page |
193 |
op_container_end_page |
199 |
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1784264724402143232 |