The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)

Lepidaploa belongs to the Vernonieae tribe, one of the most complex tribes of Asteraceae. Nowadays, the relationship between Lepidaploa and its related genera is poorly understood. Different microcharacters might be of great taxonomic value and may be used in the identification of different taxonomi...

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Detalles Bibliográficos
Autores principales: Marques, Danilo, Ângulo, María Betiana, Nakajima, Jimi Naoki, Dematteis, Massimiliano
Formato: Artículo
Lenguaje:Inglés
Publicado: John Wiley & Sons Ltd 2021
Materias:
Anthers
Crystals
Cypselae
Idioblasts
Phyllaries
Style
Trichome
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/28314
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-28314
record_format dspace
spelling I48-R184-123456789-283142025-03-06T11:10:19Z The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae) Marques, Danilo Ângulo, María Betiana Nakajima, Jimi Naoki Dematteis, Massimiliano Anthers Crystals Cypselae Idioblasts Phyllaries Style Trichome Lepidaploa belongs to the Vernonieae tribe, one of the most complex tribes of Asteraceae. Nowadays, the relationship between Lepidaploa and its related genera is poorly understood. Different microcharacters might be of great taxonomic value and may be used in the identification of different taxonomic categories. The morphology of the microcharacters of phyllaries, florets and cypselae was analysed in detail for the first time in species of Lepidaploa to evaluate their reliability as taxonomic markers. The results were also discussed in relation to other closely related genera of the Vernonieae tribe. Microcharacters of 23 species were studied using stereo, light, and scanning electron microscopy. Lepidaploa displays high variety of microcharacters, such as trichome types and crystals. Eight trichome types (non?glandular and glandular trichomes) were observed on phyllaries, florets and cypselae. The combination of these trichome types on the different structures, as well as crystals, basal stylar node and idioblasts are taxonomically important to differentiate related species. Glandular apical appendage was observed only in L. pseudomuricata. This study demonstrates that the combination of floral microcharacters is valuable within genera to differentiate related species. However, they are of little utility to distinguish closely related genera. 2021-08-05T18:46:51Z 2021-08-05T18:46:51Z 2018-05-02 Artículo Marques, Danilo, et al., 2018. The taxonomic utility of micromorphology in Lepidaploa (vernonieae: asteraceae). Nordic Journal of Botany. Londres: John Wiley & Sons Ltd, vol, 36, no. 9, p. 1-17. http://repositorio.unne.edu.ar/handle/123456789/28314 eng https://doi.org/10.1111/njb.01686 https://onlinelibrary.wiley.com/doi/10.1111/njb.01686 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf John Wiley & Sons Ltd p. 1-17
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Anthers
Crystals
Cypselae
Idioblasts
Phyllaries
Style
Trichome
spellingShingle Anthers
Crystals
Cypselae
Idioblasts
Phyllaries
Style
Trichome
Marques, Danilo
Ângulo, María Betiana
Nakajima, Jimi Naoki
Dematteis, Massimiliano
The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
topic_facet Anthers
Crystals
Cypselae
Idioblasts
Phyllaries
Style
Trichome
description Lepidaploa belongs to the Vernonieae tribe, one of the most complex tribes of Asteraceae. Nowadays, the relationship between Lepidaploa and its related genera is poorly understood. Different microcharacters might be of great taxonomic value and may be used in the identification of different taxonomic categories. The morphology of the microcharacters of phyllaries, florets and cypselae was analysed in detail for the first time in species of Lepidaploa to evaluate their reliability as taxonomic markers. The results were also discussed in relation to other closely related genera of the Vernonieae tribe. Microcharacters of 23 species were studied using stereo, light, and scanning electron microscopy. Lepidaploa displays high variety of microcharacters, such as trichome types and crystals. Eight trichome types (non?glandular and glandular trichomes) were observed on phyllaries, florets and cypselae. The combination of these trichome types on the different structures, as well as crystals, basal stylar node and idioblasts are taxonomically important to differentiate related species. Glandular apical appendage was observed only in L. pseudomuricata. This study demonstrates that the combination of floral microcharacters is valuable within genera to differentiate related species. However, they are of little utility to distinguish closely related genera.
format Artículo
author Marques, Danilo
Ângulo, María Betiana
Nakajima, Jimi Naoki
Dematteis, Massimiliano
author_facet Marques, Danilo
Ângulo, María Betiana
Nakajima, Jimi Naoki
Dematteis, Massimiliano
author_sort Marques, Danilo
title The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
title_short The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
title_full The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
title_fullStr The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
title_full_unstemmed The taxonomic utility of micromorphology in Lepidaploa (Vernonieae: Asteraceae)
title_sort taxonomic utility of micromorphology in lepidaploa (vernonieae: asteraceae)
publisher John Wiley & Sons Ltd
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/28314
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