Éditorial

Henriot, Carine; Schäfer, Valérie

doi:10.3917/flux1.127.0001

Cited by 1 publication

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“…The protocol and terminology followed Prada et al (2016), Molino et al (2020) and Wal et al (2021). Spores and sporangia were mounted directly in water, imaged under the optical microscope and measured with the Piximètre software (Henriot and Cheype 2022). We measured at least 30 spores from three different individuals of the two varieties, excluding the perispore and at least three sporangia from three different individuals of the two taxa.…”

Section: Methodsmentioning

confidence: 99%

Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

Molino

Lafuente

Rouhan

2022

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Under the current treatment of the Blechnaceae, only one species of the fern genus Parablechnum is recognised in the western Indian Ocean, often referred to as P. marginatum. Two varieties are currently recognised within it: a type variety present in the Mascarene Islands of Réunion and Mauritius and P. marginatum var. humbertii in Madagascar. Recent molecular evidence suggested that these two varieties are not closely related, questioning their conspecific status. To collect further evidence to support a taxonomic decision, we performed a morphological study based on 57 herbarium specimens comparing traits from general morphology, cross section of the fertile pinnae, sporangia and spores. As a result, Malagasy specimens can be distinguished morphologically from the Mascarene ones by pinna apex and pinna section, the presence of sporangiasters and spore ornamentation. Additionally, spore size analyses resulted in statistically significant differences between both varieties. Our results, aligned with the available phylogenetic data, support that these two taxa should be recognised as separate species and, hence, we propose the necessary new combination and provide full descriptions.

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Section: Methodsmentioning

confidence: 99%

Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

Molino

Lafuente

Rouhan

2022

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Éditorial

Abstract: Distribution électronique Cairn.info pour Université Gustave Eiffel. © Université Gustave Eiffel. Tous droits réservés pour tous pays.

Cited by 1 publication

References 5 publications

Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

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Éditorial

Abstract: Distribution électronique Cairn.info pour Université Gustave Eiffel. © Université Gustave Eiffel. Tous droits réservés pour tous pays.

Cited by 1 publication

References 5 publications

﻿Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

﻿Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

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Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)

Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae)