Sobre la presencia de Megalastrum substrigosum (Dryopteridaceae) en Argentina

Márquez, Gonzalo Javier; Yañez, Agustina; Kelly, Santiago Julián

doi:10.31055/1851.2372.v51.n4.16401

Cited by 5 publications

(5 citation statements)

References 4 publications

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“…Ongoing efforts to document fern and lycophyte diversity in the Yabotí Biosphere Reserve have recently included field trips to less-explored areas of the reserve, in efforts to document previously overlooked taxa (Kelly et al 2019). These expeditions have resulted in an improved understanding of the fern diversity of the area, and new records for Argentina have been discovered (Yañez et al 2011, Marquez et al 2016. The current contribution describes and illustrates a species of Amauropelta new to science and found in the core area (Parque Provincial Esmeralda) of Yabotí Biosphere Reserve.…”

Section: Uncinellamentioning

confidence: 86%

Amauropelta yabotiensis (Thelypteridaceae), a new species from Biosphere Yabotí Reserve (Misiones, Argentina) and its taxonomic relationships

Yañez

Márquez

Terraza

et al. 2022

An. Acad. Bras. Ciênc.

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The Yabotí Biosphere Reserve (Prov. Misiones, Argentina) with 221,155 ha, represents one of the southernmost relicts of the Paranaense forest. Currently, a project is being developed in the area to inventory and describe the ferns and lycophytes. As a result of these studies, we identify a new species of Amauropelta, A. yabotiensis. Within this genus, it belongs to the group of species with uncinate hairs and presents a unique combination of diagnostic features, including the type of pubescence on the rhizome scales, the shape of the fronds and segments and type of venation. Here, we described and illustrated the species and we analyzed its taxonomic affi nities and geographic distribution. Additionally, we provided a distribution map and a key to distinguish it from other Amauropelta species from Misiones province. With this new fi nding, we highlighted the importance of the Yabotí Reserve as a reservoir of biodiversity in the region.

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Section: Uncinellamentioning

confidence: 86%

Amauropelta yabotiensis (Thelypteridaceae), a new species from Biosphere Yabotí Reserve (Misiones, Argentina) and its taxonomic relationships

Yañez

Márquez

Terraza

et al. 2022

An. Acad. Bras. Ciênc.

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“…As part of a broader study, whose objective is to study the diversity of ferns and lycophytes in the Paranaense forest with emphasis on the protected areas of northeastern Argentina (Marquez et al 2016(Marquez et al , 2020Kelly et al 2019;Yañez et al 2022), Pteris ensiformis is recorded for the first time in the country, growing in the province of Misiones. In the present work the populations found are documented, the species is illustrated, and a key is provided to distinguish it from the Pteris species from Argentina.…”

Section: Introductionmentioning

confidence: 99%

The exotic species Pteris ensiformis (Pteridaceae) in South America: an aproach to naturalization process

Yañez,

Marquez,

Vignale

et al. 2023

Rodriguésia

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Pteris has numerous representatives of Asian and Oceanic origin naturalized in America, some of them recognized as invasive weeds. Pteris ensiformis was introduced in America in the middle of the 19th century and subsequently naturalized in USA and Central America, but the records of its distribution in South America are isolated and the establishment or naturalization of the populations is unclear. As part of a broader study whose objective is to review the diversity of ferns and lycophytes in the Paranaense forest P. ensiformis was found for the first time in Argentina. In addition to describing, illustrating, and distinguishing the species from other species of the genus in the country, we review the distribution of P. ensiformis in South America comparing herbarium collections and iNaturalist observations, a citizen science platform. Additionally, a status for the species is proposed or suggested in each country where it is registered according to its stage of the naturalization process.

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“…Much of the potential utility in measuring spore size remains unexplored. Furthermore, there is virtually no quantitative data on the shape of fern spores in the existing literature except for the diameters (Nayar & Devi 1964;Marquez 2010;Silva et al 2019;Pérez-Jiménez et al 2020). Spore size, as it has been represented until now, conflates size and shape because of the common practice of providing the measurement of only one dimension per spore.…”

Section: Introductionmentioning

confidence: 99%

Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America

Gorrer

2023

Rodriguésia

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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.

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Sobre la presencia de Megalastrum substrigosum (Dryopteridaceae) en Argentina

Cited by 5 publications

References 4 publications

Amauropelta yabotiensis (Thelypteridaceae), a new species from Biosphere Yabotí Reserve (Misiones, Argentina) and its taxonomic relationships

Amauropelta yabotiensis (Thelypteridaceae), a new species from Biosphere Yabotí Reserve (Misiones, Argentina) and its taxonomic relationships

The exotic species Pteris ensiformis (Pteridaceae) in South America: an aproach to naturalization process

Palynomorphometry in ferns: Ctenitis (Dryopteridaceae), a case of study in the Southern Cone of America

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