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Comparative leaf anatomy and morphology of some neotropical Rutaceae: Pilocarpus Vahl and related genera

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Abstract

Previous anatomical studies have been restricted to the foliar aspects of Pilocarpus. However, no anatomical studies analyzing the foliar aspects of Pilocarpus in relation to related genera have been carried out. Therefore, the aim of this study was to identify characters for future taxonomic and phylogenetic studies in Rutaceae, particularly in Pilocarpus, and to discuss the characteristics associated with the simple or compound leaf condition for the group. The petiole and the leaf blade of 14 neotropical Rutaceae species were analyzed, and the following characteristics were observed in all leaves studied: stomata on both surfaces; secretory cavities, including mesophyll type; camptodromous–brochidodromous venation pattern; and free vascular cylinder in the basal region of the petiole. Additional promising characters were identified for future taxonomic and phylogenetic studies in the Rutaceae family, especially for the Pilocarpus genera.

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Acknowledgments

The authors thank the CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) and FAPESP (Fundação de Amparo a Pesquisa do Estado de São Paulo) for its financial support. Our thanks also go to Dr. J.R. Pirani for suggestions during the development of the study.

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  1. Laboratório de Anatomia Vegetal, Departamento de Botânica, IB, Universidade de São Paulo, Rua do Matão 277, Travessa 14, Caixa Postal 11461, São Paulo, SP, 05422-970, Brazil

    Thais Gomes Muntoreanu, Rafael da Silva Cruz & Gladys Flávia Melo-de-Pinna

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  1. Thais Gomes Muntoreanu
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  2. Rafael da Silva Cruz
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  3. Gladys Flávia Melo-de-Pinna
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Correspondence to Gladys Flávia Melo-de-Pinna.

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Muntoreanu, T.G., da Silva Cruz, R. & Melo-de-Pinna, G.F. Comparative leaf anatomy and morphology of some neotropical Rutaceae: Pilocarpus Vahl and related genera. Plant Syst Evol 296, 87–99 (2011). https://doi.org/10.1007/s00606-011-0478-3

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