Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America
Abstract The morphometric knowledge about the spores of the Ctenitis has not yet been deepened. Considering the folded spores of this genus which inhabit the Southern Cone of America the aims were to increase infrageneric knowledge, to evaluate the relationship among the morphometric characters of t...
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| Format: | Article |
| Language: | English |
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Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2023-12-01
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| Series: | Rodriguésia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602023000101706&tlng=en |
| _version_ | 1827595514524205056 |
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| author | Daniel Alejandro Gorrer |
| author_facet | Daniel Alejandro Gorrer |
| author_sort | Daniel Alejandro Gorrer |
| collection | DOAJ |
| description | Abstract The morphometric knowledge about the spores of the Ctenitis has not yet been deepened. Considering the folded spores of this genus which inhabit the Southern Cone of America the aims were to increase infrageneric knowledge, to evaluate the relationship among the morphometric characters of the folded spores in these Ctenitis species and to verify the spore’s morphometry as a taxonomic tool. This study was performed with herbarium material. The spores were analyzed with light microscopy (LM) and scanning electron microscopy (SEM). The variables analyzed were: major and minor equatorial diameter, polar diameter, length of the laesura and length, width and height of the folds. The test chosen to analyze the study variables was ANOVA. Four spore sets are proposed. The “elongate-type” is made up of C. aspidioides and C. nervata. The “medium-type” is made up of C. anniesii, C. distans, C. falciculata and C. paranaensis. The “handle shape-type” is represented by C. bigarellae, C. eriocaulis and C. submarginalis. Finally, the “short-type”, consists only of C. deflexa. The morphometric data of spores together with the statistical analysis provided useful information for the distinction of some Ctenitis species studied in the Southern Cone of America. These results contribute to the studies aeropalynologycal and palaeopalynological. |
| first_indexed | 2024-03-09T02:55:38Z |
| format | Article |
| id | doaj.art-f83d2aa88b364593863f1a7a50d04b51 |
| institution | Directory Open Access Journal |
| issn | 2175-7860 |
| language | English |
| last_indexed | 2024-03-09T02:55:38Z |
| publishDate | 2023-12-01 |
| publisher | Instituto de Pesquisas Jardim Botânico do Rio de Janeiro |
| record_format | Article |
| series | Rodriguésia |
| spelling | doaj.art-f83d2aa88b364593863f1a7a50d04b512023-12-05T07:47:21ZengInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia2175-78602023-12-017410.1590/2175-7860202374071Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of AmericaDaniel Alejandro Gorrerhttps://orcid.org/0000-0002-9360-5089Abstract The morphometric knowledge about the spores of the Ctenitis has not yet been deepened. Considering the folded spores of this genus which inhabit the Southern Cone of America the aims were to increase infrageneric knowledge, to evaluate the relationship among the morphometric characters of the folded spores in these Ctenitis species and to verify the spore’s morphometry as a taxonomic tool. This study was performed with herbarium material. The spores were analyzed with light microscopy (LM) and scanning electron microscopy (SEM). The variables analyzed were: major and minor equatorial diameter, polar diameter, length of the laesura and length, width and height of the folds. The test chosen to analyze the study variables was ANOVA. Four spore sets are proposed. The “elongate-type” is made up of C. aspidioides and C. nervata. The “medium-type” is made up of C. anniesii, C. distans, C. falciculata and C. paranaensis. The “handle shape-type” is represented by C. bigarellae, C. eriocaulis and C. submarginalis. Finally, the “short-type”, consists only of C. deflexa. The morphometric data of spores together with the statistical analysis provided useful information for the distinction of some Ctenitis species studied in the Southern Cone of America. These results contribute to the studies aeropalynologycal and palaeopalynological.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602023000101706&tlng=enCtenitisfernsmorphometrypalinologyspore morphology |
| spellingShingle | Daniel Alejandro Gorrer Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America Rodriguésia Ctenitis ferns morphometry palinology spore morphology |
| title | Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America |
| title_full | Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America |
| title_fullStr | Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America |
| title_full_unstemmed | Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America |
| title_short | Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America |
| title_sort | palynomorphometry in ferns ctenitis dryopteridaceae a case of study in the southern cone of america |
| topic | Ctenitis ferns morphometry palinology spore morphology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602023000101706&tlng=en |
| work_keys_str_mv | AT danielalejandrogorrer palynomorphometryinfernsctenitisdryopteridaceaeacaseofstudyinthesouthernconeofamerica |