&lt;I&gt;Microlicia longicalycina&lt;/I&gt; (Melastomataceae), a New Species from the State of Minas Gerais, Brazil, with Notes on Leaf Anatomy

Romero, Rosana; Castro, Neuza Maria de

doi:10.1600/036364414x682607

Cited by 19 publications

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“…; Cassiano et al. ; Romero & Castro ; Romero et al. , , ), reveal the presence of a stalk in these trichomes, which is in agreement with the definitions of Mentink & Baas () of “short‐stalked glandular hairs” or “bladder‐like glandular hairs”.…”

Section: Discussionsupporting

confidence: 86%

“…The predominant type of vascular bundle, in the blade and in the petiole, is collateral, as observed in all Lavoisiera and in approximately 70% of Microlicia species studied, in addition to those previously studied (Reis et al. , Somavilla & Graciano‐Ribeiro ; Romero & Castro ; Romero et al. ).…”

Section: Discussionsupporting

confidence: 61%

“…), the mesophyll is dorsiventral, the type found in most Melastomataceae (Metcalfe & Chalk ; Keating ; Mentink & Baas ). The presence of isobilateral mesophyll with isodiametric cells forming the spongy parenchyma, as observed in Lavoisiera species, and the homogeneous mesophyll type composed of only palisade parenchyma, as observed in most of the species of Microlicia as well as in M. longicalycina R. Romero (Romero & Castro ) seem to be important character states for the delimitation of these two genera. The homogeneous mesophyll of Microlicia may be related to the ascending leaves orientation and to the reduced leaf area, which would contribute to a more uniform distribution of sunlight inside of the leaves.…”

Section: Discussionmentioning

confidence: 74%

“…; Cassiano et al. ; Romero & Castro ; Romero et al. , , ) as well as to understand adaptations to different environmental conditions (Somavilla & Graciano‐Ribeiro ).…”

Section: Introductionmentioning

confidence: 99%

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Leaf characters of Lavoisiera, Microlicia and Trembleya (Microlicieae, Melastomataceae) and their implications for taxonomy

2018

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In Microlicieae taxonomical delimitation of Lavoisiera, Microlicia and Trembleya is problematic. This study aims to fill this gap by identifying leaf characters that are useful for taxonomy of these genera. Species of Rhynchanthera were also included in this study for comparison, since it is an early‐diverging genus of the tribe. Diagnostic characters of Lavoisiera include sessile leaves with spongy parenchyma composed of isodiametric cells, and acute margins with supporting tissue. Trembleya is distinguished by petiolate, microphyllous, and hypostomatic leaves. The presence of depressions on the leaf surface and a homogeneous mesophyll is observed only in species of Microlicia. The leaf characters observed in Rhynchanthera, together with the available phylogenetic studies, were important to indicate evolutionary tendencies in the leaf structure within Microlicieae. Thus, our results indicate a tendency for reduction in leaf size within the tribe, in relation to both the petiole and the lamina. This reduction, which is more pronounced in Microlicia, results in a greater anatomical heterogeneity, due to variations in the organization of both vascular and fundamental tissues.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 74%

“…; Cassiano et al. ; Romero & Castro ; Romero et al. , , ) as well as to understand adaptations to different environmental conditions (Somavilla & Graciano‐Ribeiro ).…”

Section: Introductionmentioning

confidence: 99%

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Leaf characters of Lavoisiera, Microlicia and Trembleya (Microlicieae, Melastomataceae) and their implications for taxonomy

2018

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“…); folha peciolada (pecíolo ≥ 0,6 mm compr.). Estudos recentes (Romero & Castro 2014;Romero et al 2015a;Romero et al 2015b) revelaram que as glândulas sésseis que …”

Section: Methodsunclassified

Microlicieae (Melastomataceae) no município de Mucugê, Chapada Diamantina, Bahia, Brasil

2017

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Resumo AbstractThis study provides a taxonomic survey of Microlicieae tribe in the Mucugê municipality, Chapada Diamantina, Bahia, Brazil. We identified 27 species belonging to three genera: Lavoisiera (L. harleyi and L. nervulosa), Microlicia (24 species) and Trembleya parviflora. Except for Microlicia fasciculata, M. viminalis and Trembleya parviflora, the others species found in Mucugê are endemic to Chapada Diamantina, Bahia. Among the species of Microlicia, four were recently described, and four others still require further studies for its identification. Polysporangiate anthers were described for the first time for 11 species of Microlicia. The species of Microlicieae are found mainly in rocky field vegetation, between 900-1.500 m altitude, in sandy or rocky soils, sometimes associated to water streams.

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Lavoisiereae: A Neotropical Tribe with Remarkable Endemism on Eastern Brazilian Mountaintops

Pacífico

Almeda²

2022

Systematics, Evolution, and Ecology of Melastomataceae

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<I>Microlicia longicalycina</I> (Melastomataceae), a New Species from the State of Minas Gerais, Brazil, with Notes on Leaf Anatomy

Cited by 19 publications

References 0 publications

Leaf characters of Lavoisiera, Microlicia and Trembleya (Microlicieae, Melastomataceae) and their implications for taxonomy

Leaf characters of Lavoisiera, Microlicia and Trembleya (Microlicieae, Melastomataceae) and their implications for taxonomy

Microlicieae (Melastomataceae) no município de Mucugê, Chapada Diamantina, Bahia, Brasil

Lavoisiereae: A Neotropical Tribe with Remarkable Endemism on Eastern Brazilian Mountaintops

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