Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America
Abstract Pseudognaphalium Kirp. (Asteraceae, Gnaphalieae) consist of about 60 species mainly distributed in South, Central, and North America. As a first contribution toward a comprehensive taxonomic review of Pseudognaphalium, we perform here the first morphometric analysis of North American specie...
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Academia Brasileira de Ciências
2022-11-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000600807&tlng=en |
| _version_ | 1798013772829294592 |
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| author | SUSANA E. FREIRE MARIANA A. GROSSI NÉSTOR D. BAYÓN CLAUDIA MONTI |
| author_facet | SUSANA E. FREIRE MARIANA A. GROSSI NÉSTOR D. BAYÓN CLAUDIA MONTI |
| author_sort | SUSANA E. FREIRE |
| collection | DOAJ |
| description | Abstract Pseudognaphalium Kirp. (Asteraceae, Gnaphalieae) consist of about 60 species mainly distributed in South, Central, and North America. As a first contribution toward a comprehensive taxonomic review of Pseudognaphalium, we perform here the first morphometric analysis of North American species, using UPGMA method for the construction of the dendrogram. Based upon these results we present a synopsis including a key to identify species and their associated synonymy. Thirty-seven species are recognized, two taxa are newly synonymized, Pseudognaphalium microcephalum under the name P. canescens and Pseudognaphalium semilanatum under the name P. semiamplexicaule, and two other names are confirmed as synonyms as previously proposed, Pseudognaphalium micradenium as a synonym of P. helleri and Pseudognaphalium crenatum as a synonym of P. viscosum. Lectotypes are newly designated for Gnaphalium beneolens, G. berlandieri (= Pseudognaphalium stramineum), Gnaphalium decurrens (= Pseudognaphalium macounii), G. leucocephalum, G. oxyphyllum, G. oxyphyllum var. semilanatum (= P. semiamplexicaule), G. semiamplexicaule, G. sulphurescens (= P. stramineum), G. thermale, and second-step lectotypifications are proposed for G. helleri and G. wrightii (= P. canescens). In addition, the first illustrations of Pseudognaphalium helleri and P. semiamplexicaule, and a colour figure of P. canescens and P. beneolens emphasizing the results of the morphometric analysis are provided. |
| first_indexed | 2024-04-11T15:07:57Z |
| format | Article |
| id | doaj.art-0ec5ac03e8b34504b7e437d97e25626e |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-04-11T15:07:57Z |
| publishDate | 2022-11-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-0ec5ac03e8b34504b7e437d97e25626e2022-12-22T04:16:44ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902022-11-0194410.1590/0001-3765202220200082Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North AmericaSUSANA E. FREIREhttps://orcid.org/0000-0001-7141-8058MARIANA A. GROSSIhttps://orcid.org/0000-0002-9837-9156NÉSTOR D. BAYÓNhttps://orcid.org/0000-0003-1446-129XCLAUDIA MONTIhttps://orcid.org/0000-0002-9461-6708Abstract Pseudognaphalium Kirp. (Asteraceae, Gnaphalieae) consist of about 60 species mainly distributed in South, Central, and North America. As a first contribution toward a comprehensive taxonomic review of Pseudognaphalium, we perform here the first morphometric analysis of North American species, using UPGMA method for the construction of the dendrogram. Based upon these results we present a synopsis including a key to identify species and their associated synonymy. Thirty-seven species are recognized, two taxa are newly synonymized, Pseudognaphalium microcephalum under the name P. canescens and Pseudognaphalium semilanatum under the name P. semiamplexicaule, and two other names are confirmed as synonyms as previously proposed, Pseudognaphalium micradenium as a synonym of P. helleri and Pseudognaphalium crenatum as a synonym of P. viscosum. Lectotypes are newly designated for Gnaphalium beneolens, G. berlandieri (= Pseudognaphalium stramineum), Gnaphalium decurrens (= Pseudognaphalium macounii), G. leucocephalum, G. oxyphyllum, G. oxyphyllum var. semilanatum (= P. semiamplexicaule), G. semiamplexicaule, G. sulphurescens (= P. stramineum), G. thermale, and second-step lectotypifications are proposed for G. helleri and G. wrightii (= P. canescens). In addition, the first illustrations of Pseudognaphalium helleri and P. semiamplexicaule, and a colour figure of P. canescens and P. beneolens emphasizing the results of the morphometric analysis are provided.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000600807&tlng=enCluster analysis/UPGMA dendrogramcompositaemorphologypheneticstaxonomy |
| spellingShingle | SUSANA E. FREIRE MARIANA A. GROSSI NÉSTOR D. BAYÓN CLAUDIA MONTI Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America Anais da Academia Brasileira de Ciências Cluster analysis/UPGMA dendrogram compositae morphology phenetics taxonomy |
| title | Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America |
| title_full | Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America |
| title_fullStr | Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America |
| title_full_unstemmed | Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America |
| title_short | Morphometric Analysis and Synopsis of Pseudognaphalium (Gnaphalieae, Asteraceae) in North America |
| title_sort | morphometric analysis and synopsis of pseudognaphalium gnaphalieae asteraceae in north america |
| topic | Cluster analysis/UPGMA dendrogram compositae morphology phenetics taxonomy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000600807&tlng=en |
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