Registros nuevos y comentarios taxonómicos en  Acanthaceae, Apocynaceae, Aristolochiaceae, Asteraceae  y Monimiaceae para el bosque tropical Atlántico de Brasil

Zavatin, Danilo Alvarenga; Freitas, J. F. Teixeira de; Morales, J. Francisco; Pauli, María Cristina; Rodrigues, Marianna Conceição; Lírio, Elton John de

doi:10.22201/ib.20078706e.2023.94.5088

Rev.Mex.Biodiv.

2023

DOI: 10.22201/ib.20078706e.2023.94.5088

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Registros nuevos y comentarios taxonómicos en Acanthaceae, Apocynaceae, Aristolochiaceae, Asteraceae y Monimiaceae para el bosque tropical Atlántico de Brasil

Danilo Alvarenga Zavatin

J. F. Teixeira de Freitas²,

J. Francisco Morales³

et al.

Abstract: Se reportan nuevos registros de Aristolochia stomachoides, Macropeplus ligustrinus, Mollinedia heteranthera, M. lamprophylla, M. puberula, Odontadenia gracilipes, Pseuderanthemum congestum, Ruellia subsessilis y Senecio madagascariensis, presentes en el bosque Atlántico de Brasil, ampliando el conocimiento de su distribución geográfica. Se brindan comentarios sobre la taxonomía, su relación con especies afines, así como hábitat, imágenes y estado de conservación.

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Dealing with dissention in the ranks: A phylogenetic study of Odontadenieae (Apocynaceae)

Morales,

Endress

2024

TAXON

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The circumscription of Odontadenieae (Apocynaceae) and its constituent genera (including the infrageneric classifications for Odontadenia) are tested here based on the phylogenetic analyses of 33 nuclear and 164 chloroplast sequences from 33 species, 84 available for the first time. As currently circumscribed, Odontadenieae is monophyletic, with the genera divided into three main clades. However, Odontadenia and the subgenera and sections of its three earlier infrageneric classifications are all non‐monophyletic. Secondatia is nested within Odontadenia, and O. laxiflora is nested in Pentalinoninae. In order to achieve a monophyletic Odontadenia, we propose the recognition of Codonechites and its transfer to Pentalinoninae. Secondatia species are transferred to Odontadenia, and Angadenia is reduced to a synonym of Pentalinon. Our results support the inclusion of Elytropus in Mesechiteae and the recognition of three sections in Odontadenia. The status of O. sect. Anomalae cannot be evaluated at this time, and is treated as incertae sedis. Eight genera and 39 species are recognized in the tribe here. In addition to the previously published Pentalinoninae, two new subtribes, Cycladeniinae and Odontadeniinae, are published here to accommodate the taxa in the corresponding clades recovered in this study.

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Dealing with dissention in the ranks: A phylogenetic study of Odontadenieae (Apocynaceae)

Morales,

Endress

2024

TAXON

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Reproductive biology of Aristolochia trilobata L. (Aristolochiaceae)

Nakonechnaya,

Nesterova,

Kalachev

2024

Botanical Journal of the Linnean Society

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Aristolochia trilobata is a medicinal and ornamental liana that is distributed along the Caribbean coast of Central America and all over the West Indies. This species is a valuable component of the biotope, since its leaves serve as the only food for caterpillars of the vulnerable butterfly Parides ascanius. Because of rapid deforestation, the number of A. trilobata plants is decreasing. Hence, studying of A. trilobata reproductive biology is important to preserve this valuable species. We studied reproductive biology of this species in greenhouse conditions in Vladivostok. Our results indicate that the ontogeny of A. trilobata ex situ consists of the latent, pre-reproductive, and reproductive ontogenetic periods. The plants enter the reproductive period at ~3.5 years after seedling. The flowering process of each flower includes three phases: female, intermediate, and male. Protogynous flowers are adapted to cross-pollination by insects and bloom for 3 days. Their stigmas are receptive for the first 2 days of flowering. Pollen grains are spheroidal, inaperturate. When anthers open, the pollen grains rapidly germinate and this determines the fertilization success at the female phase of the anthesis. The plants can self-pollinate by geitonogamy, but the presence of a pollination agent is required. The fruit contains about 350 seeds. Rapid and synchronous seed germination, plant development to reproductive state, the regular flowering, high percentage of normal pollen, and rapid development of fruits with a high number of viable seeds indicate the high reproductive ability of A. trilobata and plants’ ability to adapt to ex situ conditions.

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Registros nuevos y comentarios taxonómicos en Acanthaceae, Apocynaceae, Aristolochiaceae, Asteraceae y Monimiaceae para el bosque tropical Atlántico de Brasil

Cited by 2 publications

References 21 publications

Dealing with dissention in the ranks: A phylogenetic study of Odontadenieae (Apocynaceae)

Dealing with dissention in the ranks: A phylogenetic study of Odontadenieae (Apocynaceae)

Reproductive biology of Aristolochia trilobata L. (Aristolochiaceae)

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