667. Hemipogon Abietoides

Rapini, Alessandro; Ribeiro, Patrícia Luz; Silva, Uiara Catharina Soares e

doi:10.1111/j.1467-8748.2010.01681.x

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Hemipogon abietoides E.Fourn., described in Flora Brasiliensis (Fournier 1885) from a specimen collected by Riedel during the legendary expedition headed by Langsdorff through the Espinhaço Range of Minas Gerais, for instance, was recollected only 175 years after its original collection (Rapini et al 2010). Molecular phylogenetic analyses (Ribeiro et al 2012(Ribeiro et al , 2014Silva et al 2012)…”

Section: Discussionmentioning

confidence: 99%

Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil

Bitencourt

Santos

Snak

et al. 2020

EJT

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576

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Hemipogon s. str. (Apocynaceae: Asclepiadoideae) currently consists of three species sharing an erect herbaceous habit, narrow leaves and corona-less flowers with urceolate, internally bearded corolla, that are mainly distributed in savannahs of the Cerrado biodiversity hotspot, South America. Here, we describe and illustrate a new species of Hemipogon, H. trilobatus Bitencourt & Rapini sp. nov., from an open savannah in Chapada dos Veadeiros, Central Brazil. Hemipogon trilobatus sp. nov. differs from the other species of the genus mainly by the presence of a reduced staminal corona with 3-lobed lobes, but also by opposite leaves and triangular anthers. Distribution and habitat data, as well as a key and a comparative table to distinguish the four species currently accepted in Hemipogon s. str., are provided. Based on criteria B2ab(i,ii,iii,iv) of the International Union for Conservation of Nature (IUCN), the species is provisionally assessed as Critically Endangered.

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Section: Discussionmentioning

confidence: 99%

Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil

Bitencourt

Santos

Snak

et al. 2020

EJT

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576

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Spatial analyses of the phylogenetic diversity ofMinaria(Apocynaceae): assessing priority areas for conservation in the Espinhaço Range, Brazil

Ribeiro

Rapini

Silva

et al. 2012

Systematics and Biodiversity

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Taxonomy "under construction": advances in the systematics of Apocynaceae, with emphasis on the Brazilian Asclepiadoideae

Rapini

2012

Rodriguésia

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The Apocynaceae comprise approximately 5,000 species and are widely distributed. The family belongs to the Gentianales and can be easily recognized by the presence of latex and a style-head derived from the fusion of two carpels at the apex of the styles. The largest subfamily in Apocynaceae is Asclepiadoideae. Treated as the Asclepiadaceae for almost two centuries, it comprises about 3,000 species and is defined by stamens with bisporangiate anthers and pollen transferred in specialized units called pollinaria. Since the 19th century, floristic studies and taxonomic monographs have significantly contributed to the taxonomy of Brazilian Asclepiadoideae. Nevertheless, advances in understanding the internal relationships in the subfamily were not done until this millennium, with the popularization of phylogenetic studies based on molecular data and powerful computer analyses. Advances in the systematics of Apocynaceae have provided new interpretations on the morphological evolution and biogeography of the family and have led to important changes in its classification. Nevertheless, several taxonomic rearrangements are still needed and it can be said that the taxonomy of Apocynaceae is "under construction". In this article, the major taxonomic changes in the family are reviewed, with special attention given to the systematics of Neotropical groups. A cladogram of the Apocynaceae is presented, which highlights the phylogenetic position of the Brazilian genera and their diversity in number of native species. The main studies and the diversity of Asclepiadoideae in Brazil are summarized and perspectives for future research on the subfamily are presented.

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667. Hemipogon Abietoides

Cited by 3 publications

References 14 publications

Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil

Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil

Spatial analyses of the phylogenetic diversity ofMinaria(Apocynaceae): assessing priority areas for conservation in the Espinhaço Range, Brazil

Taxonomy "under construction": advances in the systematics of Apocynaceae, with emphasis on the Brazilian Asclepiadoideae

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