Caracterização morfoanatômica de folhas e caules de Microlicia hatschbachii Wurdack, Melastomataceae

Cassiano, Dayse Santos Almeida; Branco, Alexsandro; Silva, Tânia Regina dos Santos; Santos, Andrea Karla Almeida dos

doi:10.1590/s0102-695x2010000400011

Cited by 16 publications

(18 citation statements)

References 14 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 bicollateral type, observed in the species of both Rhynchanthera and Trembleya and in five species of Microlicia , has also been described for T. parviflora (Somavilla & Graciano‐Ribeiro ) and M. hatschbachii Wurdack (Cassiano et al. ). Thus, the type of vascular bundles is important to generic delimitations: collateral vascular bundles distinguish Lavoisiera , whereas the bicollateral type occurs in all species of Rhynchanthera and Trembleya .…”

Section: Discussionmentioning

confidence: 77%

“…; Cassiano et al. ; Somavilla & Graciano‐Ribeiro ). In other tribes such as Miconieae and Melastomeae (Reis et al.…”

Section: Discussionmentioning

confidence: 98%

“…However, an elliptic shape is also found less frequently, such as in M. nervosa and M. hatschbachii (Cassiano et al. ), and can be interpreted as an important character for the recognition of species.…”

Section: Discussionmentioning

confidence: 99%

“…; 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: Discussionmentioning

confidence: 77%

“…; Cassiano et al. ; Somavilla & Graciano‐Ribeiro ). In other tribes such as Miconieae and Melastomeae (Reis et al.…”

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

“…; 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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