2005
DOI: 10.1590/s0100-84042005000300004
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Anatomia foliar de Melastomataceae do cerrado do Estado de São Paulo

Abstract: -(Leaf anatomy of Melastomataceae from the Cerrado of São Paulo State). We studied the leaf of 22 species of Melastomataceae (tribe Miconieae, Tibouchinieae e Microlicieae) from the cerrado of São Paulo State. In all representatives the leaves are dorsiventral and hypostomatic and present bicollateral vascular bundles in the midrib (except for one species). Some features such as type and position of the stomata and the aspect of the midrib surface vary even within a single genus. Other features like cuticle th… Show more

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Cited by 35 publications
(48 citation statements)
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“…As for Miconia chamissois, our findings are congruent with previous descriptions classifying the mature leaves of this species as glabrous (Martins et al 1996;Reis et al 2005). However, it is worth noting that short stellate trichomes covered with alveolar cuticle are present on both surfaces of young leaves.…”
Section: Discussionsupporting
confidence: 91%
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“…As for Miconia chamissois, our findings are congruent with previous descriptions classifying the mature leaves of this species as glabrous (Martins et al 1996;Reis et al 2005). However, it is worth noting that short stellate trichomes covered with alveolar cuticle are present on both surfaces of young leaves.…”
Section: Discussionsupporting
confidence: 91%
“…Martins et al (1996) described this indumentum as stellate canescent, with the upper surface of the leaf glabrous and the lower surface densely covered with stellate non-glandular hairs. The morphology of the nonglandular trichomes observed on the young and mature leaves of Microlepis oleaefolia is similar to that described by Mentink & Baas (1992) and Reis et al (2005).…”
Section: Discussionsupporting
confidence: 86%
“…Quando se analisa a posição das células estomáticas em relação às demais células epidérmicas, observa-se que poucos são os autores que relatam a sua posição ligeiramente superior, pois, conforme descrito por Reis et al (2005), a maioria dos representantes de Myrtales possui estômatos nivelados com as demais células epidérmicas. Entretanto, assim como foi observado no presente estudo, Gomes & Machado (1995) descrevem em Gomidesia nitida e em G. spectabilis a posição ligeiramente elevada das células subsidiárias às epidérmicas, bem como Auricchio & Bacchi (2003) para Eugenia pyriformis Cambess.…”
Section: Discussionunclassified
“…Nota-se que poucas são as espécies de Myrtaceae que apresentam flanges cuticulares, entretanto Donato & Morretes (2005; (1995), a camada cuticular recoberta por um depósito de cera forma padrões definidos que também podem ser utilizados como caráter taxonômico em Myrtaceae. Segundo Reis et al (2005), células epidérmicas maiores na face adaxial ocorrem em Myrtaceae, Psiloxylaceae, Penaeaceae, Combretaceae, Oliniaceae, Trapaceae, Rynchocalycaceae, Lythraceae, Onagraceae e Vochysiaceae. Donato & Morretes (2005) também observaram que as células na epiderme adaxial de Psidium widgrenianum possuem maior volume em relação às células epidérmicas na face abaxial.…”
Section: Discussionunclassified
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