Leaf midrib outline as a diagnostic character for taxonomy in Anthurium section Urospadix subsection Flavescentiviridia (Araceae)

Mantovani, André; Pereira, Thaís Estefani; Coelho, Marcus A. Nadruz

doi:10.1590/s2236-89062009000200005

Cited by 15 publications

(9 citation statements)

References 14 publications

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“…Já Mantovani & Pereira (2005), trabalhando com nove espécies de Anthurium da seção Urospadix subseção Flavescentiviridia, comparam a anatomia de folha e espata revelando maior potencialidade da espata em gerar caracteres diagnósticos para taxonomia de Anthurium. Por fim, Mantovani et al (2009) avaliaram a variação da morfologia da nervura central ao longo da lâmina foliar como caráter diagnóstico para a taxonomia de Anthurium.…”

Section: Introductionunclassified

Anatomia comparada da folha e espata de espécies de Anthurium (Araceae) ocorrentes na Mata Atlântica

2010

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-(Comparative anatomy of leaf and spathe of Anthurium (Araceae) species from the Atlantic Rain Forest). Leaf and spathe anatomy of nine species of the genus Anthurium (sections Urospadix and Leptanthurium) were analyzed. Plant material was collected from different locations in Brazil and cultivated under identical conditions in the Instituto de Pesquisas Jardim Botânico do Rio de Janeiro. Our objective was to evaluate the diagnostic potential of leaf and spathe anatomy for taxonomic purposes. Leaves presented smooth and striated cuticle, epidermal cells randomly disposed, raised and non-raised stomata, epidermal glands, periclinal divisions of epidermal cells, raphides, druses, carotene and diosmin crystals, palisade parenchyma on the adaxial surface of the midrib and sclerenchymatic fibre sheath in the bundle. The spathes also presented smooth and striated cuticle, epidermal cells in parallel rows, raised and non-raised stomata, epidermal glands, raphides, druses and flavonoidic crystals, uniform mesophyll, and presence of sclerenchyma as fibre caps associated to the vascular bundles. The Anthurium species have differences between leaves and spathes based on anatomical characters, but clustering analysis did not separate the species from different sections. Results indicate that spathe can give a better resolution than leaves for segregation of species groups in Anthurium.Key words -Leptanthurium, taxonomy, Urospadix RESUMO -(Anatomia comparada da folha e espata de espécies de Anthurium (Araceae) ocorrentes na Mata Atlântica). São apresentados dados relativos à anatomia da lâmina foliar e espata de nove espécies do gênero Anthurium (seções Urospadix e Leptanthurium). Os indivíduos foram coletados em diversas partes do Brasil e aclimatados no Instituto de Pesquisas Jardim Botânico do Rio de Janeiro. O objetivo deste estudo foi comparar as características anatômicas da lâmina foliar e da espata, detectando caracteres que sejam potenciais para subsidiar e contribuir aos estudos taxonômicos do gênero Anthurium. Observa-se nas folhas a presença tanto de cutícula lisa quanto estriada, células epidérmicas dispostas ao acaso, estômatos no mesmo nível das demais células da epiderme ou elevados, glândulas epidérmicas e divisões periclinais em células epidérmicas, além de ráfides, drusas, cristais de caroteno e diosmina, parênquima paliçádico na face adaxial da nervura central e bainha de fibras esclerenquimáticas nos feixes. Quanto à espata observa-se cutícula lisa e estriada, células epidérmicas ordenadas de forma paralela, estômatos no mesmo nível das demais células da epiderme ou elevados, glândulas epidérmicas, ráfides, drusas e cristais de natureza flavonoídica; o mesofilo é uniforme, apresentando apenas calotas de fibras associadas aos feixes vasculares, quando não ausentes. As espécies de Anthurium avaliadas mostraram-se distintas quanto à anatomia de folha e espata, mas as análises de agrupamento não permitiram separar espécies de acordo com a respectiva seção. Os resultados indicam ser a espata a estrut...

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Section: Introductionunclassified

Anatomia comparada da folha e espata de espécies de Anthurium (Araceae) ocorrentes na Mata Atlântica

2010

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“…Three accessions with moderate primary vein size have larger leaves compared to other accession. Primary vein characteristics are used to described and classify morphologically similar leaves of some species like Podocarpus (Salvaña et al 2018) and subsections of Anthurium (Mantovani et al 2009). Moreover, venation patterns are indeed significant features for the classification and even tracing the evolution of angiosperms since these are relatively stable at the species level.…”

Section: Resultsmentioning

confidence: 99%

Delineation of the selected Cucumis L. species and accessions using leaf architecture characters

Masungsong

Belarmino²,

Buot

2019

Biodiversitas

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Abstract. Masungsong LA, Belarmino MM, Buot IEJr. 2019. Delineation of the selected Cucumis L. species and accessions using leaf architecture characters. Biodiversitas 20: 629-635. Regardless of the several attempts of the early and recent studies to separate the wild species of Cucumis from the cultivated ones, there is still taxonomic confusion brought about by the similarities in morphology of the genus. In a gene bank with so many species and accessions of Cucumis stored, it is appropriate to delineate these numerous accessions to save time and resources as well. This study aims to delineate fifty selected Cucumis accessions based on leaf architecture. Using Unweighted Pair Group Method using Averages (UPGMA) and Euclidean distance coefficient, a cluster analysis for the fifty Cucumis accessions was done. A dendogram with cophenetic coefficient of 0.9606 supported the clustering of the Cucumis species and accessions. At Eucledian distance of 1.5 two major clusters were formed on the basis of secondary vein spacing. Cucumis melo accessions separated from all the remaining accessions of C. myriocarpus, C. metuliferus, C. anguria and C. anguria var longaculeatus for having an increasing towards the base secondary vein spacing while the rest have irregular pattern of secondary vein spacing. Further sub-clustering of the remaining accessions comprising four species were delineated on the basis of tertiary vein (C. myriocarpus), tertiary vein angle to primary (C. metuliferus), and blade class (C. anguria and C. anguria var longaculeatus). Laminar shape delineated C. myriocarpus accessions from each other, apex angle for C. metuliferus accessions, and primary vein size for C. melo accessions. Results implied that leaf architecture is a good tool to classify the numerous accessions of Cucumis.

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“…The coloration of vegetative and reproductive structures was observed from sampled and cultivated material, then presented in a widespread fashion avoiding terminology conflict due to great variation in tonality. The floral and vegetative character description follows Croat and Bunting (), Stearn () and Mantovani et al ().…”

Section: Methodsmentioning

confidence: 99%

Anthurium viridivinosum sp. nov. (Araceae; A. sect. Urospadix subsect. Flaviscentiviridia) from a sedimentary coastal plain in southeastern Brazil

Valadares¹,

Sakuragui²

2014

Nordic Journal of Botany

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Leaf midrib outline as a diagnostic character for taxonomy in Anthurium section Urospadix subsection Flavescentiviridia (Araceae)

Cited by 15 publications

References 14 publications

Anatomia comparada da folha e espata de espécies de Anthurium (Araceae) ocorrentes na Mata Atlântica

Anatomia comparada da folha e espata de espécies de Anthurium (Araceae) ocorrentes na Mata Atlântica

Delineation of the selected Cucumis L. species and accessions using leaf architecture characters

Anthurium viridivinosum sp. nov. (Araceae; A. sect. Urospadix subsect. Flaviscentiviridia) from a sedimentary coastal plain in southeastern Brazil

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